Overclock.net › Forums › Industry News › Hardware News › [Toms] Micro-Stuttering And GPU Scaling In CrossFire And SLI
New Posts  All Forums:Forum Nav:

[Toms] Micro-Stuttering And GPU Scaling In CrossFire And SLI - Page 12

post #111 of 177
Quote:
Originally Posted by ZealotKi11er View Post
Not sure but i can never notice it when i had HD 4870s CF. The thing is that if u are running CF or SLI you are getting high fps. If you are getting low 30s with SLI or CF then there is something wrong with the game or ur setup is too old.
Probably because 4870's were out back in the days when ATI drivers were actually attempting to distribute the frametimes evenly

Some folks may remember that there was a time, actually a little over 1 year ago, when ATI put out a crossfire enhancement package in between driver sets (and it was incorporated into the next driver package), that like magically improved crossfire scaling by like 10-15% overnight. This was before 6xxx-series, at the time, we were still rocking 5850/5870's.

I've been suspicious ever since that time that the way they accomplished this was by re-coding the drivers to abandon attempting to evenly space the output of frames over time on multi-gpu setups ... and I've mentioned it a number of times on OCN.

I believe that they calculated that, since reviewers don't review microstutter, they only review FPS, that they'd sell more multi-gpu setups by throwing caution to the wind and letting the cards fall into whatever pattern of outputting frames that 'came natural'.

Which means, basically, one card never WAITS for the other, and thus they fall into an output pattern that looks like this:

FF--------FF---------FF--------FF

instead of a smooth pattern that looks more like this:
F----F----F----F----F----F----F----F

As you can see, the top frame output pattern puts out the same # of frames in less time ... which = better scaling. However, it is the very definition of microstutter.

Along the same lines, I've also expressed my belief that 100% scaling (or anything real close to that) can ONLY be accomplished via the removal of driver mechanisms that attempt to evenly distribute frametimes, and that actually, with two cards, about the best scaling you can get without falling into a microstutter pattern w/the frametimes is around 80-85%.

EDIT:

@Balla ... I've just dug into the article more, and I think some of your confusion may be due to poor labeling on the graphs.

For example, take a look at the graphs on the page titled Crossfire with Two GPU's. These are NOT your regular 'FPS Over Time' graphs that we are accustomed to seeing.

The Y-Axis there DOES represents 'time to render the frame' (I'm not sure of the UOM) Frames per Second, but the x-axis is NOT 'seconds', rather, it is 'individual frame #'.

So you're looking at a graph that basically shows EDIT: how quickly each individual frame was rendered. Thus, you're looking at the calculated FPS of EACH frame that was rendered over the course of like 1 second, NOT multiple seconds, as it may appear.

And what they show on those graphs is that there's a cyclical variation in the time to render each frame (fast/slow/fast/slow), which = how microstutter is defined.

So, the graphs I'm referring to in the article are basically breaking down the fine details of what ONE DOT on your FPS graph in Afterburner would look like if you broke it down to the 'molecular level' ... iow studying how long EACH frame took to render over the course of one second.

Microstutter has nothing to do with fluctuations of FPS on your standard FPS graph, like in AB. You simply cannot detect MS in any way in such graphs. They lack the necessary granularity.
Edited by brettjv - 8/24/11 at 4:17pm
    
CPUMotherboardGraphicsRAM
xeon X5675 6-core @ 4.1ghz (1.29v, 20x205 +ht ) rampage iii extreme msi rx470 gaming X (the $159 budget king) 3 x 2gb corsair xms3 pc12800 (9-9-9-24-1T@1600MHz) 
Hard DriveOptical DriveCoolingOS
hynix 250gb ssd (boot), 2tb deskstar (apps),1tb... plextor px-712sa - still the best optical drive... corsair h8o v2 aio W10 home 
MonitorPowerCaseAudio
asus vw266h 25.5" (1920x1200) abs sl (enermax revolution) * single 70A rail 850w silverstone rv-03 XFi Titanium 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
xeon X5675 6-core @ 4.1ghz (1.29v, 20x205 +ht ) rampage iii extreme msi rx470 gaming X (the $159 budget king) 3 x 2gb corsair xms3 pc12800 (9-9-9-24-1T@1600MHz) 
Hard DriveOptical DriveCoolingOS
hynix 250gb ssd (boot), 2tb deskstar (apps),1tb... plextor px-712sa - still the best optical drive... corsair h8o v2 aio W10 home 
MonitorPowerCaseAudio
asus vw266h 25.5" (1920x1200) abs sl (enermax revolution) * single 70A rail 850w silverstone rv-03 XFi Titanium 
  hide details  
Reply
post #112 of 177
Quote:
Originally Posted by wuyanxu View Post
i think the point of this article is that multi-GPU really only make sense on ultra-high-end builds where single fastest card still isn't fast enough.
It took people this long to figure it out?
 
Just another BF3
(15 items)
 
 
CPUMotherboardGraphicsRAM
AMD A8-3850 Llano Asus F1A75-V PRO APU 8GB G.Skill Sniper DDR3 1866 
Hard DriveOptical DriveCoolingOS
120GB V3 MAX IOPS, 12TB External Lian Li EX-50 Lite-On iHBS112-29, Pioneer BDR-206DBKS Stock Windows 7 Pro x64 
MonitorKeyboardPowerCase
Sony 54.6" XBR HX929 Logitech MK550 Seasonic X650 GOLD Lian Li PC-B25FWB 
MouseMouse PadAudio
Logitech MK550 Ikea Leather mouse pad Onboard 
CPUMotherboardGraphicsRAM
i7 2600K (4.6GHz) ASUS P8Z68 Deluxe MSI R6970 Lightning 8GB G.Skill Ripjaws X 1600MHz 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 3 240GB, 12TB External Lian Li EX-50 2x Samsung SH-S223F NZXT Havik 140 Windows 7 Ultimate x64 SP1 
MonitorKeyboardPowerCase
Samsung P2570 CM Storm Trigger Seasonic X750 GOLD Lian Li PC-P80NB 
MouseMouse PadAudio
Logitech G400 (the new MX518) NuPad Leather Mouse Pad Asus Xonar Essence ST (UNi drivers 1.41) 
  hide details  
Reply
 
Just another BF3
(15 items)
 
 
CPUMotherboardGraphicsRAM
AMD A8-3850 Llano Asus F1A75-V PRO APU 8GB G.Skill Sniper DDR3 1866 
Hard DriveOptical DriveCoolingOS
120GB V3 MAX IOPS, 12TB External Lian Li EX-50 Lite-On iHBS112-29, Pioneer BDR-206DBKS Stock Windows 7 Pro x64 
MonitorKeyboardPowerCase
Sony 54.6" XBR HX929 Logitech MK550 Seasonic X650 GOLD Lian Li PC-B25FWB 
MouseMouse PadAudio
Logitech MK550 Ikea Leather mouse pad Onboard 
CPUMotherboardGraphicsRAM
i7 2600K (4.6GHz) ASUS P8Z68 Deluxe MSI R6970 Lightning 8GB G.Skill Ripjaws X 1600MHz 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 3 240GB, 12TB External Lian Li EX-50 2x Samsung SH-S223F NZXT Havik 140 Windows 7 Ultimate x64 SP1 
MonitorKeyboardPowerCase
Samsung P2570 CM Storm Trigger Seasonic X750 GOLD Lian Li PC-P80NB 
MouseMouse PadAudio
Logitech G400 (the new MX518) NuPad Leather Mouse Pad Asus Xonar Essence ST (UNi drivers 1.41) 
  hide details  
Reply
post #113 of 177
Quote:
Originally Posted by brettjv View Post
Some folks may remember that there was a time, actually a little over 1 year ago, when ATI put out a crossfire enhancement package in between driver sets (and it was incorporated into the next driver package), that like magically improved crossfire scaling by like 10-15% overnight. This was before 6xxx-series, at the time, we were still rocking 5850/5870's.

I've been suspicious ever since that time that the way they accomplished this was by re-coding the drivers to abandon attempting to evenly space the output of frames over time on multi-gpu setups ... and I've mentioned it a number of times on OCN.

I believe that they calculated that, since reviewers don't review microstutter, they only review FPS, that they'd sell more multi-gpu setups by throwing caution to the wind and letting the cards fall into whatever pattern of outputting frames that 'came natural'.
If that's true, combined with ATI's cheating of lowering AF quality by default, this is just disappointing. You assume that the card is going to perform as well as it does in reviews only to find out it's because they're slacking off in other areas. They assume quantity > quality apparently. Most prefer the opposite. No wonder 3 6950s for $750 give the same fps as 3 580s for $1500...
post #114 of 177
What I added to the Tom's comments, figured I'd share them with my fellow OCN'ers

It's pretty simple why tri-fire/SLI is less susceptible to microstutter than dual. It's less likely to fall into a consistently highly asynchronous frame output pattern, and not as detrimental when it does.

Consider these simple graphs over time. I've used numbers to represent when each card # is outputting a frame. Each digit or dash, left to right, counts as a millisecond. Assume each card is capable one frame every 10 milliseconds.

Assuming load is staying fairly consistent, a single card setup would have the following output pattern:

1---------1---------1---------1---------1-


A dual card setup, assuming two of the same cards as in the last diagram, would (optimally, in terms of smoothness), have an output pattern that looks like this:


1----2----1----2----1----2----1----2----1-

In order to produce this output, your driver must have the ability to force one card to 'wait' for the other, as well as have good algorithms to detect just WHEN such waiting should happen. As the article describes, the reason that nV cards have less microstutter, is simply because they use better/stricter algorithms in terms of imposing 'wait times' in order to maintain even frame output over time.

Now, back to the dual/tri card thing.

With only two cards, it's totally possible for two equally powered cards to fall into the following output pattern:

12--------12--------12--------12--------12

This pattern produces the extreme contrast of the very short/very long frametimes needed to create the horrible microstutter profile seen in the graphs with two cards in xfire. (Note that this pattern ALSO happens to produce the *best* possible FPS scaling, because neither card is ever being 'forced to wait' by the driver in order to maintain even distribution of frame times.)

Optimal output from three of these same cards would look something like this:
1---2--3--1---2--3--1---2--3--1---2--3--1

And the worst possible would look something like this:

123-------123-------123-------123-------123-------

Two things to note about this relative to the worst-case scenario with two cards:

#1 is that the time ratio between when frames are being rendered and when they are not, is lower. With two cards, we have 2 frames rendered per 10 milliseconds (20% of the time), whereas with this tri-gpu scenario, we have frames rendered 3 per 10 milliseconds, which is 30% of the time. Might not sound like much, but 3 is actually 50% more than 2.

#2 is that with 3 cards rendering frames over the course of each 10 millisecond period, it's statistically more unlikely that the card's will fall into the 'worst case' output pattern. IOW, the likelihood of this pattern developing (with two cards):

12--------12--------12

is statistically considerably higher than the probability of this pattern developing (with three cards):

123-------123-------123

And as explained in #1, even when it DOES, it's not as detrimental of a phenomenon.

With three cards, all of which are the same speed, you simply have less chance of having large gaps in time when no frames are being produced.

Edited by brettjv - 8/24/11 at 5:58pm
    
CPUMotherboardGraphicsRAM
xeon X5675 6-core @ 4.1ghz (1.29v, 20x205 +ht ) rampage iii extreme msi rx470 gaming X (the $159 budget king) 3 x 2gb corsair xms3 pc12800 (9-9-9-24-1T@1600MHz) 
Hard DriveOptical DriveCoolingOS
hynix 250gb ssd (boot), 2tb deskstar (apps),1tb... plextor px-712sa - still the best optical drive... corsair h8o v2 aio W10 home 
MonitorPowerCaseAudio
asus vw266h 25.5" (1920x1200) abs sl (enermax revolution) * single 70A rail 850w silverstone rv-03 XFi Titanium 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
xeon X5675 6-core @ 4.1ghz (1.29v, 20x205 +ht ) rampage iii extreme msi rx470 gaming X (the $159 budget king) 3 x 2gb corsair xms3 pc12800 (9-9-9-24-1T@1600MHz) 
Hard DriveOptical DriveCoolingOS
hynix 250gb ssd (boot), 2tb deskstar (apps),1tb... plextor px-712sa - still the best optical drive... corsair h8o v2 aio W10 home 
MonitorPowerCaseAudio
asus vw266h 25.5" (1920x1200) abs sl (enermax revolution) * single 70A rail 850w silverstone rv-03 XFi Titanium 
  hide details  
Reply
post #115 of 177
Doesn't Hydra get rid of this problem inherently..?
Edited by formula m - 8/24/11 at 6:04pm
post #116 of 177
Brett can you reproduce MS on your own for us using FRAPS and how it is done so we can reproduce what you've done in several game titles as well?

I know you've been telling me to do it for awhile now, but I'd really like to see you do it, create a graphic, explain how it was done and then give an explanation of the results.

Would that be possible, or do I ask too much?

Edit: Also would it be true than that the faster the cards are as Toms is stating, the less prone to noticing MS you would be? For instance at stock 607 core would 470 SLI produce more MS than it would in the same game at the same settings at say, 800 core?
Edited by BallaTheFeared - 8/24/11 at 6:10pm
    
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K P8P67 PRO NVIDIA GeForce GTX 470 NVIDIA GeForce GTX 470 
GraphicsRAMRAMRAM
NVIDIA GeForce 9800 GT G-Skill A-Data G-Skill 
RAMHard DriveOptical DriveOS
A-Data Crucial M4 64GB + 1TB F3 Spinpoint $155 LS/DL DVD RW $?? Windows 8 64-bit "Epic Registry" Edition 
MonitorPowerCase
ASUS 21.5 1920x1080 2ms $135 CORSAIR HX850 $120 Mother Earth $free 
  hide details  
Reply
    
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K P8P67 PRO NVIDIA GeForce GTX 470 NVIDIA GeForce GTX 470 
GraphicsRAMRAMRAM
NVIDIA GeForce 9800 GT G-Skill A-Data G-Skill 
RAMHard DriveOptical DriveOS
A-Data Crucial M4 64GB + 1TB F3 Spinpoint $155 LS/DL DVD RW $?? Windows 8 64-bit "Epic Registry" Edition 
MonitorPowerCase
ASUS 21.5 1920x1080 2ms $135 CORSAIR HX850 $120 Mother Earth $free 
  hide details  
Reply
post #117 of 177
Quote:
Originally Posted by formula m View Post
Doesn't Hydra get rid of this problem inherently..?
Good question.

However, even if Hydra doesn't microstutter, it also doesn't scale well, outside of a few key titles.
Primary
(15 items)
 
Secondary
(13 items)
 
In progress
(10 items)
 
CPUMotherboardGraphicsRAM
5820K @ 4.3/3.6GHz core/uncore, 1.225/1.2v Gigabyte X99 SOC Champion (F22n) 2x Sapphire R9 290X Tri-X OC New Edition (10036... 4x4GiB Crucial @ 2667, 12-11-12-27-T1, 1.37v 
Hard DriveHard DriveHard DriveCooling
Plextor M6e 128GB (fw 1.05) M.2 (PCI-E 2.0 2x) 2x Crucial M4 256GB 4x WD Scorpio Black 500GB Cooler Master Nepton 280L 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 BenQ BL3200PT Filco Majestouch Tenkeyless (MX Brown) Corsair RM1000x 
CaseMouseAudio
Fractal Design Define R4 Logitech G402 Realtek ALC1150 + M-Audio AV40 
CPUMotherboardGraphicsRAM
X5670 @ 4.4/3.2GHz core/uncore, 1.36 vcore, 1.2... Gigabyte X58A-UD5 r2.0 w/FF3mod10 BIOS Reference R9 290X w/Stilt's MLU 1000e / 1375m E... 2x Samsung MV-3V4G3D/US @ 2000, 10-11-11-30-T1,... 
RAMHard DriveHard DriveHard Drive
1x Crucial BLT4G3D1608ET3LX0 @ 2000, 10-11-11-3... OCZ (Toshiba) Trion 150 120GB Hyundai Sapphire 120GB 3x Hitachi Deskstar 7k1000.C 1TB 
CoolingOSPowerCase
Noctua NH-D14 Windows 7 Pro x64 SP1 Antec TP-750 Fractal Design R5 
Audio
ASUS Xonar DS 
CPUMotherboardGraphicsRAM
i7-6800K @ 4.3/3.5GHz core/uncore, 1.36/1.2v ASRock X99 OC Formula (P3.10) GTX 780 (temporary) 4x4GiB Crucial DDR4-2400 @ 11-13-12-28-T2, 1.33v 
Hard DriveHard DriveCoolingOS
Intel 600p 256GB NVMe 2x HGST Travelstar 7k1000 1TB Corsair H55 (temporary) Windows Server 2016 Datacenter 
PowerCase
Seasonic SS-860XP2 Corsair Carbide Air 540 
  hide details  
Reply
Primary
(15 items)
 
Secondary
(13 items)
 
In progress
(10 items)
 
CPUMotherboardGraphicsRAM
5820K @ 4.3/3.6GHz core/uncore, 1.225/1.2v Gigabyte X99 SOC Champion (F22n) 2x Sapphire R9 290X Tri-X OC New Edition (10036... 4x4GiB Crucial @ 2667, 12-11-12-27-T1, 1.37v 
Hard DriveHard DriveHard DriveCooling
Plextor M6e 128GB (fw 1.05) M.2 (PCI-E 2.0 2x) 2x Crucial M4 256GB 4x WD Scorpio Black 500GB Cooler Master Nepton 280L 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 BenQ BL3200PT Filco Majestouch Tenkeyless (MX Brown) Corsair RM1000x 
CaseMouseAudio
Fractal Design Define R4 Logitech G402 Realtek ALC1150 + M-Audio AV40 
CPUMotherboardGraphicsRAM
X5670 @ 4.4/3.2GHz core/uncore, 1.36 vcore, 1.2... Gigabyte X58A-UD5 r2.0 w/FF3mod10 BIOS Reference R9 290X w/Stilt's MLU 1000e / 1375m E... 2x Samsung MV-3V4G3D/US @ 2000, 10-11-11-30-T1,... 
RAMHard DriveHard DriveHard Drive
1x Crucial BLT4G3D1608ET3LX0 @ 2000, 10-11-11-3... OCZ (Toshiba) Trion 150 120GB Hyundai Sapphire 120GB 3x Hitachi Deskstar 7k1000.C 1TB 
CoolingOSPowerCase
Noctua NH-D14 Windows 7 Pro x64 SP1 Antec TP-750 Fractal Design R5 
Audio
ASUS Xonar DS 
CPUMotherboardGraphicsRAM
i7-6800K @ 4.3/3.5GHz core/uncore, 1.36/1.2v ASRock X99 OC Formula (P3.10) GTX 780 (temporary) 4x4GiB Crucial DDR4-2400 @ 11-13-12-28-T2, 1.33v 
Hard DriveHard DriveCoolingOS
Intel 600p 256GB NVMe 2x HGST Travelstar 7k1000 1TB Corsair H55 (temporary) Windows Server 2016 Datacenter 
PowerCase
Seasonic SS-860XP2 Corsair Carbide Air 540 
  hide details  
Reply
post #118 of 177
I have micro-stuttering but not in all games. Some scale very well. Crysis 2, as an example, isn't one of them.

There proved their point with only on game, then showed average fps. The game used to show the micro-stuttering issue is Call Of Juarez. Not even in my top 1000 games. It is kinda pointless to show average fps after demonstrating they are not representative of the experience, isn't it?

Many factor will influence micro-stuttering as:

- Game AFR compatibility (which is rare in modern games, BF3 is supposedly good in that respect according to DICE FB2 presentation)
- Vram. With my 6870s, I only have 1GB of it. It is not enough for many games. Then you need to cache elsewhere and performance drops. This is well known in Crysis 1, just scope in to see it.
- Northbridge speed and MB. This has to be proven but it reportedly has an impact.
GrandMax's
(14 items)
 
  
CPUMotherboardGraphicsRAM
3570k 4.5GHz@1.250V Asus P8Z77-V PRO GTX 970 FTW G.SKILL CL7 Ripjaws 8GB 
Hard DriveOptical DriveOSMonitor
2 x 1TB (Samsung F3 + Caviar Black) + Crucial M... Samsung SH-S223C 22X DVD Writer SATA Win7 64bit Samsung LN46D630 120Hz 
KeyboardPowerCaseMouse
Logitech Wireless Corsair 850W Antec Nine Hundred Logitech M705 
Mouse PadAudio
Razer 5.1 DTS (800W + Yamaha Receiver). 15'' Subwoofer. 
  hide details  
Reply
GrandMax's
(14 items)
 
  
CPUMotherboardGraphicsRAM
3570k 4.5GHz@1.250V Asus P8Z77-V PRO GTX 970 FTW G.SKILL CL7 Ripjaws 8GB 
Hard DriveOptical DriveOSMonitor
2 x 1TB (Samsung F3 + Caviar Black) + Crucial M... Samsung SH-S223C 22X DVD Writer SATA Win7 64bit Samsung LN46D630 120Hz 
KeyboardPowerCaseMouse
Logitech Wireless Corsair 850W Antec Nine Hundred Logitech M705 
Mouse PadAudio
Razer 5.1 DTS (800W + Yamaha Receiver). 15'' Subwoofer. 
  hide details  
Reply
post #119 of 177
Quote:
Originally Posted by BallaTheFeared View Post
Brett can you reproduce MS on your own for us using FRAPS and how it is done so we can reproduce what you've done in several game titles as well?

I know you've been telling me to do it for awhile now, but I'd really like to see you do it, create a graphic, explain how it was done and then give an explanation of the results.

Would that be possible, or do I ask too much?

Edit: Also would it be true than that the faster the cards are as Toms is stating, the less prone to noticing MS you would be? For instance at stock 607 core would 470 SLI produce more MS than it would in the same game at the same settings at say, 800 core?
Try this guy's tool for analyzing the fraps output file:

http://forums.overclockers.co.uk/sho...php?t=17896754

I've not checked it out, but I will later on tonight when I get home.

I'm not sure whether faster cards = less pronounced microstutter in the empirical (measurable) sense, however having higher FPS should reduce your ability to perceive any MS that might be there, so ...
    
CPUMotherboardGraphicsRAM
xeon X5675 6-core @ 4.1ghz (1.29v, 20x205 +ht ) rampage iii extreme msi rx470 gaming X (the $159 budget king) 3 x 2gb corsair xms3 pc12800 (9-9-9-24-1T@1600MHz) 
Hard DriveOptical DriveCoolingOS
hynix 250gb ssd (boot), 2tb deskstar (apps),1tb... plextor px-712sa - still the best optical drive... corsair h8o v2 aio W10 home 
MonitorPowerCaseAudio
asus vw266h 25.5" (1920x1200) abs sl (enermax revolution) * single 70A rail 850w silverstone rv-03 XFi Titanium 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
xeon X5675 6-core @ 4.1ghz (1.29v, 20x205 +ht ) rampage iii extreme msi rx470 gaming X (the $159 budget king) 3 x 2gb corsair xms3 pc12800 (9-9-9-24-1T@1600MHz) 
Hard DriveOptical DriveCoolingOS
hynix 250gb ssd (boot), 2tb deskstar (apps),1tb... plextor px-712sa - still the best optical drive... corsair h8o v2 aio W10 home 
MonitorPowerCaseAudio
asus vw266h 25.5" (1920x1200) abs sl (enermax revolution) * single 70A rail 850w silverstone rv-03 XFi Titanium 
  hide details  
Reply
post #120 of 177
Quote:
Originally Posted by brettjv View Post
Try this guy's tool for analyzing the fraps output file:

http://forums.overclockers.co.uk/sho...php?t=17896754

I've not checked it out, but I will later on tonight when I get home.

I'm not sure whether faster cards = less pronounced microstutter in the empirical (measurable) sense, however having higher FPS should reduce your ability to perceive any MS that might be there, so ...
Will do, I'll run clock for clock single vs SLI to see the variations since it seems even single cards produce a MS effect.
    
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K P8P67 PRO NVIDIA GeForce GTX 470 NVIDIA GeForce GTX 470 
GraphicsRAMRAMRAM
NVIDIA GeForce 9800 GT G-Skill A-Data G-Skill 
RAMHard DriveOptical DriveOS
A-Data Crucial M4 64GB + 1TB F3 Spinpoint $155 LS/DL DVD RW $?? Windows 8 64-bit "Epic Registry" Edition 
MonitorPowerCase
ASUS 21.5 1920x1080 2ms $135 CORSAIR HX850 $120 Mother Earth $free 
  hide details  
Reply
    
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K P8P67 PRO NVIDIA GeForce GTX 470 NVIDIA GeForce GTX 470 
GraphicsRAMRAMRAM
NVIDIA GeForce 9800 GT G-Skill A-Data G-Skill 
RAMHard DriveOptical DriveOS
A-Data Crucial M4 64GB + 1TB F3 Spinpoint $155 LS/DL DVD RW $?? Windows 8 64-bit "Epic Registry" Edition 
MonitorPowerCase
ASUS 21.5 1920x1080 2ms $135 CORSAIR HX850 $120 Mother Earth $free 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Hardware News
Overclock.net › Forums › Industry News › Hardware News › [Toms] Micro-Stuttering And GPU Scaling In CrossFire And SLI