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Updated: Had 6790, Bought (2) 6950, sent back for 7970 -- Best Idea ever

post #1 of 57
Thread Starter 
Hi, I am interested in reading some opinions from others who may have tried this setup. I have an HIS 6790 IceQ 1GB GDDR5 card, and I have noticed that it is not a very popular card. I paid about $150 about 7 months ago. It's been a great card... never had a problem with it.

Now I finally jumped into an EyeFinity setup, and I like it. I tried to run Battlefield 3 under Auto settings (which for my machine is everything set to "High") like I had been doing all along with great success on one monitor. The resolution was also set to 1920x1080. Zero lag or problems on one monitor. As soon as I had the EyeFinity set up, it was tons of chop. The first thing I noticed is that when I would click through the menus it would not even acknowledge that I was making changes. My weapon wouldn't appear on the screen at respawn either. Total laggy nonsense.

Naturally my first instinct was to turn down the eye candy and lower the resolution. I have it now set to 1600x900 per monitor. Minimal change in clarity, but a huge increase in performance with EyeFinity. I also turned the eye candy down to "MEDIUM". This is a temporary fix for me. I can still tell that there is a lower level of performance now versus the one monitor setup I had before.

I am considering buying a second HIS 6790 and running it in Crossfire. Or I could buy a 7000 series card and skip all that, but the cost difference is large. I can get a 2nd 6790 for about $135 right now, versus buying a nice 3GB 79xx for $400. The 7900s say they are 384bit and the 6790 I have is 256bit. Also 3GB versus 1GB X 2.

One of the other reasons I am asking, is because I have read that a lot of folks are unhappy with their PC when they Crossfire it. I think people have high hopes like me. I want to be able to play all of these games with the highest settings and not worry about the chop.


Here is my current setup:

Cooler Master HAF X Full Tower Case
MSI 890FXA-GD65 ATX Motherboard
AMD Phenom II X6 Thuban Black Edition 1090T CPU @ 3.2GHz
HIS HD 6790 IceQ 1GB GDDR5 Graphics Card
8GB (4x2GB) Corsair XMS3 DDR3-1333 RAM
250GB Seagate Barracuda 7200RPM HDD
600W Apevia Power Supply
22X Samsung DVD Writer

3 X Asus VS228 21.5" LED 1080p Monitors
ACCELL Active Mini-DisplayPort to DVI Adapter


Obviously I would also upgrade my PSU if I purchased a second card (maybe an 850W?). I am also on the hunt for a nice gaming mouse because the one that I have now is getting me killed. I am also thinking of upgrading the RAM to 16GB (4x4GB). Any advise from those who have been in this boat, I would appreciate. Thank you!
Edited by FobbaBeans - 7/19/12 at 6:00pm
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Jeff's Full Tower
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Samsung SH-S223L DVD Writer w/ LightScribe Thermaltake SpinQ CPU Cooler Cooler Master Case Fans (3 x 200mm, 2 x 120mm) Windows 7 Ultimate 
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ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor RAZER (RZ03-00181400-R3U1) Black USB Wired Lyco... 
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post #2 of 57
Thread Starter 
I had kind of hoped for a reply to this thread.

Anyways I sold my 6790 and bought an XFX 6950

Here is my new setup

Cooler Master HAF X Full Tower Case
MSI 890FXA-GD65 ATX Motherboard
AMD Phenom II X6 Thuban Black Edition 1090T CPU @ 3.2GHz
XFX HD 6950 Double D 2GB GDDR5 Graphics Card
16GB (4x4GB) Corsair Vengeance DDR3-1600 RAM
250GB Seagate Barracuda 7200RPM HDD
1000W KingWin LZ-1000 Power Supply
22X Samsung DVD Writer

3 X Asus VS228 21.5" LED 1080p Monitors
ACCELL Active Mini-DisplayPort to DVI Adapter


-- Future plans:
+ 2nd 6950 (XFire)
+ 200mm case fan w/ blue LED (for empty top front fan slot)
+ 120GB SSD for Win7/64 Ultimate and Battlefield3
+ 2nd optical drive Blu-ray combo drive
+ gaming mouse (3000+ dpi)
+ new CPU cooler or liquid cooling

What does everyone use to monitor temps? My motherboard only goes up to DDR3-1333 without OC but I have 1600 RAM. I would also be interested to do a mild OC on the CPU and GPUs after all is said and done. I'm also wondering if in addition to liquid cooling the CPU, if it was worth the money to liquid cool the CPUs as well? Any info greatly appreciated, as I am no newby to PCs, just to the world of overclocking.
Edited by FobbaBeans - 6/22/12 at 1:30pm
Jeff's Full Tower
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Seagate Barracuda ST250DM000 / 250GB 3.5" 7200R... Seagate Momentus / 250GB 2.5" 5400RPM Hard Disk... Hitachi Travelstar / 60GB 2.5" 5400RPM Hard Dis... SanDisk Extreme / 120GB SATA III SSD 
Optical DriveCoolingCoolingOS
Samsung SH-S223L DVD Writer w/ LightScribe Thermaltake SpinQ CPU Cooler Cooler Master Case Fans (3 x 200mm, 2 x 120mm) Windows 7 Ultimate 
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ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor RAZER (RZ03-00181400-R3U1) Black USB Wired Lyco... 
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KINGWIN International Lazer LZ-1000 1000W Modul... COOLER MASTER (RC-942-KKN1) HAF X RC-942-KKN1 B... Logitech Optical USB Mouse Standard Mouse Pad w/ wrist cushion 
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Jeff's Full Tower
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Hard DriveHard DriveHard DriveHard Drive
Seagate Barracuda ST250DM000 / 250GB 3.5" 7200R... Seagate Momentus / 250GB 2.5" 5400RPM Hard Disk... Hitachi Travelstar / 60GB 2.5" 5400RPM Hard Dis... SanDisk Extreme / 120GB SATA III SSD 
Optical DriveCoolingCoolingOS
Samsung SH-S223L DVD Writer w/ LightScribe Thermaltake SpinQ CPU Cooler Cooler Master Case Fans (3 x 200mm, 2 x 120mm) Windows 7 Ultimate 
MonitorMonitorMonitorKeyboard
ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor RAZER (RZ03-00181400-R3U1) Black USB Wired Lyco... 
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KINGWIN International Lazer LZ-1000 1000W Modul... COOLER MASTER (RC-942-KKN1) HAF X RC-942-KKN1 B... Logitech Optical USB Mouse Standard Mouse Pad w/ wrist cushion 
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post #3 of 57
Sound like you were VRAM limited once you added in the second monitor. At 1920x1080 ultra, BF3 uses over 1.5 gigs of VRAM on my single monitor with my crossfire 6950's. You can use a variety of programs to monitor temps such as CPUID Hardware Monitor. Unless you plan to massively overclock your CPU and GPU, I say air cooling will be quite fine.
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post #4 of 57
I'm sorry nobody replied sooner. I(we) would have probably steered you away from a 6950 and toward a 7850 or 7870 like you had originally thought of in the thread title. A 7850 would have been same price as a 6950 (assuming you bought it new from a retailer) and with a light overclock the 7850 would have owned a 6950 plus better AA and Tessellation performance. But since you have it now... do you know if it has the dual BIOS switch for unlocking to a 6970?
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post #5 of 57
Thread Starter 
I got the XFX 2GB 6950 DD Part Number 695X-CDFC. Not sure I dont remember seeing the specs you're asking for.


Right now with the 2GB card, I'm not doing as well as I'd hoped on BF3. In EyeFinity I'm getting around 45-60 frames but I'm using low settings with no AA on 4800 x 900. This is an improvement in itself from what the 6790 got me. I was using a really low resolution before with the 6790 trying to keep the 60 frames desired.

I'm hoping when I add another 6950 via Crossfire X I will get the texture quality I'm looking for and the EyeFinity performance I desire.
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Hard DriveHard DriveHard DriveHard Drive
Seagate Barracuda ST250DM000 / 250GB 3.5" 7200R... Seagate Momentus / 250GB 2.5" 5400RPM Hard Disk... Hitachi Travelstar / 60GB 2.5" 5400RPM Hard Dis... SanDisk Extreme / 120GB SATA III SSD 
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Jeff's Full Tower
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Hard DriveHard DriveHard DriveHard Drive
Seagate Barracuda ST250DM000 / 250GB 3.5" 7200R... Seagate Momentus / 250GB 2.5" 5400RPM Hard Disk... Hitachi Travelstar / 60GB 2.5" 5400RPM Hard Dis... SanDisk Extreme / 120GB SATA III SSD 
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Samsung SH-S223L DVD Writer w/ LightScribe Thermaltake SpinQ CPU Cooler Cooler Master Case Fans (3 x 200mm, 2 x 120mm) Windows 7 Ultimate 
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ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor RAZER (RZ03-00181400-R3U1) Black USB Wired Lyco... 
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post #6 of 57
Yeah, I would have recommended the 7850 or 7870.
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post #7 of 57
Thread Starter 
well... for $215 shipped BNIB I couldnt complain. So I should send the 6950 back? I was fixing to order 6950 #2 in a few minutes. the second one will be 198 after MIR
Jeff's Full Tower
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Hard DriveHard DriveHard DriveHard Drive
Seagate Barracuda ST250DM000 / 250GB 3.5" 7200R... Seagate Momentus / 250GB 2.5" 5400RPM Hard Disk... Hitachi Travelstar / 60GB 2.5" 5400RPM Hard Dis... SanDisk Extreme / 120GB SATA III SSD 
Optical DriveCoolingCoolingOS
Samsung SH-S223L DVD Writer w/ LightScribe Thermaltake SpinQ CPU Cooler Cooler Master Case Fans (3 x 200mm, 2 x 120mm) Windows 7 Ultimate 
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ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor RAZER (RZ03-00181400-R3U1) Black USB Wired Lyco... 
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Jeff's Full Tower
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Hard DriveHard DriveHard DriveHard Drive
Seagate Barracuda ST250DM000 / 250GB 3.5" 7200R... Seagate Momentus / 250GB 2.5" 5400RPM Hard Disk... Hitachi Travelstar / 60GB 2.5" 5400RPM Hard Dis... SanDisk Extreme / 120GB SATA III SSD 
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ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor RAZER (RZ03-00181400-R3U1) Black USB Wired Lyco... 
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post #8 of 57
Thread Starter 
to answer your question about the bios here is something i found on newegg that a very helpful reviewer cleared up.

"*The pros outweigh the cons and this card is still worth it.
*Random note, this card does not have dual bios. There are a few cards that have single bios and can still be flashed to have unlocked shaders or flashed to be a 6970. This card is not one of them. The bios is locked and you cannot erase the bios to flash it to the modded 6950 bios or the 6970 bios."
Jeff's Full Tower
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Hard DriveHard DriveHard DriveHard Drive
Seagate Barracuda ST250DM000 / 250GB 3.5" 7200R... Seagate Momentus / 250GB 2.5" 5400RPM Hard Disk... Hitachi Travelstar / 60GB 2.5" 5400RPM Hard Dis... SanDisk Extreme / 120GB SATA III SSD 
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Samsung SH-S223L DVD Writer w/ LightScribe Thermaltake SpinQ CPU Cooler Cooler Master Case Fans (3 x 200mm, 2 x 120mm) Windows 7 Ultimate 
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ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor RAZER (RZ03-00181400-R3U1) Black USB Wired Lyco... 
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Jeff's Full Tower
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Hard DriveHard DriveHard DriveHard Drive
Seagate Barracuda ST250DM000 / 250GB 3.5" 7200R... Seagate Momentus / 250GB 2.5" 5400RPM Hard Disk... Hitachi Travelstar / 60GB 2.5" 5400RPM Hard Dis... SanDisk Extreme / 120GB SATA III SSD 
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Samsung SH-S223L DVD Writer w/ LightScribe Thermaltake SpinQ CPU Cooler Cooler Master Case Fans (3 x 200mm, 2 x 120mm) Windows 7 Ultimate 
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ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor ASUS VS228 21.5" LED 1080p Monitor RAZER (RZ03-00181400-R3U1) Black USB Wired Lyco... 
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post #9 of 57
Send it back and grab a 7950 3GB,cheaper than 2 6950's and the extra memory will make a difference. Overclocked to 1100MHz should beat 2 6950's. 1 card is always better than 2 in terms of ease of use.
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post #10 of 57
Quote:
Originally Posted by FobbaBeans View Post

well... for $215 shipped BNIB I couldnt complain. So I should send the 6950 back? I was fixing to order 6950 #2 in a few minutes. the second one will be 198 after MIR

Send the HD 6950 back. Get a HD 7950 OC . couple of options

GIGABYTE HD 7950 OC (900 Mhz) - USD 370
http://www.amazon.com/Gigabyte-Mini-Displayport-PCI-Express-Graphic-GV-R795WF3-3GD/dp/B007581QHG/
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125414

Sapphire HD 7950 950 Mhz edition - USD 390
http://www.amazon.com/Sapphire-PCI-Express-version-Graphics-11196-10-40G/dp/B0082D58P4/

Sapphire HD 7950 950 Mhz edition uses a ref HD 7970 PCB with 8 pin and 6 pin power . dual bios with 2nd bios for aggressive overclocking. Both cards have good cooler. Gigabyte has 3 yr warranty while sapphire has 2 yr.

here is a user running BF3 Ultra (no MSAA) at 5760 x 1080 with avg 44 fps and min 37 fps. he is running a sapphire HD 7950 950 Mhz edition card at 1160 Mhz.

http://www.overclock.net/t/1268397/radeon-7950-or-gtx-670-for-5760x1080/20#post_17525733

Best option for multi monitor gaming is going for a single high end GPU. HD 7950 with 384 bit memory bus and 3 GB VRAM is an ideal fit for multi monitor gaming. DX11 performance is much better on HD 7900 cards compared to HD 6900 cards. tesselation performance and compute performance is much better which makes a big difference in DX 11 titles like BF3, Crysis 2, Batman AC . get a HD 7950 and enjoy multi monitor gaming. thumb.gif
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Fragbox
(14 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i5 2400 DH67BL AMD Radeon HD 6900 Series XFX HD 6950 2GB 
RAMRAMHard DriveOptical Drive
Corsair Corsair DDR3 1333 Mhz 2 GB Corsair DDR3 1333 Mhz 2 GB Western Digital Caviar Green SONY DVD-RW AD-7260S 
OSMonitorKeyboardPower
Windows 7 Professional 32 bit BENQ G2420HD Logitech K200 Seasonic VX550 psu 
CaseMouse
ANTEC 200 V2 Logitech mouse 
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Reply
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Overclock.net › Forums › Graphics Cards › AMD/ATI › Updated: Had 6790, Bought (2) 6950, sent back for 7970 -- Best Idea ever