Overclock.net › Forums › AMD › AMD CPUs › CPU bottleneck?
New Posts  All Forums:Forum Nav:

CPU bottleneck? - Page 2

post #11 of 51
Quote:
Originally Posted by PunkX 1 View Post

An i7 also gets higher frames than an X4 using a single 5850, so going by your theory, the X4 should be bottlenecking the single 5850 as well?

By definition, that's exactly what a bottleneck is. If anything can be plugged into a system to replace another part and it improves performance, then the older part is a bottleneck. With that said, this forum goes way too overboard discussing bottlenecks. Then, we get new members posting 100 threads a day asking if their cpu is a bottleneck. The answer is almost always yes, but that doesn't mean their cpu/gpu combination isn't a great match. All it means is that something even faster exists that when substituted would offer higher performance, so by definition, it is a bottleneck.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel 2500k Asus P8P67 Galaxy GTX580 8GB G Skill Ripjaws 
Hard DriveOSMonitorKeyboard
Intel 80 gb SSD, Raptor 150 Windows 7 Home Premium 24" Samsung LCD Saitek Eclipse 
PowerCaseMouse
PCP&C 750W Antec P180 Logitech MX-510 blue 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel 2500k Asus P8P67 Galaxy GTX580 8GB G Skill Ripjaws 
Hard DriveOSMonitorKeyboard
Intel 80 gb SSD, Raptor 150 Windows 7 Home Premium 24" Samsung LCD Saitek Eclipse 
PowerCaseMouse
PCP&C 750W Antec P180 Logitech MX-510 blue 
  hide details  
Reply
post #12 of 51
Quote:
Originally Posted by PunkX 1 View Post

I understand very well what bottlenecks are mate.
You obviously didn't read my post correctly, I said that that the reason an i7 gets higher frames in this case is on account of it's much superior architecture and NOT because of an X4 bottlenecking 2x5850s.
An i7 also gets higher frames than an X4 using a single 5850, so going by your theory, the X4 should be bottlenecking the single 5850 as well?
You really have no clue what a bottleneck is.

Yes if the i7 + 5850 provided more FPS the X4 is bottlenecking the 5850. I don't know if this is the case but for the 5850s in CFX the Phenom II is definitely a bottleneck.
post #13 of 51
Quote:
Originally Posted by openureyes View Post

You really have no clue what a bottleneck is.
Yes if the i7 + 5850 provided more FPS the X4 is bottlenecking the 5850. I don't know if this is the case but for the 5850s in CFX the Phenom II is definitely a bottleneck.
Quote:
Originally Posted by sccr64472 View Post

By definition, that's exactly what a bottleneck is. If anything can be plugged into a system to replace another part and it improves performance, then the older part is a bottleneck. With that said, this forum goes way too overboard discussing bottlenecks. Then, we get new members posting 100 threads a day asking if their cpu is a bottleneck. The answer is almost always yes, but that doesn't mean their cpu/gpu combination isn't a great match. All it means is that something even faster exists that when substituted would offer higher performance, so by definition, it is a bottleneck.

If you have to go by the raw, literal meaning, then yeah i agree. I was going by the OP's question and the architectural advantage of an i7. What i meant was that, within the AMD platform, it isn't a bottleneck. Outside of it and in i7 territory? Theoretically, yes. Again, from the architectural standpoint.

So as sccr64472 pointed out, just because an i7 gets higher frames doesn't mean that the 965/2x5850s isn't a great match. It all depends how much of an improvement you want from the system
Edited by PunkX 1 - 12/23/11 at 1:32pm
Kukumonster
(13 items)
 
A pleasant surprise :)
Cooler Master USP 100 Black Edition
Value redefined.
Amd Athlon II X3 435
CPUMotherboardGraphicsRAM
Core i5 2320 Intel DH67BL Sapphire R9 285 Corsair 8GB (4x2)  
Hard DriveHard DriveHard DriveCooling
Kingston HyperX Fury 240GB  WD Blue 1TB Seagate Barracuda 500GB Noctua NH-C14S 
CoolingOSMonitorPower
Noctua NF-A140*2 Windows 10 Pro (TP) LG 22" 1080p  Seasonic G-550 F3 550W 
Case
Cooler Master USP100 Black Edition 
  hide details  
Reply
Kukumonster
(13 items)
 
A pleasant surprise :)
Cooler Master USP 100 Black Edition
Value redefined.
Amd Athlon II X3 435
CPUMotherboardGraphicsRAM
Core i5 2320 Intel DH67BL Sapphire R9 285 Corsair 8GB (4x2)  
Hard DriveHard DriveHard DriveCooling
Kingston HyperX Fury 240GB  WD Blue 1TB Seagate Barracuda 500GB Noctua NH-C14S 
CoolingOSMonitorPower
Noctua NF-A140*2 Windows 10 Pro (TP) LG 22" 1080p  Seasonic G-550 F3 550W 
Case
Cooler Master USP100 Black Edition 
  hide details  
Reply
post #14 of 51
Quote:
Originally Posted by PunkX 1 View Post

4.4-4.5Ghz to eliminate a "bottleneck" with 2x5850s? This statement is of no coherence. By any chance, do you own an Intel rig?
OP, while an i7 IS the obvious better choice for gaming, it gets those extra frames due to the superior architecture and NOT because the 965 is bottlenecking those 5850s. So to answer your primary question, no, the 965 will not bottleneck 2x5850s @ 3.75Ghz.
Keep in mind that it's possible for an X4 to bottleneck 2x6970s and higher, but that doesn't mean it will bottleneck ANY multi-GPU setup. Period.
OP, if i'm wrong, then your CPU usage should be maxed out wit GPU usage not even close to a 100%.

Nicely said. The architecture of the i5/i7 are superior to the phenom's. Switching to a i5/i7, you will definenately see a difference in the overall smoothness in games, even if the FPS is relatively the same.
post #15 of 51
He'll see GPU usage go from 40-75% to 95-90% on both cards by switching to an i7 in a CPU-dependent game like Skyrim.

That's a pretty noticeable difference.

Another example of the Phenom II X4 bottlenecking 5870s in CFX. 5850s are almost as fast in CFX configuration.
Edited by openureyes - 12/23/11 at 1:36pm
post #16 of 51
Keep in mind, the higher the resolution, the less the CPU becomes a factor and more the GPU's become a factor. If you're gaming at a low resolution that's easy for the 5850's to breeze through, then naturally your CPU will be your bottleneck. It's all about balancing your system to your resolution and gaming needs. I don't see a P II bottlenecking 2 5850's though at anything 1680x1050 and above.
    
CPUMotherboardGraphicsRAM
i5-2500k Asrock Extreme 3 Gen 3 Z68 MSI R9 390 8GB Gskill Ripsaw 2x4GB 1600 Mhz 
Hard DriveHard DriveHard DriveOS
500GB 7200RPM 500GB 7200RPM Crucial M500 240GB SSD Windows 7 x64 
MonitorKeyboardPowerCase
22" 1680x1050 Razer Blackwidow Corsair TX650 V2 NZXT Phantom (Black) 
MouseMouse PadAudio
Logitech G9 Icemat V2 Eagle Tech ET-AR504LR-BK 2.1 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i5-2500k Asrock Extreme 3 Gen 3 Z68 MSI R9 390 8GB Gskill Ripsaw 2x4GB 1600 Mhz 
Hard DriveHard DriveHard DriveOS
500GB 7200RPM 500GB 7200RPM Crucial M500 240GB SSD Windows 7 x64 
MonitorKeyboardPowerCase
22" 1680x1050 Razer Blackwidow Corsair TX650 V2 NZXT Phantom (Black) 
MouseMouse PadAudio
Logitech G9 Icemat V2 Eagle Tech ET-AR504LR-BK 2.1 
  hide details  
Reply
post #17 of 51
Quote:
Originally Posted by Allen86 View Post

Keep in mind, the higher the resolution, the less the CPU becomes a factor and more the GPU's become a factor. If you're gaming at a low resolution that's easy for the 5850's to breeze through, then naturally your CPU will be your bottleneck. It's all about balancing your system to your resolution and gaming needs. I don't see a P II bottlenecking 2 5850's though at anything 1680x1050 and above.
Yet, all the evidence says it does. Links please.
post #18 of 51
Every PC has a bottleneck. Many bottlenecks in fact, depending on the app running.

If your framerates are fine, don't think about it. That's the bottom line.
More Cores
(20 items)
 
 
SFF: HADRON
(10 items)
 
CPUMotherboardGraphicsGraphics
i7 3930K @ 4.8Ghz offset ASrock X79 Extreme6/GB EVGA GTX680 FTW with EK waterblock EVGA GTX650 for PhysX 
RAMHard DriveHard DriveHard Drive
G-Skill 4x4GB DDR3 1866 8-9-9-24@1.5V Samsung 840 Pro 128GB Agility 3 240GB x2 RAID 0 WD 500GB X2 RAID 0 
CoolingCoolingCoolingCooling
XSPC Raystorm XSPC Dual Bay reservoir with Alphacool variable... Alphacool NexXxoS UT60 Full Copper Triple 120mm... EK GTX680 FTW waterblock 
OSMonitorPowerCase
Windows 7 64 bit Ultimate HP tSS-25X11LED 25" 1080p PC Power&Cooling Silentpower 910W Xigmatek Elysium 
MouseMouse PadAudioAudio
Razer Deathadder 3500 Rocketfish Creative Sound Core3D Logitech Z5300 
CPUMotherboardGraphicsRAM
960T unlocked to X6 ASUS M4A79XTD Evo Sapphire HD6870 1GB 2x2GB Ripjaws 7-8-7-24 F3-12800CL7D-4GBRM  
Hard DriveHard DriveOptical DriveCooling
Crucial M4 128GB WD 320GB HDD Lite-On DVD-RW Corsair H100 
OSPowerCase
Win 7 x64 Ultimate OCZ Stealthstream 600W HAF XB 
CPUMotherboardGraphicsRAM
3570K P8Z77-I MSI 560 Ti TF2 Samsung 20nm 
Hard DriveCoolingOSMonitor
Crucial M500 Kuhler 620 Windows 7 x64 52" Samsung LED TV 
CaseAudio
EVGA Hadron Air Denon receiver/ Polk audio 
  hide details  
Reply
More Cores
(20 items)
 
 
SFF: HADRON
(10 items)
 
CPUMotherboardGraphicsGraphics
i7 3930K @ 4.8Ghz offset ASrock X79 Extreme6/GB EVGA GTX680 FTW with EK waterblock EVGA GTX650 for PhysX 
RAMHard DriveHard DriveHard Drive
G-Skill 4x4GB DDR3 1866 8-9-9-24@1.5V Samsung 840 Pro 128GB Agility 3 240GB x2 RAID 0 WD 500GB X2 RAID 0 
CoolingCoolingCoolingCooling
XSPC Raystorm XSPC Dual Bay reservoir with Alphacool variable... Alphacool NexXxoS UT60 Full Copper Triple 120mm... EK GTX680 FTW waterblock 
OSMonitorPowerCase
Windows 7 64 bit Ultimate HP tSS-25X11LED 25" 1080p PC Power&Cooling Silentpower 910W Xigmatek Elysium 
MouseMouse PadAudioAudio
Razer Deathadder 3500 Rocketfish Creative Sound Core3D Logitech Z5300 
CPUMotherboardGraphicsRAM
960T unlocked to X6 ASUS M4A79XTD Evo Sapphire HD6870 1GB 2x2GB Ripjaws 7-8-7-24 F3-12800CL7D-4GBRM  
Hard DriveHard DriveOptical DriveCooling
Crucial M4 128GB WD 320GB HDD Lite-On DVD-RW Corsair H100 
OSPowerCase
Win 7 x64 Ultimate OCZ Stealthstream 600W HAF XB 
CPUMotherboardGraphicsRAM
3570K P8Z77-I MSI 560 Ti TF2 Samsung 20nm 
Hard DriveCoolingOSMonitor
Crucial M500 Kuhler 620 Windows 7 x64 52" Samsung LED TV 
CaseAudio
EVGA Hadron Air Denon receiver/ Polk audio 
  hide details  
Reply
post #19 of 51
It seems to me that the OP is just looking for some justification to build an Intel rig. Seems like he already has his mind set on it so the whole bottleneck thing doesn't really matter. rolleyes.gif
Dominus Noctis
(33 items)
 
Sager NP7352
(14 items)
 
 
CPUMotherboardGraphicsRAM
[Intel] i7-4790K @ 4.5GHz [Gigabyte] Z97X-Gaming GT [EVGA] GeForce GTX 980 Ti Superclocked+ ACX 2.0... [G.SKILL] Ripjaws 16GB (4x4GB) @ 1600MHz 
Hard DriveHard DriveOptical DriveCooling
[Samsung] 840 Pro 256GB (OS/Programs/Games) [Western Digital] Caviar Blue 640GB (User Files) [HP] DVD-RW Multi-Recorder Lightscribe [Corsair] H100i Hydro Cooler 
CoolingCoolingCoolingCooling
[Corsair] SP120L High Performance 120mm Radiato... [Corsair] SP120L High Performance 120mm Radiato... [Corsair] SP120 High Performance Edition 120mm ... [Corsair] SP120 High Performance Edition 120mm ... 
CoolingCoolingCoolingOS
[Corsair] 140mm Top Exhaust Fan (White LED) [Corsair] 140mm Top Exhaust Fan (White LED) [Corsair] 140mm Rear Exhaust Fan [Microsoft] Windows 10 Pro (64-Bit) 
MonitorMonitorMonitorKeyboard
[ASUS] VG278HE 27' LED - 1920x1080p@144Hz [ASUS] VE278Q 27' LED - 1920x1080p@60Hz [Acer] H233H 23' LCD - 1920x1080p@30Hz [Corsair] Vengeance K70 (Silver) 
PowerCaseMouseMouse Pad
[Seasonic] X-1250W [Corsair] Carbide Series Air 540 (White) [RAZER] DeathAdder 3.5G [Corsair] MM200 Compact 
AudioAudioAudioAudio
[Schiit] Bifrost (Uber) Digital To Analog Conve... [Schiit] Lyr Headphone Amplifier [Focusrite] Scarlett 2i2 Audio Interface [Sennheiser] HD 650 Headphones 
AudioAudioAudioAudio
[V-MODA] Crossfade M-100 Headphones (Shadow) [KRK] Rokit 6 Studio Monitors [Samson] Q2U Microphone [Novation] Launchkey 25 MIDI Controller 
Other
[Linksys] AE3000 N900 USB Dual Band WiFi Adapter 
CPUMotherboardGraphicsGraphics
[Intel] Core i7-4800MQ @ 2.7GHz [Intel] HM87 Express Chipset [Nvidia] GeForce GTX 765M [Intel] HD Graphics 4600 
RAMHard DriveHard DriveOptical Drive
[Patriot] 16GB (2x8GB) @ 1600MHz [Intel] 525 Series 120GB (OS/Programs) [Seagate] Momentus 750GB (User Files/Games) [Toshiba/Samsung] 8X DVD±R/RW/4X +DL Super-Mult... 
CoolingOSMonitorMouse
[Cooler Master] NotePal U2 PLUS [Microsoft] Windows 10 Home (64-Bit) [Sager] 15.6' LED Display - 1920x1080p@60Hz [Logitech] Anywhere Mouse MX 
AudioAudio
[FiiO] E07K Andes USB DAC/AMP  [V-MODA] Crossfade M-100 Headphones (Shadow) 
  hide details  
Reply
Dominus Noctis
(33 items)
 
Sager NP7352
(14 items)
 
 
CPUMotherboardGraphicsRAM
[Intel] i7-4790K @ 4.5GHz [Gigabyte] Z97X-Gaming GT [EVGA] GeForce GTX 980 Ti Superclocked+ ACX 2.0... [G.SKILL] Ripjaws 16GB (4x4GB) @ 1600MHz 
Hard DriveHard DriveOptical DriveCooling
[Samsung] 840 Pro 256GB (OS/Programs/Games) [Western Digital] Caviar Blue 640GB (User Files) [HP] DVD-RW Multi-Recorder Lightscribe [Corsair] H100i Hydro Cooler 
CoolingCoolingCoolingCooling
[Corsair] SP120L High Performance 120mm Radiato... [Corsair] SP120L High Performance 120mm Radiato... [Corsair] SP120 High Performance Edition 120mm ... [Corsair] SP120 High Performance Edition 120mm ... 
CoolingCoolingCoolingOS
[Corsair] 140mm Top Exhaust Fan (White LED) [Corsair] 140mm Top Exhaust Fan (White LED) [Corsair] 140mm Rear Exhaust Fan [Microsoft] Windows 10 Pro (64-Bit) 
MonitorMonitorMonitorKeyboard
[ASUS] VG278HE 27' LED - 1920x1080p@144Hz [ASUS] VE278Q 27' LED - 1920x1080p@60Hz [Acer] H233H 23' LCD - 1920x1080p@30Hz [Corsair] Vengeance K70 (Silver) 
PowerCaseMouseMouse Pad
[Seasonic] X-1250W [Corsair] Carbide Series Air 540 (White) [RAZER] DeathAdder 3.5G [Corsair] MM200 Compact 
AudioAudioAudioAudio
[Schiit] Bifrost (Uber) Digital To Analog Conve... [Schiit] Lyr Headphone Amplifier [Focusrite] Scarlett 2i2 Audio Interface [Sennheiser] HD 650 Headphones 
AudioAudioAudioAudio
[V-MODA] Crossfade M-100 Headphones (Shadow) [KRK] Rokit 6 Studio Monitors [Samson] Q2U Microphone [Novation] Launchkey 25 MIDI Controller 
Other
[Linksys] AE3000 N900 USB Dual Band WiFi Adapter 
CPUMotherboardGraphicsGraphics
[Intel] Core i7-4800MQ @ 2.7GHz [Intel] HM87 Express Chipset [Nvidia] GeForce GTX 765M [Intel] HD Graphics 4600 
RAMHard DriveHard DriveOptical Drive
[Patriot] 16GB (2x8GB) @ 1600MHz [Intel] 525 Series 120GB (OS/Programs) [Seagate] Momentus 750GB (User Files/Games) [Toshiba/Samsung] 8X DVD±R/RW/4X +DL Super-Mult... 
CoolingOSMonitorMouse
[Cooler Master] NotePal U2 PLUS [Microsoft] Windows 10 Home (64-Bit) [Sager] 15.6' LED Display - 1920x1080p@60Hz [Logitech] Anywhere Mouse MX 
AudioAudio
[FiiO] E07K Andes USB DAC/AMP  [V-MODA] Crossfade M-100 Headphones (Shadow) 
  hide details  
Reply
post #20 of 51
Quote:
Originally Posted by Tman5293 View Post

It seems to me that the OP is just looking for some justification to build an Intel rig. Seems like he already has his mind set on it so the whole bottleneck thing doesn't really matter. rolleyes.gif

I thought so too tongue.gif
Kukumonster
(13 items)
 
A pleasant surprise :)
Cooler Master USP 100 Black Edition
Value redefined.
Amd Athlon II X3 435
CPUMotherboardGraphicsRAM
Core i5 2320 Intel DH67BL Sapphire R9 285 Corsair 8GB (4x2)  
Hard DriveHard DriveHard DriveCooling
Kingston HyperX Fury 240GB  WD Blue 1TB Seagate Barracuda 500GB Noctua NH-C14S 
CoolingOSMonitorPower
Noctua NF-A140*2 Windows 10 Pro (TP) LG 22" 1080p  Seasonic G-550 F3 550W 
Case
Cooler Master USP100 Black Edition 
  hide details  
Reply
Kukumonster
(13 items)
 
A pleasant surprise :)
Cooler Master USP 100 Black Edition
Value redefined.
Amd Athlon II X3 435
CPUMotherboardGraphicsRAM
Core i5 2320 Intel DH67BL Sapphire R9 285 Corsair 8GB (4x2)  
Hard DriveHard DriveHard DriveCooling
Kingston HyperX Fury 240GB  WD Blue 1TB Seagate Barracuda 500GB Noctua NH-C14S 
CoolingOSMonitorPower
Noctua NF-A140*2 Windows 10 Pro (TP) LG 22" 1080p  Seasonic G-550 F3 550W 
Case
Cooler Master USP100 Black Edition 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD CPUs
Overclock.net › Forums › AMD › AMD CPUs › CPU bottleneck?