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Performance and Games

post #1 of 4
Thread Starter 
I was just wondering, is there an invisible threshold where once you reach a certain framerate, your cards just don't bother using anymore power?
I noticed that, for example, on League of Legends, my old rig (i5 2500k, GTX 570 @ stock), has about 200FPS at max settings, whereas my newer gaming rig (i7 3770k @ 4.4GHz, 2x HD7970 CF @ 1155/1550) only has around 250-350, but when it comes to more stressful games like Crysis 3, my HD 7970s can max it out at aroundabout 50-60fps whereas my GTX 570 is unable to achieve playable framerates on highest settings.

Another example would be world of warcraft, everything completely maxed, where my two OC'd HD 7970s hover around 100-140fps whereas my GTX 570 can achieve 40-100fps.
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Top Gun
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Media PC
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CPUMotherboardGraphicsGraphics
i7 3770k @ 4.4GHz / 1.185V AsRock Z77 Extreme 4 Sapphire Dual-X Radeon HD 7970 @ 1150 / 1550 Sapphire Dual-X Radeon HD 7970 @ 1150 /1550 
RAMHard DriveHard DriveHard Drive
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Seagate Barracuda 2TB (ST200DM001) Atapi iHBS312 Cooler Master Hyper 212 Evo Windows 7 Professional 64 Bit 
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AOC D2757PH 27" Corsair Vengeance K95 Enermax Revolution 85+ 1250w Corsair Obsidian 650D 
MouseMouse PadAudioAudio
Razer Deathadder Razer Goliathus Creative Soundblaster Z Sennheiser HD598 
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Logitech z623 
CPUMotherboardGraphicsRAM
i5 2500k Intel DH67GD Gainward GTX 570 Phantom 16GB DDR3 1333MHz 
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Corsair Force Series 3 Seagate Barracuda 2TB (ST200DM001) Generic Optical Drive Stock Cooler 
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post #2 of 4
Well I will say a lot of game have fps caps as default.

Like source engine games have a default cap of 300fps.

And also many games that are easy to run (like LoL) are most likely going to be cpu bottlenecked, if you even want to call it that when getting 200+ fps. So while you may get 200fps with a gtx 570 and only 50 more fps on a much more powerful 7970, the cpu is most likely what is "holding" the system from rendering 400fps because it just can't keep up with the gpu.

With newer games and maxed out settings your gpu power is going to make much more of a difference because most games won't get into the range where they are being limited by the cpu.
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post #3 of 4
Thread Starter 
Ah... I didn't think that my CPU would bottleneck two HD 7970s...
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i7 3770k @ 4.4GHz / 1.185V AsRock Z77 Extreme 4 Sapphire Dual-X Radeon HD 7970 @ 1150 / 1550 Sapphire Dual-X Radeon HD 7970 @ 1150 /1550 
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G.SKILL Ripjaws 4x8GB (32GB) Samsung 840 EVO 500GB SSD Kingston 240GB SSDNow V+200 Enterprise Seagate SSHD 2TB (ST2000DX001) 
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Seagate Barracuda 2TB (ST200DM001) Atapi iHBS312 Cooler Master Hyper 212 Evo Windows 7 Professional 64 Bit 
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CPUMotherboardGraphicsRAM
i5 2500k Intel DH67GD Gainward GTX 570 Phantom 16GB DDR3 1333MHz 
Hard DriveHard DriveOptical DriveCooling
Corsair Force Series 3 Seagate Barracuda 2TB (ST200DM001) Generic Optical Drive Stock Cooler 
OSMonitorKeyboardPower
Windows 7 Professional 64 Bit Samsung S23B350 Ducky DK2108 Zero Mechanical Keyboard Generic 850w PSU 
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Bitfenix Shinobi Razer Naga Molten Edition Razer Goliathus Creative X-Fi Xtreme Audio 7.1 PCI 
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Top Gun
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Media PC
(16 items)
 
Office Computer
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CPUMotherboardGraphicsGraphics
i7 3770k @ 4.4GHz / 1.185V AsRock Z77 Extreme 4 Sapphire Dual-X Radeon HD 7970 @ 1150 / 1550 Sapphire Dual-X Radeon HD 7970 @ 1150 /1550 
RAMHard DriveHard DriveHard Drive
G.SKILL Ripjaws 4x8GB (32GB) Samsung 840 EVO 500GB SSD Kingston 240GB SSDNow V+200 Enterprise Seagate SSHD 2TB (ST2000DX001) 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 2TB (ST200DM001) Atapi iHBS312 Cooler Master Hyper 212 Evo Windows 7 Professional 64 Bit 
MonitorKeyboardPowerCase
AOC D2757PH 27" Corsair Vengeance K95 Enermax Revolution 85+ 1250w Corsair Obsidian 650D 
MouseMouse PadAudioAudio
Razer Deathadder Razer Goliathus Creative Soundblaster Z Sennheiser HD598 
Audio
Logitech z623 
CPUMotherboardGraphicsRAM
i5 2500k Intel DH67GD Gainward GTX 570 Phantom 16GB DDR3 1333MHz 
Hard DriveHard DriveOptical DriveCooling
Corsair Force Series 3 Seagate Barracuda 2TB (ST200DM001) Generic Optical Drive Stock Cooler 
OSMonitorKeyboardPower
Windows 7 Professional 64 Bit Samsung S23B350 Ducky DK2108 Zero Mechanical Keyboard Generic 850w PSU 
CaseMouseMouse PadAudio
Bitfenix Shinobi Razer Naga Molten Edition Razer Goliathus Creative X-Fi Xtreme Audio 7.1 PCI 
CPUMotherboardGraphicsRAM
Intel i7 2600k Intel DH67GD Gainward GTX 550Ti 8GB DDR3 
Hard DriveHard DriveOSMonitor
Corsair Force Series 3 Western Digital Green 1TB Windows 7 Ultimate x64 Asus VS247H 
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post #4 of 4
Quote:
Originally Posted by Evanlet View Post

Ah... I didn't think that my CPU would bottleneck two HD 7970s...

I mean anything over 120fps (or 60fps for most people) is generally useless. Sure if you are "stuck" at 250fps with a 3770k and you get a faster cpu/overclock higher you might get 275fps but does it really make much of a difference? Technically it is a bottleneck but it doesn't really matter if you have 3-5 times the fps you need to have the game feel smooth.

For the 60-120fps range most likely (99.99% of the time) you will be gpu bound.
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Obsidian Series® 750D Airflow Edition Zowie FK 2 Speed by Surface/Steelseries SX/Steelseries 9HD 
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Core 2 Duo E6750 Asus P5n32-e SLI EVGA 8800gt superclocked @ 750/725 gaming/folding 4gb Fatal!ty ddr2 800 
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64gb SSD Stock Win 7 64 bit Corsair CX500 
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SB goodness
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Core 2 duo
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CPUMotherboardGraphicsRAM
2500k @ 4.6ghz,1.47v 24/7 GIGABYTE GA-P67A-UD4-B3 $200 EVGA GTX 970 SSC @ 1505mhz 16gb 2400 SuperSC DDR3 
Hard DriveCoolingOSPower
960gb Sandisk Ultra II Corsair H100i v2 Windows 7 64-bit SeaSonic X650 Gold 
CaseMouseMouse Pad
Obsidian Series® 750D Airflow Edition Zowie FK 2 Speed by Surface/Steelseries SX/Steelseries 9HD 
CPUMotherboardGraphicsRAM
Core 2 Duo E6750 Asus P5n32-e SLI EVGA 8800gt superclocked @ 750/725 gaming/folding 4gb Fatal!ty ddr2 800 
Hard DriveCoolingOSPower
64gb SSD Stock Win 7 64 bit Corsair CX500 
Case
NZXT 
CPUMotherboardGraphicsRAM
Intel Pentium E6300 MSI G41M4-F GTX 460 2gb A-data ddr2 800 
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150gb raptor Ubuntu 13.04 64-bit Coolmax 520W NZXT 
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