Overclock.net › Forums › Graphics Cards › Graphics Cards - General › Why does low res meam more CPU usage?
New Posts  All Forums:Forum Nav:

Why does low res meam more CPU usage? - Page 3

post #21 of 22
Quote:
Originally Posted by Derp;12225476 
Low res doesn't mean more CPU usage. It just means less GPU usage, which means the CPU has more of an impact on performance.

I grant you +1 derp.

I agree with what he's saying.
Das Boot
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 630 3.5ghz Gigabyte GA-880GM-UD2H nVidia 9600GT 512mb 4GB Patriot DDR3 1333MHZ 
Hard DriveOptical DriveOSMonitor
Western Digital 320 GB Samsung DVD/RW Windows 10 Acer 19" WS 1440x900 
KeyboardPowerCaseMouse
USB Keyboard Antec Earthwatts 500 Watts Antec Sonata Logitech usb 
Mouse Pad
None 
  hide details  
Reply
Das Boot
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 630 3.5ghz Gigabyte GA-880GM-UD2H nVidia 9600GT 512mb 4GB Patriot DDR3 1333MHZ 
Hard DriveOptical DriveOSMonitor
Western Digital 320 GB Samsung DVD/RW Windows 10 Acer 19" WS 1440x900 
KeyboardPowerCaseMouse
USB Keyboard Antec Earthwatts 500 Watts Antec Sonata Logitech usb 
Mouse Pad
None 
  hide details  
Reply
post #22 of 22
Quote:
Originally Posted by Derp View Post
Low res doesn't mean more CPU usage. It just means less GPU usage, which means the CPU has more of an impact on performance.
Low res can indeed increase CPU usage if the card is the bottleneck at high res.

Quote:
Originally Posted by Smoblikat View Post
But shouldnt the GPU handle it anyway? Even if the card isnt stressed at all?
CPU has to send frames to the card. At lower res the card can handle more frames.

Quote:
Originally Posted by Smoblikat View Post
i seem to be getting less FPS in games with my HD5850 than i did with my GT240. Any way to fix this? Maybe run a light benchmark in the background?
Adding more load will not improve performance.

If you were CPU bottlenecked before, adding a faster card won't help. Indeed, the 5850 may have drivers that are more CPU dependent, thus lowering performance in such situations.
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
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Graphics Cards - General
Overclock.net › Forums › Graphics Cards › Graphics Cards - General › Why does low res meam more CPU usage?