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Hey guys, I just attempted my first major OC on my GPU. I know that the GT640 is so underpowered that it's not really worth OC'ing in the first place, but I got bored and tried it anyways. The programs I used to measure/tweak are: EVGA PrecisionX, GPU Caps Viewer, and Furmark. So as far as 640's go, is this a good overclock?

Full Desktop Screenshot with all numbers/speeds/clocks/etc.


Closeup of PrecisionX clocks


Voltage Used for all tests


Furmark 15min 1920x1080 Burn-In results


So what do you think? Is this good for the card? Can I go any higher? (BTW none of the tests that I ran had any signs of artifacting, I tried to keep the mem clock low and the core voltage high to prevent this. Is that a good strategy to keep artifacting at bay?) It would be great if you guys could give me tips on how to achieve better clocks (If these aren't up to snuff). I'm new to this and would love to learn how to do this cleaner, because I'm sure I'm doing something harder than I need to. Thanks guys!thumbsupsmiley.png
Cherenkov
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775_Resurrection
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Streambox
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CPUMotherboardGraphicsRAM
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CPUMotherboardGraphicsRAM
Core 2 Duo E8600 Foxconn G33M02 Gigabyte Geforce GT 430 Assorted DDR2 Memory (8.0GB) 
Hard DriveOptical DriveCoolingOS
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Cherenkov
(17 items)
 
775_Resurrection
(16 items)
 
Streambox
(11 items)
 
CPUMotherboardGraphicsRAM
Intel Xeon X5472 ASUS P5G41T-M LX PLUS AMD Radeon HD 5670 Crucial Ballistix Sport 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 9VY4D25R Generic DVD Drive Cooler Master Hyper T4 Windows 7 Home Premium 64-Bit 
MonitorKeyboardPowerCase
HP 17" LCD Flatscreen Standard Inland Keyboard Wintech 350W Junk PSU  Antec VSK-4000E 
MouseMouse PadAudioOther
Generic Dell Mouse Mah Desk :D Realtek HD Socket 771 -> 775 Adapter Sticker 
CPUMotherboardGraphicsRAM
Core 2 Duo E8600 Foxconn G33M02 Gigabyte Geforce GT 430 Assorted DDR2 Memory (8.0GB) 
Hard DriveOptical DriveCoolingOS
320GB WD Caviar DVD-RW Drive Cooler Master Aluminum Heastink Windows 7 Home Premium 
MonitorCaseAudio
Samsung 55" HDTV Dell Inspiron 530s Onkyo HT-S3500 
  hide details  
Reply