Massman's 3D on LN2 setup
|CPU|| Intel Core i5 750|
|Cooling||Cooler Master V8|
KingpinCooling NB-1 LN2 container
|Videocard||LeadTek Winfast GT220 1GB|
|Memory|| 2x 2GB OCZ Platinum|
|Storage|| Western Digital 250GB|
|Chassis|| Cooler Master Lab Test Bench|
|PSU|| Antec TruePower 1KW|
Before we start the actual extreme overclocking, it's important to find out what gives us the biggest increase in performance. Therefore, I removed the stock cooling of the card, switched to a more performing Zalman GPU Cooler sample, increase the voltage just a bit and started testing the frequencies using the 3DMark2001SE Nature subtest as reference benchmark. Although this benchmark is already 8, almost 9, years old, the Nature subtest still gives a good impression of the performance of a video card. Note that you could in fact use any benchmark to test scaling; as long as the difference in performance is significant enough, all that matters is the difference itself. Not the actual FPS.
First up, GPU scaling. This includes increasing the core frequency and
the shader frequency, which is linked to the core.
As you can see, a significant increase of the core/shader frequency is, well, almost redundant. The performance doesn't really increase and what we feared from the beginning (low-end card thus memory bottlenecked) may very well be true.
Let's have a look at the memory overclocking performance scaling.
And, yes, our assumption turned out to be correct. This card is so heavily stripped from all of its features (48 shaders, 2 rops, 128-bit memory) that the real bottleneck has been re-located to the memory rather than the core. A pity, because this means that we will need a lot of luck to have well-clocking memory. On the previous page, you already saw that the memory isn't really high-end.
Let's hope for the best and go on to the overclocking results ->