Gpu stress tests are generally designed to attempt to overheat the gpu. depending on the particular test, this might or might not use the entire video memory or check its integrity at some point. video memory stress test is specifically designed for this purpose, and it's quite similar to memtest86+. you can test the memory using directx, cuda. In addition, it also leverages furmark’s highly intensive tests to stress the gpu to its extreme. i would say, if you have a high-end graphics card then msi kombustor is among the best tools to stress test gpu. check out msi kombustor (free) 5. occt. while occt is popularly known for stress testing cpu, it can also torture the gpu to its. Just need to find a good stress test for the memory now. i was running benchmarks using unigine superposition, 3dmark time spy/fire strike, metro 2033, rise of the tomb raider, middle earth: shadow of war, the witcher 3 and didn't see any artifacting even at +900mhz on the vram (+950 to +1000mhz clea...