![]() The whole boosting and monitoring process is controlled by Nvidia’s GeForce driver and cannot be disabled bad news for benchmarkers, but good for end users who can sit knowing their GPU is boosting performance automatically. While this only equates to a minor 2-3% variation, it’s still an appreciable difference. AMD Radeon HD 7970 GHz Edition, we took a Zotac GeForce GTX 680 2GB AMP Edition (we’ll tell you more about this card in an upcoming review) and a Sapphire Radeon HD 7970 OC 3GB. We’ve observed our review sample boosting to 1,110MHz at the start of a benchmark, then only boosting to 1,084MHz after several minutes of looping the test, indicating that operating temperatures above 50☌ in particular can a limiting factor. To carry out a comparative test of Nvidia GeForce GTX 680 vs. ![]() Oddly though, differences in silicon mean that there’s no guarantee that two GTX 680 2GBs, even with an identical SKU, will perform the same – one might be happy to boost right up to 1,110MHz, while the other could be stubborn and only boost to 1,058MHz due to higher operating temperatures or a lower quality GPU.Ī number of factors influence a card’s level of GPU Boost, but primarily it’s down to measured power draw and GPU temperature. Click to enlarge - GPU Boost is a big deal, increasing performance when there's extra power to spareĮvery GTX 680 2GB is guaranteed to boost up to at least 1,058MHz, but we’ve seen our review sample reach the top of its boost curve at 1,110MHz, which Nvidia has told us is the maximum the stock card can boost to.
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