As always I like to start my testing with a few synthetic benchmarks. 3DMark especially is one of my favorites because it is very optimized in both Nvidia and AMD drivers. It's nice to not have to worry about it being favored too much either way and the repeatability of the results makes it a nice chance to compare from card to card, especially when comparing with the same GPU. In this case, we don’t have the RTX 3090 to compare with sadly so my focus is on how the 3080 Ti Founders Edition compares with the RTX 3080 Founders Edition and the overclocked 3080 Suprim X.
The first round of tests were done in the older Fire Strike benchmark which is a DX11 test. There are three detail levels, performance, extreme, and ultra. The 3080 Ti Founders Edition didn’t do as well here, Nvidia’s latest gen cards have as a whole performed a down compared to AMDs comparable cards when it comes to the Fire Strike tests so the RX 6800 XT was up over the 3080 Ti Founders Edition even with it being a jump in performance over the 3080.
The next two were both based on the Time Spy benchmark. One is the standard test and then there is the extreme detail level. Here the 3080 Ti Founders Edition comes out to shine with these DX12 focused benchmarks. It sits up at the top of the charts with a 9% lead in the base Time Spy over the original 3080 and less with the Time Spy Extreme benchmark with the improvement being 3.5% but it was enough to still stay ahead of the overclocked 3080 Suprim X which did well here. It does make you wonder just how well a 3080 Ti with a similar overclock will do though.
The last test was using the Unigine based Superposition benchmark and I tested at 1080p with medium detail and again at 1080p with the extreme detail setting. In the extreme detail setting the 3080 Ti Founders Edition is once again up at the top with an 8.6% lead over the 3080 FE. The medium detail settings on the other hand are running into a wall with our now aging 3900X in the test bench (updates coming soon).