The GeForce GTX 660 Ti Review, Feat. EVGA, Zotac, and Gigabyteby Ryan Smith on August 16, 2012 9:00 AM EST
Portal 2 continues the long and proud tradition of Valve’s in-house Source engine. While Source continues to be a DX9 engine, Valve has continued to upgrade it over the years to improve its quality, and combined with their choice of style you’d have a hard time telling it’s over 7 years old at this point. Consequently Portal 2’s performance does get rather high on high-end cards, but we have ways of fixing that…
The GTX 660 Ti is still fast enough for us to use SSAA, so that’s where we’ll focus today. At 1920 it can deliver 94fps with 4x SSAA, and even at 2560 it’s just shy of 60fps. Whatever NVIDIA changed with Kepler to improve its SSAA performance made it a monster here, which is made all the more impressive by the fact that we’re dealing with a memory bandwidth and ROP reduced version. It would appear the biggest bottleneck for SSAA performance here is the shaders, which makes this a near-ideal scenario for the GTX 660 Ti.
Overall the entire Radeon 7900 series falls to the GTX 660 Ti by a greater than 20% margin here, and even the GTX 570 is more than humbled. If NVIDIA could do this on more games then they’d be in an excellent position.