The MSI GTX 660 Ti is an overclocked version of the 660 Ti, hence the name Power Edition. The company has pushed the core clock speed up 105MHz from the reference design and given the Boost clock quite a bit of latitude as well. Memory speed is 1,502MHz, just like the reference design and all the cards in this roundup. Keeping the whole things frosty is an elaborate cooler with a funny name—Twin Frozr—that is comprised of two heatpipes embedded into a flat, wide array of aluminum fans. Two decently sized fans squat down on top of the heatsink and do an amazing job of keeping temperatures in check: we never saw the card go above 61C under full load, but it was easily the loudest cooler in this group when run at full load. The fan spun down nicely once the stress was relieved, like a college student exhaling after a tough final exam.
When Nvidia launched its new Kepler architecture earlier this year with the GTX 680, the question on everyone’s minds was what features Nvidia would sacrifice in future cards to hit lower price points. With the arrival of the $299 (base price) GTX 660 Ti we have our answer, and thankfully that answer is "not much!" This card is very close to the blazing-fast GTX 670 (itself a slightly stripped down version of the GK104 GPU from the GTX 680) both in terms of specs and performance. It has the same number of Cuda cores (1,344), texture units (112), and SMX’s (7) as the GTX 670. The only real differences between the GTX 660 Ti and its beefier cousin the GTX 670 are the ROPs (the 660 Ti has 24 to the 670’s 32), the L2 cache (384KB versus 512KB), and the memory bandwidth (192-bit versus 256-bit).
We’ve collected cards from Gigabyte, EVGA and MSI that offer a range of clock speeds, cooling shrouds and price points to see how this new card fares in the heat of battle. Hit "Read More," to, well. Read more.
It seemed like a foregone conclusion that Nvidia's GeForce GTX 660 Ti would be based on the GPU maker's 28nm Kepler architecture, and lest there was any lingering doubt, a Swedish overclocking site got its hands on a spec sheet that seemingly confirms as much. If the information is correct, the GTX 660 Ti is essentially a GTX 670 card with a narrower memory bus (192-bit versus 256-bit). Here's what we know.
Nvidia's GTX 670 delivers almost GTX 680-type frame rates for $100 less, but that doesn't change the fact that we've yet to see a true mid-range card from Nvidia so far this generation. That could be changing soon, however, as sources for two different enthusiast websites have said that the much more mainstream GTX 660 Ti is set to launch about a month from now, midway through August.