This'll be old news for some lucky folks, but NVIDIA has just unveiled the GeForce GTX 670 graphics card. It aims to bring Kepler to gamers who don't have off-shore bank accounts, with a price tag of $399 (or £329 in the UK, and €329 in Europe). What sacrifices will be made to reach that bracket, compared to the flagship GTX 680? A loss of 192 CUDA cores, for starters, plus a slightly slower 915MHz base clock speed, which will no doubt have an impact on benchmarks -- we'll do a review round-up shortly to figure out just how much. Nevertheless, you'll still get the same 28nm chip architecture and 2GB of DDR5 RAM, along with NVIDIA's GPU Boost technology that autonomously overclocks the processor to make use of available headroom. In terms of official performance claims, NVIDIA has chosen to compare its benchmarks to AMD's high-end Radeon HD 7950 and boasts that the GTX 670 comes out on top every time by a margin of 18 to 49 percent. Of course, the war of words is little more than performance art at this point, so stay tuned for independent tests.