Ever since consumers realized that the GTX 480 with 480 CUDA Cores was actually a neutered version of a potentially much more powerful card with 512 cores, they have been clamouring to get their hands on such a beast.
Just recently, evidence was shown by EXPreview.com that such a card may actually exist and today benchmarks have been released of what they claim is the 512-core GTX 480.
In a run through 3DMark Vantage, the retail GTX 480 offers a GPU score of 9521, while the 512-core shows off at 10,072, a modest 5.8% improvement.
A Crysis Warhead benchmark showcases similar gains, with the standard 480SP card producing 32.96fps and the 512SP at 34.72fps while on enthusiasts settings (1920×1200 8xAA).
While it may only seem like a minor improvement, it is in line with expectations, given that the only change to the card has been to unlock 32 extra CUDA Cores, with no changes to clock speeds or shaders.
Speculation surrounding how NVIDIA will release the card is still varied, with most expecting that it may be simply slipped into the existing GTX 480 market without any differentiation at the manufacturer level, much like the GTX 260 (216SP).
The most interesting details about the card are still to be revealed however, such as how the change will affect power consumption and heat production.