So the GeForce GTX 480 has a big fat memory partition alright, 1,54 GB of GDDR5 memory which is tied to a 384-bit memory bus that binds to six memory controllers inside the GPU; six memory controllers x 64-bit = 384-bit. This memory is clocked at 924 MHz (= 3696 MHz effective).
For the GeForce GTX 470 that would be five memory controllers x 64-bit = 320-bit. The GTX 470 memory will be clocked at 837 MHz (= 3348 MHz effective).
Core frequencies then. The GeForce GTX 480 will have its core clocked at 700 MHz and its shader processors at 1400 MHz. The GeForce GTX 470 on its end will be clocked lower at 607 MHz on the core and 1215 MHz on the shader processors.
Thesample that Inno3D has submitted follows reference design up-to the smallest freckle, it however does come with a pre-overclock. Not big, but enough to make a small difference. An additional 20 MHz on the core, an extra 40 MHz on the shader domain and affectively you can add 100 MHz on the memory as well.
GeForce GTX 470
GeForce GTX 480 Inno3D
Streaming Multiprocessors (SM)
Graphics Clock (Core)
Shader Processor Clock
Memory Clock / Data rate
837 MHz / 3348 MHz
950 MHz / 3800 MHz
Texture Filtering rate (Bilinear)
1x6-pin PEG, 1x8-pin PEG
Max board power (TDP)
Recommended Power supply
GPU Thermal Threshold
105 degrees C
105 degrees C
So we talked about the core clocks, specifications and memory partitions. Obviously there's a lot more to talk through. Again, for an in-depth explanation of the GF100 architecture please visit this article we wrote earlier this year.
The GeForce GTX 480 comes with both a 6-pin and 8-pin power connector to get enough current and a little spare for overclocking. This boils down as: 8-pin PEG = 150W + 6-pin PEG = 75W + PCIe slot = 75W is 300W available.
Let's head on over to the product gallery and have a closer look at the Inno3D iChill GTX 480 Black edition.
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