GeForce GTX 275 vs GeForce GTX 460 2GB

Intro

Compare all of that to the GeForce GTX 460 2GB, which comes with GPU core speed of 675 MHz, and 2048 MB of GDDR5 RAM running at 900 MHz through a 256-bit bus. It also is made up of 336 SPUs, 56 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 2GB		160 Watts
GeForce GTX 275		219 Watts
	Difference: 59 Watts (37%)

Memory Bandwidth

In theory, the GeForce GTX 275 should perform a little bit faster than the GeForce GTX 460 2GB overall. (explain)

GeForce GTX 275		127008 MB/sec
GeForce GTX 460 2GB		115200 MB/sec
	Difference: 11808 (10%)

Texel Rate

The GeForce GTX 275 should be quite a bit (more or less 34%) better at anisotropic filtering than the GeForce GTX 460 2GB. (explain)

GeForce GTX 275		50640 Mtexels/sec
GeForce GTX 460 2GB		37800 Mtexels/sec
	Difference: 12840 (34%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 460 2GB is the winner, by a large margin. (explain)

GeForce GTX 460 2GB		21600 Mpixels/sec
GeForce GTX 275		17724 Mpixels/sec
	Difference: 3876 (22%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.