GeForce GTX 275 vs GeForce GTX 460 SE

Intro

Compare all that to the GeForce GTX 460 SE, which has GPU clock speed of 650 MHz, and 1024 MB of GDDR5 memory running at 850 MHz through a 256-bit bus. It also is comprised of 288 Stream Processors, 48 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 SE		150 Watts
GeForce GTX 275		219 Watts
	Difference: 69 Watts (46%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 275 should in theory be just a bit better than the GeForce GTX 460 SE overall. (explain)

GeForce GTX 275		127008 MB/sec
GeForce GTX 460 SE		108800 MB/sec
	Difference: 18208 (17%)

Texel Rate

The GeForce GTX 275 will be much (approximately 62%) better at anisotropic filtering than the GeForce GTX 460 SE. (explain)

GeForce GTX 275		50640 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 19440 (62%)

Pixel Rate

The GeForce GTX 460 SE should be a bit (more or less 17%) better at AA than the GeForce GTX 275, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
GeForce GTX 275		17724 Mpixels/sec
	Difference: 3076 (17%)

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 (counted in megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.