GeForce GTX 275 vs GeForce GTX 460 SE

Intro

Compare those specifications to the GeForce GTX 460 SE, which comes with a clock frequency of 650 MHz and a GDDR5 memory speed of 850 MHz. It also uses a 256-bit bus, and makes use of a 40 nm design. It is made up of 288 SPUs, 48 Texture Address Units, and 32 ROPs.

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

In theory, the GeForce GTX 275 should perform a little bit faster than the GeForce GTX 460 SE in general. (explain)

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

Texel Rate

The GeForce GTX 275 is much (about 62%) faster with regards to 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 is just a bit (more or less 17%) more effective at full screen anti-aliasing than the GeForce GTX 275, and also capable of handling higher screen resolutions without losing too much performance. (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 (measured in megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.