GeForce GTX 275 vs GeForce GTX 295

Intro

Compare all of that to the GeForce GTX 295, which features a core clock speed of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also makes use of a 448-bit bus, and makes use of a 55 nm design. It features 240 SPUs, 80 Texture Address Units, and 28 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 275		219 Watts
GeForce GTX 295		289 Watts
	Difference: 70 Watts (32%)

Memory Bandwidth

The GeForce GTX 295 should in theory be much faster than the GeForce GTX 275 in general. (explain)

GeForce GTX 295		223776 MB/sec
GeForce GTX 275		127008 MB/sec
	Difference: 96768 (76%)

Texel Rate

The GeForce GTX 295 is a lot (about 82%) more effective at anisotropic filtering than the GeForce GTX 275. (explain)

GeForce GTX 295		92160 Mtexels/sec
GeForce GTX 275		50640 Mtexels/sec
	Difference: 41520 (82%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 295 is a better choice, by a large margin. (explain)

GeForce GTX 295		32256 Mpixels/sec
GeForce GTX 275		17724 Mpixels/sec
	Difference: 14532 (82%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 most pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.