GeForce GTX 275 vs GeForce GTX 295

Intro

Compare all that to the GeForce GTX 295, which comes with 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 uses a 55 nm design. It features 240 SPUs, 80 TAUs, and 28 Raster Operation Units.

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

Performance-wise, the GeForce GTX 295 should theoretically be much superior to 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 will be a lot (approximately 82%) faster with regards to 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 running with lots of anti-aliasing is important to you, then the GeForce GTX 295 is a better choice, and very much so. (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 largest amount of information (measured in MB per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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