GeForce GTX 295 vs GeForce GTX 980

Intro

Compare those specs to the GeForce GTX 980, which has clock speeds of 1126 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980		165 Watts
GeForce GTX 295		289 Watts
	Difference: 124 Watts (75%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 980 should theoretically be just a bit superior to the GeForce GTX 295 overall. (explain)

GeForce GTX 980		224000 MB/sec
GeForce GTX 295		223776 MB/sec
	Difference: 224 (0%)

Texel Rate

The GeForce GTX 980 should be much (more or less 56%) better at texture filtering than the GeForce GTX 295. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce GTX 295		92160 Mtexels/sec
	Difference: 51968 (56%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 980 is the winner, by far. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce GTX 295		32256 Mpixels/sec
	Difference: 39808 (123%)

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: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 processed per second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the 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 amount of pixels that the graphics card can 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 Render Output Units by the the core speed of the card. 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 rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.