GeForce GTX 590 vs Radeon R9 M295X

Intro

Compare those specifications to the Radeon R9 M295X, which comes with core speeds of 750 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
GeForce GTX 590		365 Watts
	Difference: 240 Watts (192%)

Memory Bandwidth

Theoretically, the GeForce GTX 590 should be quite a bit faster than the Radeon R9 M295X in general. (explain)

GeForce GTX 590		328320 MB/sec
Radeon R9 M295X		176000 MB/sec
	Difference: 152320 (87%)

Texel Rate

The Radeon R9 M295X is much (approximately 24%) more effective at AF than the GeForce GTX 590. (explain)

Radeon R9 M295X		96000 Mtexels/sec
GeForce GTX 590		77696 Mtexels/sec
	Difference: 18304 (24%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 590 is superior to the Radeon R9 M295X, and very much so. (explain)

GeForce GTX 590		58272 Mpixels/sec
Radeon R9 M295X		24000 Mpixels/sec
	Difference: 34272 (143%)

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 maximum amount of information (measured in MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units of the card by the core 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's 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 rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.