GeForce GTX 590 vs Radeon R9 M395X

Intro

Compare those specs to the Radeon R9 M395X, which comes with a GPU core clock speed of 723 MHz, and 4096 MB of GDDR5 RAM running at 1250 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X		125 Watts
GeForce GTX 590		365 Watts
	Difference: 240 Watts (192%)

Memory Bandwidth

The GeForce GTX 590, in theory, should be quite a bit faster than the Radeon R9 M395X overall. (explain)

GeForce GTX 590		328320 MB/sec
Radeon R9 M395X		160000 MB/sec
	Difference: 168320 (105%)

Texel Rate

The Radeon R9 M395X should be a small bit (about 19%) more effective at texture filtering than the GeForce GTX 590. (explain)

Radeon R9 M395X		92544 Mtexels/sec
GeForce GTX 590		77696 Mtexels/sec
	Difference: 14848 (19%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 590 is superior to the Radeon R9 M395X, by far. (explain)

GeForce GTX 590		58272 Mpixels/sec
Radeon R9 M395X		23136 Mpixels/sec
	Difference: 35136 (152%)

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 largest amount of data (measured in MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.