GeForce GTX 460 SE vs Radeon RX 580

Intro

Compare those specifications to the Radeon RX 580, which features GPU clock speed of 1257 MHz, and 8192 MB of GDDR5 RAM running at 2000 MHz through a 256-bit bus. It also features 2304 SPUs, 144 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 SE		150 Watts
Radeon RX 580		185 Watts
	Difference: 35 Watts (23%)

Memory Bandwidth

The Radeon RX 580 should in theory be quite a bit faster than the GeForce GTX 460 SE overall. (explain)

Radeon RX 580		262144 MB/sec
GeForce GTX 460 SE		108800 MB/sec
	Difference: 153344 (141%)

Texel Rate

The Radeon RX 580 is much (more or less 480%) more effective at AF than the GeForce GTX 460 SE. (explain)

Radeon RX 580		181008 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 149808 (480%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 580 is a better choice, by far. (explain)

Radeon RX 580		40224 Mpixels/sec
GeForce GTX 460 SE		20800 Mpixels/sec
	Difference: 19424 (93%)

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.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the 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 most pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. 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 lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.