Radeon HD 5970 vs Radeon RX 570

Intro

Compare all of that to the Radeon RX 570, which features core speeds of 1168 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 570		150 Watts
Radeon HD 5970		294 Watts
	Difference: 144 Watts (96%)

Memory Bandwidth

The Radeon HD 5970, in theory, should perform a bit faster than the Radeon RX 570 in general. (explain)

Radeon HD 5970		256000 MB/sec
Radeon RX 570		229376 MB/sec
	Difference: 26624 (12%)

Texel Rate

The Radeon HD 5970 should be a lot (approximately 55%) more effective at anisotropic filtering than the Radeon RX 570. (explain)

Radeon HD 5970		232000 Mtexels/sec
Radeon RX 570		149504 Mtexels/sec
	Difference: 82496 (55%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 5970 is the winner, by a large margin. (explain)

Radeon HD 5970		92800 Mpixels/sec
Radeon RX 570		37376 Mpixels/sec
	Difference: 55424 (148%)

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 information (in units of MB per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.