Radeon HD 5970 vs Radeon R9 M390X

Intro

Compare that to the Radeon R9 M390X, which has core speeds of 723 MHz on the GPU, and 1250 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 R9 M390X		125 Watts
Radeon HD 5970		294 Watts
	Difference: 169 Watts (135%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5970 should be much faster than the Radeon R9 M390X in general. (explain)

Radeon HD 5970		256000 MB/sec
Radeon R9 M390X		160000 MB/sec
	Difference: 96000 (60%)

Texel Rate

The Radeon HD 5970 will be a lot (more or less 151%) faster with regards to anisotropic filtering than the Radeon R9 M390X. (explain)

Radeon HD 5970		232000 Mtexels/sec
Radeon R9 M390X		92544 Mtexels/sec
	Difference: 139456 (151%)

Pixel Rate

The Radeon HD 5970 will be quite a bit (about 301%) faster with regards to anti-aliasing than the Radeon R9 M390X, and also should be capable of handling higher resolutions while still performing well. (explain)

Radeon HD 5970		92800 Mpixels/sec
Radeon R9 M390X		23136 Mpixels/sec
	Difference: 69664 (301%)

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: Bandwidth is the max amount of information (counted in megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could 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 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.