Radeon HD 5970 vs Radeon R9 M375

Intro

Compare those specs to the Radeon R9 M375, which uses a 28 nm design. AMD has set the core frequency at 1015 MHz. The DDR3 RAM works at a frequency of 1100 MHz on this card. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 5970 will be 627% quicker than the Radeon R9 M375 in general, due to its higher data rate. (explain)

Radeon HD 5970		256000 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 220800 (627%)

Texel Rate

The Radeon HD 5970 will be a lot (about 471%) better at texture filtering than the Radeon R9 M375. (explain)

Radeon HD 5970		232000 Mtexels/sec
Radeon R9 M375		40600 Mtexels/sec
	Difference: 191400 (471%)

Pixel Rate

The Radeon HD 5970 is quite a bit (more or less 471%) faster with regards to AA than the Radeon R9 M375, and also should be able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 5970		92800 Mpixels/sec
Radeon R9 M375		16240 Mpixels/sec
	Difference: 76560 (471%)

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 data (counted in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.