Radeon HD 6970 vs Radeon R9 M375

Intro

Compare those specs to the Radeon R9 M375, which features a clock speed of 1015 MHz and a DDR3 memory speed of 1100 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 6970 should in theory be quite a bit better than the Radeon R9 M375 in general. (explain)

Radeon HD 6970		176000 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 140800 (400%)

Texel Rate

The Radeon HD 6970 should be much (more or less 108%) faster with regards to anisotropic filtering than the Radeon R9 M375. (explain)

Radeon HD 6970		84480 Mtexels/sec
Radeon R9 M375		40600 Mtexels/sec
	Difference: 43880 (108%)

Pixel Rate

The Radeon HD 6970 is much (approximately 73%) faster with regards to anti-aliasing than the Radeon R9 M375, and should be able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 6970		28160 Mpixels/sec
Radeon R9 M375		16240 Mpixels/sec
	Difference: 11920 (73%)

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 largest amount of data (in units of 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, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 are processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, 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 most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes 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, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.