Radeon HD 7950 3GB vs Radeon R9 M375

Intro

Compare those specifications to the Radeon R9 M375, which has clock speeds of 1015 MHz on the GPU, and 1100 MHz on the 4096 MB of DDR3 RAM. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 7950 3GB should theoretically be much superior to the Radeon R9 M375 overall. (explain)

Radeon HD 7950 3GB		240000 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 204800 (582%)

Texel Rate

The Radeon HD 7950 3GB should be a lot (about 121%) faster with regards to anisotropic filtering than the Radeon R9 M375. (explain)

Radeon HD 7950 3GB		89600 Mtexels/sec
Radeon R9 M375		40600 Mtexels/sec
	Difference: 49000 (121%)

Pixel Rate

The Radeon HD 7950 3GB should be a lot (about 58%) 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 7950 3GB		25600 Mpixels/sec
Radeon R9 M375		16240 Mpixels/sec
	Difference: 9360 (58%)

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: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's 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 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 reach the max fill rate.