Radeon HD 7950 vs Radeon R9 M375X

Intro

Compare that to the Radeon R9 M375X, which makes use of a 28 nm design. AMD has set the core frequency at 1015 MHz. The GDDR5 memory runs at a frequency of 1125 MHz on this card. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 7950 should theoretically be a lot faster than the Radeon R9 M375X overall. (explain)

Radeon HD 7950		240000 MB/sec
Radeon R9 M375X		72000 MB/sec
	Difference: 168000 (233%)

Texel Rate

The Radeon HD 7950 should be quite a bit (more or less 121%) more effective at anisotropic filtering than the Radeon R9 M375X. (explain)

Radeon HD 7950		89600 Mtexels/sec
Radeon R9 M375X		40600 Mtexels/sec
	Difference: 49000 (121%)

Pixel Rate

The Radeon HD 7950 should be quite a bit (approximately 58%) more effective at full screen anti-aliasing than the Radeon R9 M375X, and also should be capable of handling higher resolutions without slowing down too much. (explain)

Radeon HD 7950		25600 Mpixels/sec
Radeon R9 M375X		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 largest amount of data (in units of megabytes per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.