Radeon HD 7950 3GB vs Radeon R9 M365X

Intro

Compare those specs to the Radeon R9 M365X, which has core clock speeds of 925 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 RAM. It features 640 SPUs along with 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 7950 3GB will be 233% quicker than the Radeon R9 M365X overall, due to its greater data rate. (explain)

Radeon HD 7950 3GB		240000 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 168000 (233%)

Texel Rate

The Radeon HD 7950 3GB is a lot (about 142%) faster with regards to anisotropic filtering than the Radeon R9 M365X. (explain)

Radeon HD 7950 3GB		89600 Mtexels/sec
Radeon R9 M365X		37000 Mtexels/sec
	Difference: 52600 (142%)

Pixel Rate

The Radeon HD 7950 3GB will be quite a bit (approximately 73%) more effective at anti-aliasing than the Radeon R9 M365X, and should be capable of handling higher resolutions better. (explain)

Radeon HD 7950 3GB		25600 Mpixels/sec
Radeon R9 M365X		14800 Mpixels/sec
	Difference: 10800 (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: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.