Radeon HD 7950 3GB vs Radeon R9 M370X

Intro

Compare all of that to the Radeon R9 M370X, which uses a 28 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM is set to run at a speed 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

In theory, the Radeon HD 7950 3GB should be 233% quicker than the Radeon R9 M370X overall, due to its higher data rate. (explain)

Radeon HD 7950 3GB		240000 MB/sec
Radeon R9 M370X		72000 MB/sec
	Difference: 168000 (233%)

Texel Rate

The Radeon HD 7950 3GB is quite a bit (more or less 180%) more effective at texture filtering than the Radeon R9 M370X. (explain)

Radeon HD 7950 3GB		89600 Mtexels/sec
Radeon R9 M370X		32000 Mtexels/sec
	Difference: 57600 (180%)

Pixel Rate

The Radeon HD 7950 3GB will be much (approximately 100%) more effective at full screen anti-aliasing than the Radeon R9 M370X, and will be able to handle higher screen resolutions better. (explain)

Radeon HD 7950 3GB		25600 Mpixels/sec
Radeon R9 M370X		12800 Mpixels/sec
	Difference: 12800 (100%)

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 (counted in megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. In the case of 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.