Radeon HD 7950 3GB vs Radeon R7 M265

Intro

Compare those specs to the Radeon R7 M265, which features GPU core speed of 725 MHz, and 2048 MB of DDR3 RAM set to run at 1000 MHz through a 128-bit bus. It also is made up of 384 SPUs, 24 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 7950 3GB should theoretically perform a lot faster than the Radeon R7 M265 overall. (explain)

Radeon HD 7950 3GB		240000 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 208000 (650%)

Texel Rate

The Radeon HD 7950 3GB will be quite a bit (more or less 415%) better at texture filtering than the Radeon R7 M265. (explain)

Radeon HD 7950 3GB		89600 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 72200 (415%)

Pixel Rate

The Radeon HD 7950 3GB is much (approximately 341%) faster with regards to anti-aliasing than the Radeon R7 M265, and also able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 7950 3GB		25600 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 19800 (341%)

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 data (counted in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is calculated 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 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 card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.