Radeon HD 7950 3GB vs Radeon R7 M265

Intro

Compare those specifications to the Radeon R7 M265, which comes with GPU clock 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 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 7950 3GB should in theory perform quite a bit 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 is quite a bit (about 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 a lot (approximately 341%) faster with regards to AA than the Radeon R7 M265, and also capable of handling higher resolutions without slowing down too much. (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 largest amount of data (counted in megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock 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 output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.