Radeon HD 7950 vs Radeon R7 M265

Intro

Compare all that to the Radeon R7 M265, which comes with a core clock speed of 725 MHz and a DDR3 memory frequency of 1000 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 7950		7731 points
Radeon R7 M265		3256 points
	Difference: 4475 (137%)

Ethereum Mining Hash Rate

Radeon HD 7950		21 Mh/s
Radeon R7 M265		14 Mh/s
	Difference: 7 (50%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon HD 7950 should perform quite a bit faster than the Radeon R7 M265 in general. (explain)

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

Texel Rate

The Radeon HD 7950 will be much (approximately 415%) more effective at anisotropic filtering than the Radeon R7 M265. (explain)

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

Pixel Rate

The Radeon HD 7950 should be a lot (approximately 341%) faster with regards to AA than the Radeon R7 M265, and also capable of handling higher resolutions more effectively. (explain)

Radeon HD 7950		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 max amount of data (measured in MB per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour 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 output 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.