Radeon HD 7970 vs Radeon R7 M265

Intro

Compare all of that to the Radeon R7 M265, which uses a 28 nm design. AMD has set the core frequency at 725 MHz. The DDR3 RAM runs at a frequency of 1000 MHz on this card. It features 384 SPUs as well as 24 TAUs and 8 ROPs.

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 7970		8225 points
Radeon R7 M265		3256 points
	Difference: 4969 (153%)

Ethereum Mining Hash Rate

Radeon HD 7970		21 Mh/s
Radeon R7 M265		14 Mh/s
	Difference: 7 (50%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 7970 is 725% quicker than the Radeon R7 M265 in general, because of its greater bandwidth. (explain)

Radeon HD 7970		264000 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 232000 (725%)

Texel Rate

The Radeon HD 7970 will be a lot (more or less 580%) better at texture filtering than the Radeon R7 M265. (explain)

Radeon HD 7970		118400 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 101000 (580%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 7970 is superior to the Radeon R7 M265, by far. (explain)

Radeon HD 7970		29600 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 23800 (410%)

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: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 get to the maximum fill rate.