Radeon HD 7970 vs Radeon R7 M265

Intro

Compare those specs to the Radeon R7 M265, which features a clock frequency of 725 MHz and a DDR3 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is made up of 384 SPUs, 24 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

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

As far as performance goes, the Radeon HD 7970 should theoretically be quite a bit superior to the Radeon R7 M265 in general. (explain)

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

Texel Rate

The Radeon HD 7970 will be much (more or less 580%) more effective 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 running with a high resolution is important to you, then the Radeon HD 7970 is the winner, by a large margin. (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 largest amount of information (in units of MB per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

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