Radeon HD 7850 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 speed at 725 MHz. The DDR3 memory is set to run at a speed of 1000 MHz on this particular model. It features 384 SPUs along with 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 7850		5200 points
Radeon R7 M265		3256 points
	Difference: 1944 (60%)

Ethereum Mining Hash Rate

Radeon R7 M265		14 Mh/s
Radeon HD 7850		13 Mh/s
	Difference: 1 (8%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 7850 will be 380% faster than the Radeon R7 M265 overall, due to its higher data rate. (explain)

Radeon HD 7850		153600 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 121600 (380%)

Texel Rate

The Radeon HD 7850 should be quite a bit (more or less 216%) better at texture filtering than the Radeon R7 M265. (explain)

Radeon HD 7850		55040 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 37640 (216%)

Pixel Rate

The Radeon HD 7850 is much (approximately 374%) better at full screen anti-aliasing than the Radeon R7 M265, and also able to handle higher screen resolutions better. (explain)

Radeon HD 7850		27520 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 21720 (374%)

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 information (in units of megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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 potential to reach the max fill rate.