Radeon HD 7870 vs Radeon R7 M265

Intro

Compare those specs to the Radeon R7 M265, which has core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 384 SPUs as well as 24 TAUs 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 7870		6230 points
Radeon R7 M265		3256 points
	Difference: 2974 (91%)

Ethereum Mining Hash Rate

Radeon HD 7870		16 Mh/s
Radeon R7 M265		14 Mh/s
	Difference: 2 (14%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 7870 should in theory be a lot better than the Radeon R7 M265 overall. (explain)

Radeon HD 7870		153600 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 121600 (380%)

Texel Rate

The Radeon HD 7870 should be much (about 360%) more effective at texture filtering than the Radeon R7 M265. (explain)

Radeon HD 7870		80000 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 62600 (360%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 7870 is the winner, by far. (explain)

Radeon HD 7870		32000 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 26200 (452%)

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 max amount of information (counted in megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video 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 maximum number 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 worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.