Radeon HD 7870 vs Radeon R7 M265

Intro

Compare those specifications to the Radeon R7 M265, which uses a 28 nm design. AMD has set the core speed at 725 MHz. The DDR3 RAM runs at a speed of 1000 MHz on this card. It features 384 SPUs along with 24 TAUs and 8 Rasterization Operator 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 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

The Radeon HD 7870 should in theory perform quite a bit faster than the Radeon R7 M265 in general. (explain)

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

Texel Rate

The Radeon HD 7870 will be much (more or less 360%) faster with regards to 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 high levels of AA is important to you, then the Radeon HD 7870 is superior to the Radeon R7 M265, by a large margin. (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 largest amount of data (counted in megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.