Radeon HD 7870 vs Radeon R7 M260

Intro

Compare all of that to the Radeon R7 M260, which features core clock speeds of 715 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 384 SPUs along with 24 Texture Address Units 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 7870		6230 points
Radeon R7 M260		1120 points
	Difference: 5110 (456%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 7870 should in theory perform quite a bit faster than the Radeon R7 M260 overall. (explain)

Radeon HD 7870		153600 MB/sec
Radeon R7 M260		16000 MB/sec
	Difference: 137600 (860%)

Texel Rate

The Radeon HD 7870 is a lot (about 366%) more effective at texture filtering than the Radeon R7 M260. (explain)

Radeon HD 7870		80000 Mtexels/sec
Radeon R7 M260		17160 Mtexels/sec
	Difference: 62840 (366%)

Pixel Rate

The Radeon HD 7870 should be quite a bit (about 459%) better at AA than the Radeon R7 M260, and also will be capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 7870		32000 Mpixels/sec
Radeon R7 M260		5720 Mpixels/sec
	Difference: 26280 (459%)

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 data (measured in megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, 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 calculated by multiplying the total number of texture units of the card by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.