Radeon HD 5850 vs Radeon R7 M260

Intro

Compare all that to the Radeon R7 M260, which comes with core clock speeds of 715 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 memory. It features 384 SPUs as well as 24 Texture Address Units and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 5850 is 700% quicker than the Radeon R7 M260 overall, due to its greater data rate. (explain)

Radeon HD 5850		128000 MB/sec
Radeon R7 M260		16000 MB/sec
	Difference: 112000 (700%)

Texel Rate

The Radeon HD 5850 is quite a bit (more or less 204%) better at texture filtering than the Radeon R7 M260. (explain)

Radeon HD 5850		52200 Mtexels/sec
Radeon R7 M260		17160 Mtexels/sec
	Difference: 35040 (204%)

Pixel Rate

The Radeon HD 5850 is much (approximately 306%) faster with regards to anti-aliasing than the Radeon R7 M260, and will be capable of handling higher screen resolutions better. (explain)

Radeon HD 5850		23200 Mpixels/sec
Radeon R7 M260		5720 Mpixels/sec
	Difference: 17480 (306%)

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 moved past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.