Radeon HD 7850 vs Radeon R7 M260X

Intro

Compare those specifications to the Radeon R7 M260X, which has GPU core speed of 825 MHz, and 2048 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also is comprised of 384 Stream Processors, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 7850 will be 140% quicker than the Radeon R7 M260X overall, due to its higher bandwidth. (explain)

Radeon HD 7850		153600 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 89600 (140%)

Texel Rate

The Radeon HD 7850 should be a lot (more or less 178%) more effective at texture filtering than the Radeon R7 M260X. (explain)

Radeon HD 7850		55040 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 35240 (178%)

Pixel Rate

The Radeon HD 7850 should be quite a bit (approximately 317%) more effective at FSAA than the Radeon R7 M260X, and also able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 7850		27520 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 20920 (317%)

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 data (measured in megabytes per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum 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 better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.