Radeon R7 250 vs Radeon R7 M260X

Intro

Compare those specifications to the Radeon R7 M260X, which comes with a clock speed of 825 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It features 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R7 250 should be 15% quicker than the Radeon R7 M260X overall, because of its greater bandwidth. (explain)

Radeon R7 250		73600 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 9600 (15%)

Texel Rate

The Radeon R7 250 will be quite a bit (more or less 21%) better at texture filtering than the Radeon R7 M260X. (explain)

Radeon R7 250		24000 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 4200 (21%)

Pixel Rate

The Radeon R7 250 should be much (about 21%) more effective at AA than the Radeon R7 M260X, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R7 250		8000 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 1400 (21%)

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 information (in units of megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics 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 the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.