Radeon R7 250X 2GB vs Radeon R7 M260

Intro

Compare those specifications to the Radeon R7 M260, which features a clock frequency of 715 MHz and a DDR3 memory frequency of 1000 MHz. It also features a 64-bit memory bus, and makes use of a 28 nm design. It is made up of 384 SPUs, 24 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R7 250X 2GB will be 350% quicker than the Radeon R7 M260 in general, due to its higher bandwidth. (explain)

Radeon R7 250X 2GB		72000 MB/sec
Radeon R7 M260		16000 MB/sec
	Difference: 56000 (350%)

Texel Rate

The Radeon R7 250X 2GB should be quite a bit (about 133%) better at texture filtering than the Radeon R7 M260. (explain)

Radeon R7 250X 2GB		40000 Mtexels/sec
Radeon R7 M260		17160 Mtexels/sec
	Difference: 22840 (133%)

Pixel Rate

The Radeon R7 250X 2GB is a lot (approximately 180%) better at FSAA than the Radeon R7 M260, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R7 250X 2GB		16000 Mpixels/sec
Radeon R7 M260		5720 Mpixels/sec
	Difference: 10280 (180%)

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 (in units of megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the 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 amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.