Radeon HD 6950 2GB vs Radeon R7 M260

Intro

Compare those specifications to the Radeon R7 M260, which uses a 28 nm design. AMD has set the core speed at 715 MHz. The DDR3 memory works at a frequency of 1000 MHz on this specific model. It features 384 SPUs along with 24 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 6950 2GB should be much faster than the Radeon R7 M260 overall. (explain)

Radeon HD 6950 2GB		160000 MB/sec
Radeon R7 M260		16000 MB/sec
	Difference: 144000 (900%)

Texel Rate

The Radeon HD 6950 2GB will be quite a bit (about 310%) more effective at AF than the Radeon R7 M260. (explain)

Radeon HD 6950 2GB		70400 Mtexels/sec
Radeon R7 M260		17160 Mtexels/sec
	Difference: 53240 (310%)

Pixel Rate

The Radeon HD 6950 2GB should be a lot (more or less 348%) more effective at anti-aliasing than the Radeon R7 M260, and also will be able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 6950 2GB		25600 Mpixels/sec
Radeon R7 M260		5720 Mpixels/sec
	Difference: 19880 (348%)

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 largest amount of information (in units of megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at 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 could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.