Radeon HD 6970 vs Radeon R9 M265X

Intro

Compare that to the Radeon R9 M265X, which makes use of a 28 nm design. AMD has clocked the core speed at 575 MHz. The GDDR5 memory works at a speed of 1125 MHz on this particular model. It features 640 SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 6970 will be 144% faster than the Radeon R9 M265X overall, due to its greater bandwidth. (explain)

Radeon HD 6970		176000 MB/sec
Radeon R9 M265X		72000 MB/sec
	Difference: 104000 (144%)

Texel Rate

The Radeon HD 6970 will be much (approximately 267%) faster with regards to anisotropic filtering than the Radeon R9 M265X. (explain)

Radeon HD 6970		84480 Mtexels/sec
Radeon R9 M265X		23000 Mtexels/sec
	Difference: 61480 (267%)

Pixel Rate

The Radeon HD 6970 will be a lot (more or less 206%) better at anti-aliasing than the Radeon R9 M265X, and capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon HD 6970		28160 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 18960 (206%)

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 data (counted in MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 are processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.