Radeon HD 6950 2GB vs Radeon R7 370 2G

Intro

Compare those specifications to the Radeon R7 370 2G, which comes with a clock speed of 975 MHz and a GDDR5 memory speed of 1400 MHz. It also uses a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 1024 SPUs, 64 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 2G		110 Watts
Radeon HD 6950 2GB		200 Watts
	Difference: 90 Watts (82%)

Memory Bandwidth

Performance-wise, the Radeon R7 370 2G should in theory be just a bit superior to the Radeon HD 6950 2GB overall. (explain)

Radeon R7 370 2G		179200 MB/sec
Radeon HD 6950 2GB		160000 MB/sec
	Difference: 19200 (12%)

Texel Rate

The Radeon HD 6950 2GB should be a little bit (approximately 13%) more effective at anisotropic filtering than the Radeon R7 370 2G. (explain)

Radeon HD 6950 2GB		70400 Mtexels/sec
Radeon R7 370 2G		62400 Mtexels/sec
	Difference: 8000 (13%)

Pixel Rate

The Radeon R7 370 2G should be quite a bit (more or less 22%) faster with regards to AA than the Radeon HD 6950 2GB, and should be able to handle higher resolutions more effectively. (explain)

Radeon R7 370 2G		31200 Mpixels/sec
Radeon HD 6950 2GB		25600 Mpixels/sec
	Difference: 5600 (22%)

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 megabytes per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units 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 applied per second.

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