Radeon HD 6950 vs Radeon R7 370 4G

Intro

Compare those specifications to the Radeon R7 370 4G, which has clock speeds of 975 MHz on the GPU, and 1400 MHz on the 4096 MB of GDDR5 RAM. It features 1024 SPUs along with 64 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 4G		110 Watts
Radeon HD 6950		200 Watts
	Difference: 90 Watts (82%)

Memory Bandwidth

As far as performance goes, the Radeon R7 370 4G should in theory be a little bit better than the Radeon HD 6950 overall. (explain)

Radeon R7 370 4G		179200 MB/sec
Radeon HD 6950		160000 MB/sec
	Difference: 19200 (12%)

Texel Rate

The Radeon HD 6950 will be a little bit (approximately 13%) faster with regards to anisotropic filtering than the Radeon R7 370 4G. (explain)

Radeon HD 6950		70400 Mtexels/sec
Radeon R7 370 4G		62400 Mtexels/sec
	Difference: 8000 (13%)

Pixel Rate

The Radeon R7 370 4G will be quite a bit (about 22%) better at full screen anti-aliasing than the Radeon HD 6950, and also will be capable of handling higher screen resolutions better. (explain)

Radeon R7 370 4G		31200 Mpixels/sec
Radeon HD 6950		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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.