Radeon HD 6950 2GB vs Radeon R7 370 2G

Intro

Compare those specifications to the Radeon R7 370 2G, which has GPU clock speed of 975 MHz, and 2048 MB of GDDR5 memory running at 1400 MHz through a 256-bit bus. It also is made up of 1024 Stream Processors, 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

Theoretically speaking, the Radeon R7 370 2G will be 12% faster than the Radeon HD 6950 2GB in general, due to its higher data rate. (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 will be a bit (approximately 13%) faster with regards to 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 will be a lot (approximately 22%) faster with regards to AA than the Radeon HD 6950 2GB, and should be capable of handling higher screen 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: Memory bandwidth is the max amount of data (counted in MB per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.