Radeon HD 6950 2GB vs Radeon R7 370 4G

Intro

Compare those specs to the Radeon R7 370 4G, which features a core clock speed of 975 MHz and a GDDR5 memory frequency of 1400 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It features 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 4G		110 Watts
Radeon HD 6950 2GB		200 Watts
	Difference: 90 Watts (82%)

Memory Bandwidth

The Radeon R7 370 4G should in theory be a small bit faster than the Radeon HD 6950 2GB in general. (explain)

Radeon R7 370 4G		179200 MB/sec
Radeon HD 6950 2GB		160000 MB/sec
	Difference: 19200 (12%)

Texel Rate

The Radeon HD 6950 2GB will be just a bit (about 13%) more effective at AF than the Radeon R7 370 4G. (explain)

Radeon HD 6950 2GB		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 anti-aliasing than the Radeon HD 6950 2GB, and also should be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon R7 370 4G		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 information (counted in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units of the card by the core clock 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number 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 outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.