Radeon HD 6950 vs Radeon R7 370 4G

Intro

Compare those specs to the Radeon R7 370 4G, which comes with a core clock speed of 975 MHz and a GDDR5 memory frequency of 1400 MHz. It also features a 256-bit bus, and makes use of a 28 nm design. It features 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 4G		110 Watts
Radeon HD 6950		200 Watts
	Difference: 90 Watts (82%)

Memory Bandwidth

Performance-wise, the Radeon R7 370 4G should theoretically be a small bit better than the Radeon HD 6950 in general. (explain)

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

Texel Rate

The Radeon HD 6950 is a bit (more or less 13%) more effective at 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 should be a lot (more or less 22%) better at anti-aliasing than the Radeon HD 6950, and also should be capable of handling higher screen resolutions more effectively. (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: Bandwidth is the max amount of data (measured in megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 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 anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.