Radeon HD 6950 vs Radeon R9 390X 8G

Intro

Compare those specs to the Radeon R9 390X 8G, which has a clock frequency of 1050 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 512-bit memory bus, and uses a 28 nm design. It is comprised of 2816 SPUs, 176 TAUs, and 64 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 390X 8G		13555 points
Radeon HD 6950		3240 points
	Difference: 10315 (318%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6950		200 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 75 Watts (38%)

Memory Bandwidth

The Radeon R9 390X 8G should in theory be a lot faster than the Radeon HD 6950 in general. (explain)

Radeon R9 390X 8G		384000 MB/sec
Radeon HD 6950		160000 MB/sec
	Difference: 224000 (140%)

Texel Rate

The Radeon R9 390X 8G is quite a bit (about 163%) faster with regards to anisotropic filtering than the Radeon HD 6950. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Radeon HD 6950		70400 Mtexels/sec
	Difference: 114400 (163%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 390X 8G is the winner, by a large margin. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Radeon HD 6950		25600 Mpixels/sec
	Difference: 41600 (163%)

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 maximum amount of information (counted in MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. 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 rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.