Radeon HD 6950 vs Radeon R9 M380

Intro

Compare those specifications to the Radeon R9 M380, which has core clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 memory. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 6950 is 67% faster than the Radeon R9 M380 in general, due to its higher data rate. (explain)

Radeon HD 6950		160000 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 64000 (67%)

Texel Rate

The Radeon HD 6950 should be quite a bit (about 76%) better at AF than the Radeon R9 M380. (explain)

Radeon HD 6950		70400 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 30400 (76%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 6950 is superior to the Radeon R9 M380, by a large margin. (explain)

Radeon HD 6950		25600 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 9600 (60%)

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 data (measured in MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 per second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the 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 most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output 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 max fill rate.