Radeon HD 6970 vs Radeon R9 M380

Intro

Compare those specifications to the Radeon R9 M380, which has GPU core speed of 1000 MHz, and 4096 MB of GDDR5 RAM set to run at 1500 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 6970 should in theory be much faster than the Radeon R9 M380 overall. (explain)

Radeon HD 6970		176000 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 80000 (83%)

Texel Rate

The Radeon HD 6970 will be much (about 111%) faster with regards to texture filtering than the Radeon R9 M380. (explain)

Radeon HD 6970		84480 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 44480 (111%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 6970 is a better choice, by far. (explain)

Radeon HD 6970		28160 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 12160 (76%)

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 information (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.