Radeon HD 6970 vs Radeon R9 380 4G

Intro

Compare those specifications to the Radeon R9 380 4G, which comes with core speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 RAM. It features 1792 SPUs as well as 112 TAUs and 32 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 380 4G		8837 points
Radeon HD 6970		3470 points
	Difference: 5367 (155%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 4G		190 Watts
Radeon HD 6970		250 Watts
	Difference: 60 Watts (32%)

Memory Bandwidth

As far as performance goes, the Radeon R9 380 4G should in theory be just a bit superior to the Radeon HD 6970 overall. (explain)

Radeon R9 380 4G		182400 MB/sec
Radeon HD 6970		176000 MB/sec
	Difference: 6400 (4%)

Texel Rate

The Radeon R9 380 4G is much (approximately 29%) better at anisotropic filtering than the Radeon HD 6970. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
Radeon HD 6970		84480 Mtexels/sec
	Difference: 24160 (29%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 380 4G is a better choice, but only just. (explain)

Radeon R9 380 4G		31040 Mpixels/sec
Radeon HD 6970		28160 Mpixels/sec
	Difference: 2880 (10%)

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 largest amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 amount of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units by the core 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 applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount 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 bandwidth is, the lower the potential to get to the maximum fill rate.