Radeon HD 7970 vs Radeon R9 380 2G

Intro

Compare those specs to the Radeon R9 380 2G, which features core speeds of 970 MHz on the GPU, and 1425 MHz on the 2048 MB of GDDR5 RAM. It features 1792 SPUs as well as 112 TAUs and 32 Rasterization Operator Units.

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 2G		8850 points
Radeon HD 7970		8225 points
	Difference: 625 (8%)

Ethereum Mining Hash Rate

Radeon HD 7970		21 Mh/s
Radeon R9 380 2G		19 Mh/s
	Difference: 2 (11%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 2G		190 Watts
Radeon HD 7970		250 Watts
	Difference: 60 Watts (32%)

Memory Bandwidth

The Radeon HD 7970, in theory, should be quite a bit faster than the Radeon R9 380 2G in general. (explain)

Radeon HD 7970		264000 MB/sec
Radeon R9 380 2G		182400 MB/sec
	Difference: 81600 (45%)

Texel Rate

The Radeon HD 7970 should be a small bit (more or less 9%) more effective at texture filtering than the Radeon R9 380 2G. (explain)

Radeon HD 7970		118400 Mtexels/sec
Radeon R9 380 2G		108640 Mtexels/sec
	Difference: 9760 (9%)

Pixel Rate

The Radeon R9 380 2G will be a small bit (more or less 5%) better at AA than the Radeon HD 7970, and also should be capable of handling higher resolutions better. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
Radeon HD 7970		29600 Mpixels/sec
	Difference: 1440 (5%)

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 (counted in MB per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core 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 processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.