Radeon HD 7950 vs Radeon R9 380X

Intro

Compare those specs to the Radeon R9 380X, which features core clock speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs as well as 128 Texture Address Units 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 380X		9519 points
Radeon HD 7950		7731 points
	Difference: 1788 (23%)

Ethereum Mining Hash Rate

Radeon HD 7950		21 Mh/s
Radeon R9 380X		19 Mh/s
	Difference: 2 (11%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380X		190 Watts
Radeon HD 7950		200 Watts
	Difference: 10 Watts (5%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7950 should in theory be quite a bit better than the Radeon R9 380X in general. (explain)

Radeon HD 7950		240000 MB/sec
Radeon R9 380X		182400 MB/sec
	Difference: 57600 (32%)

Texel Rate

The Radeon R9 380X will be quite a bit (approximately 39%) faster with regards to texture filtering than the Radeon HD 7950. (explain)

Radeon R9 380X		124160 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 34560 (39%)

Pixel Rate

The Radeon R9 380X should be a lot (more or less 21%) faster with regards to FSAA than the Radeon HD 7950, and also capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 380X		31040 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 5440 (21%)

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 max amount of data (measured in MB per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling 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 the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.