Radeon HD 7950 vs Radeon RX 480

Intro

Compare all that to the Radeon RX 480, which has core clock speeds of 1120 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 RAM. It features 2304 SPUs along with 144 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 RX 480		13349 points
Radeon HD 7950		7731 points
	Difference: 5618 (73%)

Zcash Mining Hash Rate

Radeon RX 480		280 Sol/s
Radeon HD 7950		235 Sol/s
	Difference: 45 (19%)

Ethereum Mining Hash Rate

Radeon RX 480		27 Mh/s
Radeon HD 7950		21 Mh/s
	Difference: 6 (29%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480		150 Watts
Radeon HD 7950		200 Watts
	Difference: 50 Watts (33%)

Memory Bandwidth

In theory, the Radeon RX 480 should perform just a bit faster than the Radeon HD 7950 in general. (explain)

Radeon RX 480		262144 MB/sec
Radeon HD 7950		240000 MB/sec
	Difference: 22144 (9%)

Texel Rate

The Radeon RX 480 is much (more or less 80%) better at AF than the Radeon HD 7950. (explain)

Radeon RX 480		161280 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 71680 (80%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 480 is a better choice, and very much so. (explain)

Radeon RX 480		35840 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 10240 (40%)

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 (in units of megabytes per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.