Radeon HD 7950 vs Radeon RX 480 4GB

Intro

Compare all that to the Radeon RX 480 4GB, which has clock speeds of 1120 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 2304 SPUs along with 144 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.

Zcash Mining Hash Rate

Radeon RX 480 4GB		267 Sol/s
Radeon HD 7950		235 Sol/s
	Difference: 32 (14%)

Ethereum Mining Hash Rate

Radeon RX 480 4GB		25 Mh/s
Radeon HD 7950		21 Mh/s
	Difference: 4 (19%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480 4GB		150 Watts
Radeon HD 7950		200 Watts
	Difference: 50 Watts (33%)

Memory Bandwidth

Performance-wise, the Radeon HD 7950 should in theory be just a bit superior to the Radeon RX 480 4GB in general. (explain)

Radeon HD 7950		240000 MB/sec
Radeon RX 480 4GB		229376 MB/sec
	Difference: 10624 (5%)

Texel Rate

The Radeon RX 480 4GB is much (more or less 80%) better at AF than the Radeon HD 7950. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 71680 (80%)

Pixel Rate

The Radeon RX 480 4GB should be a lot (approximately 40%) faster with regards to FSAA than the Radeon HD 7950, and should be able to handle higher resolutions without losing too much performance. (explain)

Radeon RX 480 4GB		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: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs 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 output 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 get to the max fill rate.