Radeon HD 7950 3GB vs Radeon RX 470

Intro

Compare all of that to the Radeon RX 470, which makes use of a 14 nm design. AMD has set the core speed at 926 MHz. The GDDR5 memory is set to run at a frequency of 1650 MHz on this specific card. It features 2048 SPUs as well as 128 Texture Address Units 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.

Zcash Mining Hash Rate

Radeon RX 470		289 Sol/s
Radeon HD 7950 3GB		229 Sol/s
	Difference: 60 (26%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon HD 7950 3GB		200 Watts
	Difference: 80 Watts (67%)

Memory Bandwidth

Performance-wise, the Radeon HD 7950 3GB should in theory be a small bit superior to the Radeon RX 470 in general. (explain)

Radeon HD 7950 3GB		240000 MB/sec
Radeon RX 470		211200 MB/sec
	Difference: 28800 (14%)

Texel Rate

The Radeon RX 470 is quite a bit (approximately 32%) more effective at anisotropic filtering than the Radeon HD 7950 3GB. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 7950 3GB		89600 Mtexels/sec
	Difference: 28928 (32%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 470 is the winner, but it probably won't make a huge difference. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 7950 3GB		25600 Mpixels/sec
	Difference: 4032 (16%)

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 maximum amount of information (in units of megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 once 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 AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends 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 maximum fill rate.