Radeon HD 7950 3GB vs Radeon RX 470

Intro

Compare all that to the Radeon RX 470, which comes with a core clock frequency of 926 MHz and a GDDR5 memory frequency of 1650 MHz. It also uses a 256-bit bus, and makes use of a 14 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation 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 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 theoretically be a bit better than the Radeon RX 470 overall. (explain)

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

Texel Rate

The Radeon RX 470 is much (more or less 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

The Radeon RX 470 will be just a bit (approximately 16%) faster with regards to anti-aliasing than the Radeon HD 7950 3GB, and also will be capable of handling higher resolutions while still performing well. (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 data (measured in MB per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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