Radeon HD 7950 vs Radeon RX 470

Intro

Compare all of that to the Radeon RX 470, which uses a 14 nm design. AMD has set the core speed at 926 MHz. The GDDR5 RAM works at a speed of 1650 MHz on this specific card. 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 RX 470		11756 points
Radeon HD 7950		7731 points
	Difference: 4025 (52%)

Zcash Mining Hash Rate

Radeon RX 470		289 Sol/s
Radeon HD 7950		235 Sol/s
	Difference: 54 (23%)

Ethereum Mining Hash Rate

Radeon RX 470		26 Mh/s
Radeon HD 7950		21 Mh/s
	Difference: 5 (24%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically speaking, the Radeon HD 7950 should be 14% faster than the Radeon RX 470 overall, due to its greater bandwidth. (explain)

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

Texel Rate

The Radeon RX 470 is a lot (about 32%) better at texture filtering than the Radeon HD 7950. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 470 is a better choice, but it probably won't make a huge difference. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 7950		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 largest amount of data (counted in megabytes per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.