Radeon HD 7870 XT vs Radeon RX 470

Intro

Compare that to the Radeon RX 470, which features core speeds of 926 MHz on the GPU, and 1650 MHz on the 8192 MB of GDDR5 memory. It features 2048 SPUs as well as 128 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 470		11756 points
Radeon HD 7870 XT		6390 points
	Difference: 5366 (84%)

Ethereum Mining Hash Rate

Radeon RX 470		26 Mh/s
Radeon HD 7870 XT		15 Mh/s
	Difference: 11 (73%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon HD 7870 XT		185 Watts
	Difference: 65 Watts (54%)

Memory Bandwidth

Theoretically, the Radeon RX 470 should perform a small bit faster than the Radeon HD 7870 XT overall. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 7870 XT		192000 MB/sec
	Difference: 19200 (10%)

Texel Rate

The Radeon RX 470 will be a lot (about 33%) better at AF than the Radeon HD 7870 XT. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 7870 XT		88800 Mtexels/sec
	Difference: 29728 (33%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 470 is a better choice, though only just barely. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 7870 XT		29600 Mpixels/sec
	Difference: 32 (0%)

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 max amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 can be processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the 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 can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.