Radeon HD 7870 XT vs Radeon RX 480 4GB

Intro

Compare that to the Radeon RX 480 4GB, which comes with a core clock speed of 1120 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 256-bit memory bus, and uses a 14 nm design. It is made up of 2304 SPUs, 144 TAUs, 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.

Ethereum Mining Hash Rate

Radeon RX 480 4GB		25 Mh/s
Radeon HD 7870 XT		15 Mh/s
	Difference: 10 (67%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480 4GB		150 Watts
Radeon HD 7870 XT		185 Watts
	Difference: 35 Watts (23%)

Memory Bandwidth

The Radeon RX 480 4GB should theoretically perform a little bit faster than the Radeon HD 7870 XT in general. (explain)

Radeon RX 480 4GB		229376 MB/sec
Radeon HD 7870 XT		192000 MB/sec
	Difference: 37376 (19%)

Texel Rate

The Radeon RX 480 4GB is a lot (more or less 82%) faster with regards to texture filtering than the Radeon HD 7870 XT. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
Radeon HD 7870 XT		88800 Mtexels/sec
	Difference: 72480 (82%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 480 4GB is superior to the Radeon HD 7870 XT, by a large margin. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
Radeon HD 7870 XT		29600 Mpixels/sec
	Difference: 6240 (21%)

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 (measured in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 amount of texture map elements (texels) that are processed per second. This figure is calculated 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 video 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 most pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.