Radeon HD 7870 XT vs Radeon RX 470 4GB

Intro

Compare all that to the Radeon RX 470 4GB, which has a core clock speed of 926 MHz and a GDDR5 memory speed of 1650 MHz. It also makes use of a 256-bit bus, and uses a 14 nm design. It is comprised of 2048 SPUs, 128 TAUs, 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.

Ethereum Mining Hash Rate

Radeon RX 470 4GB		27 Mh/s
Radeon HD 7870 XT		15 Mh/s
	Difference: 12 (80%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
Radeon HD 7870 XT		185 Watts
	Difference: 65 Watts (54%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 470 4GB should be a small bit faster than the Radeon HD 7870 XT in general. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon HD 7870 XT		192000 MB/sec
	Difference: 19200 (10%)

Texel Rate

The Radeon RX 470 4GB should be much (about 33%) faster with regards to texture filtering than the Radeon HD 7870 XT. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon HD 7870 XT		88800 Mtexels/sec
	Difference: 29728 (33%)

Pixel Rate

The Radeon RX 470 4GB will be a small bit (about 0%) better at FSAA than the Radeon HD 7870 XT, and also will be able to handle higher screen resolutions more effectively. (explain)

Radeon RX 470 4GB		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 largest amount of information (counted in MB per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 number of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel 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 ability to reach the max fill rate.