Radeon R9 270 vs Radeon RX 470

Intro

Compare those specifications to the Radeon RX 470, which comes with GPU clock speed of 926 MHz, and 8192 MB of GDDR5 memory set to run at 1650 MHz through a 256-bit bus. It also 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.

3DMark Fire Strike Graphics Score

Radeon RX 470		11756 points
Radeon R9 270		5943 points
	Difference: 5813 (98%)

Ethereum Mining Hash Rate

Radeon RX 470		26 Mh/s
Radeon R9 270		15 Mh/s
	Difference: 11 (73%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon R9 270		150 Watts
	Difference: 30 Watts (25%)

Memory Bandwidth

The Radeon RX 470 should theoretically perform a bit faster than the Radeon R9 270 in general. (explain)

Radeon RX 470		211200 MB/sec
Radeon R9 270		179200 MB/sec
	Difference: 32000 (18%)

Texel Rate

The Radeon RX 470 will be a lot (approximately 65%) faster with regards to texture filtering than the Radeon R9 270. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 46528 (65%)

Pixel Rate

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

Radeon RX 470		29632 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 832 (3%)

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 max amount of data (counted in MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock 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 rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.