Radeon R9 270 vs Radeon RX 470

Intro

Compare those specifications to the Radeon RX 470, which uses a 14 nm design. AMD has clocked the core frequency at 926 MHz. The GDDR5 memory runs at a speed of 1650 MHz on this specific model. 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 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

Theoretically speaking, the Radeon RX 470 should be 18% faster than the Radeon R9 270 in general, because of its greater bandwidth. (explain)

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

Texel Rate

The Radeon RX 470 should be quite a bit (about 65%) more effective at 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

The Radeon RX 470 will be a little bit (more or less 3%) more effective at FSAA than the Radeon R9 270, and also should be able to handle higher resolutions without losing too much performance. (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: Bandwidth is the largest amount of data (in units of MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total texture units 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 most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs 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 fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.