Radeon R9 270 vs Radeon RX 470

Intro

Compare those specs to the Radeon RX 470, which comes with a GPU core 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 Stream Processors, 128 Texture Address Units, 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.

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

Performance-wise, the Radeon RX 470 should in theory be a bit superior to the Radeon R9 270 overall. (explain)

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

Texel Rate

The Radeon RX 470 is quite a bit (approximately 65%) faster with regards to AF than the Radeon R9 270. (explain)

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

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 470 is superior to the Radeon R9 270, but not by far. (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 maximum amount of information (in units of MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 is calculated 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.