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Radeon R9 270 vs Radeon RX 470


Intro

The Radeon R9 270 features a core clock speed of 900 MHz and a GDDR5 memory speed of 1400 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 1280 SPUs, 80 TAUs, and 32 Raster Operation Units.

Compare those specifications to the Radeon RX 470, which has a clock speed of 926 MHz and a GDDR5 memory speed of 1650 MHz. It also features a 256-bit memory bus, and uses a 14 nm design. It is comprised of 2048 SPUs, 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 11810 points
Radeon R9 270 5940 points
Difference: 5870 (99%)

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, in theory, should perform just 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 much (about 65%) more effective at anisotropic 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 using lots of anti-aliasing is important to you, then the Radeon RX 470 is superior to the Radeon R9 270, 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

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Radeon R9 270

Amazon.com

Radeon RX 470

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon R9 270 Radeon RX 470
Manufacturer AMD AMD
Year November 2013 August 2016
Code Name Curacao Pro Polaris 10
Memory 2048 MB 8192 MB
Core Speed 900 MHz 926 MHz
Memory Speed 5600 MHz 6600 MHz
Power (Max TDP) 150 watts 120 watts
Bandwidth 179200 MB/sec 211200 MB/sec
Texel Rate 72000 Mtexels/sec 118528 Mtexels/sec
Pixel Rate 28800 Mpixels/sec 29632 Mpixels/sec
Unified Shaders 1280 2048
Texture Mapping Units 80 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 14 nm
Transistors 2800 million 5700 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon R9 270

Amazon.com

Radeon RX 470

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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