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Radeon R9 270X vs Radeon RX 470

Intro

The Radeon R9 270X has a clock speed of 1000 MHz and a GDDR5 memory speed of 1400 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It features 1280 SPUs, 80 TAUs, and 32 ROPs.

Compare those specifications to the Radeon RX 470, which features a core clock frequency of 926 MHz and a GDDR5 memory speed of 1650 MHz. It also uses a 256-bit memory bus, and makes use of a 14 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 32 ROPs.

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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 270X 6590 points
Difference: 5166 (78%)

Zcash Mining Hash Rate

Radeon RX 470 289 Sol/s
Radeon R9 270X 177 Sol/s
Difference: 112 (63%)

Ethereum Mining Hash Rate

Radeon RX 470 26 Mh/s
Radeon R9 270X 18 Mh/s
Difference: 8 (44%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 120 Watts
Radeon R9 270X 180 Watts
Difference: 60 Watts (50%)

Memory Bandwidth

The Radeon RX 470 should in theory be a little bit faster than the Radeon R9 270X overall. (explain)

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

Texel Rate

The Radeon RX 470 should be a lot (approximately 48%) more effective at texture filtering than the Radeon R9 270X. (explain)

Radeon RX 470 118528 Mtexels/sec
Radeon R9 270X 80000 Mtexels/sec
Difference: 38528 (48%)

Pixel Rate

The Radeon R9 270X is a bit (about 8%) more effective at full screen anti-aliasing than the Radeon RX 470, and able to handle higher resolutions better. (explain)

Radeon R9 270X 32000 Mpixels/sec
Radeon RX 470 29632 Mpixels/sec
Difference: 2368 (8%)

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 270X

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 270X Radeon RX 470
Manufacturer AMD AMD
Year October 2013 August 2016
Code Name Curacao XT Polaris 10
Memory 2048 MB 8192 MB
Core Speed 1000 MHz 926 MHz
Memory Speed 5600 MHz 6600 MHz
Power (Max TDP) 180 watts 120 watts
Bandwidth 179200 MB/sec 211200 MB/sec
Texel Rate 80000 Mtexels/sec 118528 Mtexels/sec
Pixel Rate 32000 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 max amount of information (counted in MB per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per 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 - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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Radeon R9 270X

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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