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Radeon R9 270 vs Radeon R9 380X

Intro

The Radeon R9 270 features clock speeds of 900 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs as well as 80 Texture Address Units and 32 ROPs.

Compare those specifications to the Radeon R9 380X, which features a clock frequency of 970 MHz and a GDDR5 memory frequency of 1425 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It features 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 R9 380X 9519 points
Radeon R9 270 5943 points
Difference: 3576 (60%)

Ethereum Mining Hash Rate

Radeon R9 380X 19 Mh/s
Radeon R9 270 15 Mh/s
Difference: 4 (27%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270 150 Watts
Radeon R9 380X 190 Watts
Difference: 40 Watts (27%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 380X should perform a bit faster than the Radeon R9 270 overall. (explain)

Radeon R9 380X 182400 MB/sec
Radeon R9 270 179200 MB/sec
Difference: 3200 (2%)

Texel Rate

The Radeon R9 380X will be much (approximately 72%) faster with regards to AF than the Radeon R9 270. (explain)

Radeon R9 380X 124160 Mtexels/sec
Radeon R9 270 72000 Mtexels/sec
Difference: 52160 (72%)

Pixel Rate

The Radeon R9 380X will be a little bit (about 8%) more effective at anti-aliasing than the Radeon R9 270, and able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 380X 31040 Mpixels/sec
Radeon R9 270 28800 Mpixels/sec
Difference: 2240 (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 270

Amazon.com

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Radeon R9 380X

Amazon.com

Check prices at:

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 R9 380X
Manufacturer AMD AMD
Year November 2013 November 2015
Code Name Curacao Pro Tonga XT
Memory 2048 MB 4096 MB
Core Speed 900 MHz 970 MHz
Memory Speed 5600 MHz 5700 MHz
Power (Max TDP) 150 watts 190 watts
Bandwidth 179200 MB/sec 182400 MB/sec
Texel Rate 72000 Mtexels/sec 124160 Mtexels/sec
Pixel Rate 28800 Mpixels/sec 31040 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 28 nm
Transistors 2800 million 5000 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: Memory bandwidth is the max amount of data (in units of MB per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher 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 maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel 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 reach the maximum fill rate.

Display Prices

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Radeon R9 270

Amazon.com

Check prices at:

Radeon R9 380X

Amazon.com

Check prices at:

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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