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Radeon R9 270X vs Radeon R9 290

Intro

The Radeon R9 270X comes with a GPU clock speed of 1000 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1400 MHz through a 256-bit bus. It also is made up of 1280 SPUs, 80 TAUs, and 32 ROPs.

Compare that to the Radeon R9 290, which has clock speeds of 800 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2560 SPUs as well as 160 TAUs and 64 Rasterization Operator Units.

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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 290 9876 points
Radeon R9 270X 6590 points
Difference: 3286 (50%)

Zcash Mining Hash Rate

Radeon R9 290 283 Sol/s
Radeon R9 270X 177 Sol/s
Difference: 106 (60%)

Ethereum Mining Hash Rate

Radeon R9 290 29 Mh/s
Radeon R9 270X 18 Mh/s
Difference: 11 (61%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X 180 Watts
Radeon R9 290 300 Watts
Difference: 120 Watts (67%)

Memory Bandwidth

The Radeon R9 290 should theoretically be much faster than the Radeon R9 270X in general. (explain)

Radeon R9 290 320000 MB/sec
Radeon R9 270X 179200 MB/sec
Difference: 140800 (79%)

Texel Rate

The Radeon R9 290 is quite a bit (approximately 60%) better at AF than the Radeon R9 270X. (explain)

Radeon R9 290 128000 Mtexels/sec
Radeon R9 270X 80000 Mtexels/sec
Difference: 48000 (60%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 290 is superior to the Radeon R9 270X, by a large margin. (explain)

Radeon R9 290 51200 Mpixels/sec
Radeon R9 270X 32000 Mpixels/sec
Difference: 19200 (60%)

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

Check prices at:

Radeon R9 290

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 270X Radeon R9 290
Manufacturer AMD AMD
Year October 2013 November 2013
Code Name Curacao XT Hawaii PRO
Memory 2048 MB 4096 MB
Core Speed 1000 MHz 800 MHz
Memory Speed 5600 MHz 5000 MHz
Power (Max TDP) 180 watts 300 watts
Bandwidth 179200 MB/sec 320000 MB/sec
Texel Rate 80000 Mtexels/sec 128000 Mtexels/sec
Pixel Rate 32000 Mpixels/sec 51200 Mpixels/sec
Unified Shaders 1280 2560
Texture Mapping Units 80 160
Render Output Units 32 64
Bus Type GDDR5 GDDR5
Bus Width 256-bit 512-bit
Fab Process 28 nm 28 nm
Transistors 2800 million 6200 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - 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

Check prices at:

Radeon R9 290

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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