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Radeon R9 270X vs Radeon R9 290

Intro

The Radeon R9 270X features a GPU core clock speed of 1000 MHz, and the 2048 MB of GDDR5 RAM runs at 1400 MHz through a 256-bit bus. It also is comprised of 1280 Stream Processors, 80 Texture Address Units, and 32 ROPs.

Compare that to the Radeon R9 290, which uses a 28 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM runs at a speed of 1250 MHz on this model. It features 2560 SPUs along with 160 Texture Address Units and 64 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 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

As far as performance goes, the Radeon R9 290 should theoretically be quite a bit better 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 will be quite a bit (about 60%) more effective at anisotropic filtering than the Radeon R9 270X. (explain)

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

Pixel Rate

If using 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: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is worked out 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max 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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