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Radeon R9 290X vs Radeon R9 380 2G

Intro

The Radeon R9 290X comes with a GPU core clock speed of 800 MHz, and the 4096 MB of GDDR5 RAM runs at 1250 MHz through a 512-bit bus. It also features 2816 Stream Processors, 176 TAUs, and 64 ROPs.

Compare those specs to the Radeon R9 380 2G, which features a GPU core clock speed of 970 MHz, and 2048 MB of GDDR5 RAM set to run at 1425 MHz through a 256-bit bus. It also is comprised of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation 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 290X 10609 points
Radeon R9 380 2G 8850 points
Difference: 1759 (20%)

Ethereum Mining Hash Rate

Radeon R9 290X 29 Mh/s
Radeon R9 380 2G 19 Mh/s
Difference: 10 (53%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 2G 190 Watts
Radeon R9 290X 300 Watts
Difference: 110 Watts (58%)

Memory Bandwidth

Theoretically, the Radeon R9 290X should be quite a bit faster than the Radeon R9 380 2G in general. (explain)

Radeon R9 290X 320000 MB/sec
Radeon R9 380 2G 182400 MB/sec
Difference: 137600 (75%)

Texel Rate

The Radeon R9 290X is quite a bit (about 30%) more effective at texture filtering than the Radeon R9 380 2G. (explain)

Radeon R9 290X 140800 Mtexels/sec
Radeon R9 380 2G 108640 Mtexels/sec
Difference: 32160 (30%)

Pixel Rate

The Radeon R9 290X is a lot (approximately 65%) faster with regards to anti-aliasing than the Radeon R9 380 2G, and should be able to handle higher screen resolutions more effectively. (explain)

Radeon R9 290X 51200 Mpixels/sec
Radeon R9 380 2G 31040 Mpixels/sec
Difference: 20160 (65%)

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 290X

Amazon.com

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Radeon R9 380 2G

Amazon.com

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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 290X Radeon R9 380 2G
Manufacturer AMD AMD
Year October 2013 June 2015
Code Name Hawaii XT Antigua PRO
Memory 4096 MB 2048 MB
Core Speed 800 MHz 970 MHz
Memory Speed 5000 MHz 5700 MHz
Power (Max TDP) 300 watts 190 watts
Bandwidth 320000 MB/sec 182400 MB/sec
Texel Rate 140800 Mtexels/sec 108640 Mtexels/sec
Pixel Rate 51200 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 2816 1792
Texture Mapping Units 176 112
Render Output Units 64 32
Bus Type GDDR5 GDDR5
Bus Width 512-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 6200 million 5000 million
Bus PCIe 3.0 x16 PCIe 3.0 ×16
DirectX Version DirectX 11.2 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon R9 290X

Amazon.com

Check prices at:

Radeon R9 380 2G

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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