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Radeon R7 250X 2GB vs Radeon R9 380 2G

Intro

The Radeon R7 250X 2GB comes with a GPU clock speed of 1000 MHz, and the 2048 MB of GDDR5 memory is set to run at 1125 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 Texture Address Units, and 16 ROPs.

Compare those specs to the Radeon R9 380 2G, which comes with a core clock frequency of 970 MHz and a GDDR5 memory speed of 1425 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB 95 Watts
Radeon R9 380 2G 190 Watts
Difference: 95 Watts (100%)

Memory Bandwidth

The Radeon R9 380 2G, in theory, should be a lot faster than the Radeon R7 250X 2GB in general. (explain)

Radeon R9 380 2G 182400 MB/sec
Radeon R7 250X 2GB 72000 MB/sec
Difference: 110400 (153%)

Texel Rate

The Radeon R9 380 2G will be quite a bit (more or less 172%) faster with regards to AF than the Radeon R7 250X 2GB. (explain)

Radeon R9 380 2G 108640 Mtexels/sec
Radeon R7 250X 2GB 40000 Mtexels/sec
Difference: 68640 (172%)

Pixel Rate

The Radeon R9 380 2G should be quite a bit (more or less 94%) better at FSAA than the Radeon R7 250X 2GB, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 380 2G 31040 Mpixels/sec
Radeon R7 250X 2GB 16000 Mpixels/sec
Difference: 15040 (94%)

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 R7 250X 2GB

Amazon.com

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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.

Specifications

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Model Radeon R7 250X 2GB Radeon R9 380 2G
Manufacturer AMD AMD
Year February 2014 June 2015
Code Name Cape Verde XT Antigua PRO
Memory 2048 MB 2048 MB
Core Speed 1000 MHz 970 MHz
Memory Speed 4500 MHz 5700 MHz
Power (Max TDP) 95 watts 190 watts
Bandwidth 72000 MB/sec 182400 MB/sec
Texel Rate 40000 Mtexels/sec 108640 Mtexels/sec
Pixel Rate 16000 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 640 1792
Texture Mapping Units 40 112
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 1500 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: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the 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 most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon R7 250X 2GB

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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