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GeForce GTX 280 vs Radeon R9 380X

Intro

The GeForce GTX 280 features a GPU core speed of 602 MHz, and the 1024 MB of GDDR3 RAM runs at 1107 MHz through a 512-bit bus. It also features 240 Stream Processors, 80 Texture Address Units, and 32 Raster Operation Units.

Compare those specifications to the Radeon R9 380X, which makes use of a 28 nm design. AMD has clocked the core speed at 970 MHz. The GDDR5 memory is set to run at a frequency of 1425 MHz on this model. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380X 190 Watts
GeForce GTX 280 236 Watts
Difference: 46 Watts (24%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 380X should be much faster than the GeForce GTX 280 overall. (explain)

Radeon R9 380X 182400 MB/sec
GeForce GTX 280 141696 MB/sec
Difference: 40704 (29%)

Texel Rate

The Radeon R9 380X will be much (approximately 158%) better at anisotropic filtering than the GeForce GTX 280. (explain)

Radeon R9 380X 124160 Mtexels/sec
GeForce GTX 280 48160 Mtexels/sec
Difference: 76000 (158%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 380X is the winner, and very much so. (explain)

Radeon R9 380X 31040 Mpixels/sec
GeForce GTX 280 19264 Mpixels/sec
Difference: 11776 (61%)

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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GeForce GTX 280

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.

Specifications

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Model GeForce GTX 280 Radeon R9 380X
Manufacturer nVidia AMD
Year June 17, 2008 November 2015
Code Name G200 Tonga XT
Memory 1024 MB 4096 MB
Core Speed 602 MHz 970 MHz
Memory Speed 2214 MHz 5700 MHz
Power (Max TDP) 236 watts 190 watts
Bandwidth 141696 MB/sec 182400 MB/sec
Texel Rate 48160 Mtexels/sec 124160 Mtexels/sec
Pixel Rate 19264 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 240 2048
Texture Mapping Units 80 128
Render Output Units 32 32
Bus Type GDDR3 GDDR5
Bus Width 512-bit 256-bit
Fab Process 65 nm 28 nm
Transistors 1400 million 5000 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 12.0
OpenGL Version OpenGL 3.1 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of 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 one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record 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 - aka 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 280

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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