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GeForce GTX 280 vs Radeon R9 380X

Intro

The GeForce GTX 280 features core speeds of 602 MHz on the GPU, and 1107 MHz on the 1024 MB of GDDR3 memory. It features 240 SPUs along with 80 TAUs and 32 ROPs.

Compare those specifications to the Radeon R9 380X, which features core clock speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs along with 128 TAUs and 32 ROPs.

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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

As far as performance goes, the Radeon R9 380X should in theory be quite a bit better than the GeForce GTX 280 in general. (explain)

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

Texel Rate

The Radeon R9 380X will be quite a bit (about 158%) faster with regards to 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

The Radeon R9 380X is much (about 61%) better at AA than the GeForce GTX 280, and will be capable of handling higher resolutions without losing too much performance. (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: Bandwidth is the max amount of information (measured in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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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.

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