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GeForce GTX 280 vs Radeon R9 380 4G

Intro

The GeForce GTX 280 has a clock speed of 602 MHz and a GDDR3 memory frequency of 1107 MHz. It also uses a 512-bit bus, and uses a 65 nm design. It features 240 SPUs, 80 TAUs, and 32 ROPs.

Compare those specifications to the Radeon R9 380 4G, which has a core clock speed of 970 MHz and a GDDR5 memory frequency of 1425 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It is comprised of 1792 SPUs, 112 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 4G 190 Watts
GeForce GTX 280 236 Watts
Difference: 46 Watts (24%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 380 4G should be 29% quicker than the GeForce GTX 280 overall, due to its higher data rate. (explain)

Radeon R9 380 4G 182400 MB/sec
GeForce GTX 280 141696 MB/sec
Difference: 40704 (29%)

Texel Rate

The Radeon R9 380 4G should be much (approximately 126%) better at texture filtering than the GeForce GTX 280. (explain)

Radeon R9 380 4G 108640 Mtexels/sec
GeForce GTX 280 48160 Mtexels/sec
Difference: 60480 (126%)

Pixel Rate

The Radeon R9 380 4G should be quite a bit (approximately 61%) faster with regards to FSAA than the GeForce GTX 280, and also will be able to handle higher screen resolutions while still performing well. (explain)

Radeon R9 380 4G 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 380 4G

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 380 4G
Manufacturer nVidia AMD
Year June 17, 2008 June 2015
Code Name G200 Antigua PRO
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 108640 Mtexels/sec
Pixel Rate 19264 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 240 1792
Texture Mapping Units 80 112
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 ×16
DirectX Version DirectX 10 DirectX 12.0
OpenGL Version OpenGL 3.1 OpenGL 4.5

Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 processed per second. This is calculated by multiplying the total number 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 280

Amazon.com

Check prices at:

Radeon R9 380 4G

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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