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GeForce GTX 280 vs Radeon R9 380 4G

Intro

The GeForce GTX 280 features a clock speed of 602 MHz and a GDDR3 memory frequency of 1107 MHz. It also uses a 512-bit memory bus, and makes use of a 65 nm design. It is comprised of 240 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Compare those specs to the Radeon R9 380 4G, which makes use of a 28 nm design. AMD has clocked the core speed at 970 MHz. The GDDR5 memory works at a frequency of 1425 MHz on this model. It features 1792 SPUs along with 112 TAUs and 32 Rasterization Operator Units.

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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

Performance-wise, the Radeon R9 380 4G should theoretically be a lot better than the GeForce GTX 280 overall. (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 a lot (approximately 126%) more effective at AF 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 is quite a bit (more or less 61%) more effective at full screen anti-aliasing than the GeForce GTX 280, and should be capable of handling higher screen resolutions without slowing down too much. (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 maximum amount of information (measured in MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - 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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