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GeForce GTX 280 vs Radeon R9 M390X

Intro

The GeForce GTX 280 makes use of a 65 nm design. nVidia has set the core frequency at 602 MHz. The GDDR3 memory is set to run at a speed of 1107 MHz on this particular model. It features 240 SPUs along with 80 Texture Address Units and 32 ROPs.

Compare all of that to the Radeon R9 M390X, which has a core clock speed of 723 MHz and a GDDR5 memory speed of 1250 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M390X 125 Watts
GeForce GTX 280 236 Watts
Difference: 111 Watts (89%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M390X will be 13% quicker than the GeForce GTX 280 overall, because of its greater bandwidth. (explain)

Radeon R9 M390X 160000 MB/sec
GeForce GTX 280 141696 MB/sec
Difference: 18304 (13%)

Texel Rate

The Radeon R9 M390X should be a lot (approximately 92%) better at anisotropic filtering than the GeForce GTX 280. (explain)

Radeon R9 M390X 92544 Mtexels/sec
GeForce GTX 280 48160 Mtexels/sec
Difference: 44384 (92%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M390X is superior to the GeForce GTX 280, though only just barely. (explain)

Radeon R9 M390X 23136 Mpixels/sec
GeForce GTX 280 19264 Mpixels/sec
Difference: 3872 (20%)

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 M390X

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 M390X
Manufacturer nVidia AMD
Year June 17, 2008 2015
Code Name G200 Tonga
Memory 1024 MB 4096 MB
Core Speed 602 MHz 723 MHz
Memory Speed 2214 MHz 5000 MHz
Power (Max TDP) 236 watts 125 watts
Bandwidth 141696 MB/sec 160000 MB/sec
Texel Rate 48160 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 19264 Mpixels/sec 23136 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 (Unknown) million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 12
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better 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 can be applied in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 280

Amazon.com

Check prices at:

Radeon R9 M390X

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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