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GeForce GTX 280 vs Radeon R9 M295X

Intro

The GeForce GTX 280 has core clock 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 Rasterization Operator Units.

Compare those specifications to the Radeon R9 M295X, which features core clock speeds of 750 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X 125 Watts
GeForce GTX 280 236 Watts
Difference: 111 Watts (89%)

Memory Bandwidth

In theory, the Radeon R9 M295X should be 24% quicker than the GeForce GTX 280 overall, because of its greater data rate. (explain)

Radeon R9 M295X 176000 MB/sec
GeForce GTX 280 141696 MB/sec
Difference: 34304 (24%)

Texel Rate

The Radeon R9 M295X will be much (approximately 99%) better at anisotropic filtering than the GeForce GTX 280. (explain)

Radeon R9 M295X 96000 Mtexels/sec
GeForce GTX 280 48160 Mtexels/sec
Difference: 47840 (99%)

Pixel Rate

The Radeon R9 M295X should be much (about 25%) more effective at AA than the GeForce GTX 280, and will be able to handle higher resolutions while still performing well. (explain)

Radeon R9 M295X 24000 Mpixels/sec
GeForce GTX 280 19264 Mpixels/sec
Difference: 4736 (25%)

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 M295X

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 M295X
Manufacturer nVidia AMD
Year June 17, 2008 2014
Code Name G200 Unknown
Memory 1024 MB 4096 MB
Core Speed 602 MHz 750 MHz
Memory Speed 2214 MHz 5500 MHz
Power (Max TDP) 236 watts 125 watts
Bandwidth 141696 MB/sec 176000 MB/sec
Texel Rate 48160 Mtexels/sec 96000 Mtexels/sec
Pixel Rate 19264 Mpixels/sec 24000 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 11.2
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is worked out 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of 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 M295X

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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