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GeForce GTX 280 vs Radeon R9 M295X

Intro

The GeForce GTX 280 uses a 65 nm design. nVidia has set the core speed at 602 MHz. The GDDR3 memory runs at a speed of 1107 MHz on this particular card. It features 240 SPUs as well as 80 TAUs and 32 Rasterization Operator Units.

Compare those specs to the Radeon R9 M295X, which features a GPU core clock speed of 750 MHz, and 4096 MB of GDDR5 memory set to run at 1375 MHz through a 256-bit bus. It also features 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation 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

Theoretically speaking, the Radeon R9 M295X should be 24% quicker than the GeForce GTX 280 overall, because of its higher bandwidth. (explain)

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

Texel Rate

The Radeon R9 M295X is a lot (about 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 (more or less 25%) faster with regards to FSAA than the GeForce GTX 280, and also should be capable of handling higher screen resolutions better. (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: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock 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 is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum 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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