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GeForce GTX 285 2GB vs Radeon R9 M395X

Intro

The GeForce GTX 285 2GB comes with a GPU clock speed of 648 MHz, and the 2048 MB of GDDR3 memory is set to run at 1242 MHz through a 512-bit bus. It also features 240 SPUs, 80 TAUs, and 32 ROPs.

Compare those specifications to the Radeon R9 M395X, which features GPU clock speed of 723 MHz, and 4096 MB of GDDR5 RAM set to run at 1250 MHz through a 256-bit bus. It also features 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X 125 Watts
GeForce GTX 285 2GB 204 Watts
Difference: 79 Watts (63%)

Memory Bandwidth

The Radeon R9 M395X, in theory, should be a bit faster than the GeForce GTX 285 2GB in general. (explain)

Radeon R9 M395X 160000 MB/sec
GeForce GTX 285 2GB 158976 MB/sec
Difference: 1024 (1%)

Texel Rate

The Radeon R9 M395X is a lot (more or less 79%) faster with regards to AF than the GeForce GTX 285 2GB. (explain)

Radeon R9 M395X 92544 Mtexels/sec
GeForce GTX 285 2GB 51840 Mtexels/sec
Difference: 40704 (79%)

Pixel Rate

The Radeon R9 M395X is just a bit (more or less 12%) more effective at FSAA than the GeForce GTX 285 2GB, and also capable of handling higher resolutions more effectively. (explain)

Radeon R9 M395X 23136 Mpixels/sec
GeForce GTX 285 2GB 20736 Mpixels/sec
Difference: 2400 (12%)

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 285 2GB

Amazon.com

Check prices at:

Radeon R9 M395X

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 285 2GB Radeon R9 M395X
Manufacturer nVidia AMD
Year January 15, 2009 2015
Code Name G200b Tonga
Memory 2048 MB 4096 MB
Core Speed 648 MHz 723 MHz
Memory Speed 2484 MHz 5000 MHz
Power (Max TDP) 204 watts 125 watts
Bandwidth 158976 MB/sec 160000 MB/sec
Texel Rate 51840 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 20736 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 55 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 max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 2GB

Amazon.com

Check prices at:

Radeon R9 M395X

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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