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GeForce GTX 285 2GB vs Radeon HD 5850

Intro

The GeForce GTX 285 2GB has core speeds of 648 MHz on the GPU, and 1242 MHz on the 2048 MB of GDDR3 memory. It features 240 SPUs along with 80 Texture Address Units and 32 ROPs.

Compare that to the Radeon HD 5850, which uses a 40 nm design. AMD has clocked the core speed at 725 MHz. The GDDR5 RAM works at a frequency of 1000 MHz on this particular card. It features 1440(288x5) SPUs as well as 72 Texture Address Units and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5850 151 Watts
GeForce GTX 285 2GB 204 Watts
Difference: 53 Watts (35%)

Memory Bandwidth

The GeForce GTX 285 2GB should in theory perform much faster than the Radeon HD 5850 in general. (explain)

GeForce GTX 285 2GB 158976 MB/sec
Radeon HD 5850 128000 MB/sec
Difference: 30976 (24%)

Texel Rate

The Radeon HD 5850 will be a bit (approximately 1%) better at texture filtering than the GeForce GTX 285 2GB. (explain)

Radeon HD 5850 52200 Mtexels/sec
GeForce GTX 285 2GB 51840 Mtexels/sec
Difference: 360 (1%)

Pixel Rate

The Radeon HD 5850 is a bit (more or less 12%) more effective at anti-aliasing than the GeForce GTX 285 2GB, and also will be able to handle higher screen resolutions more effectively. (explain)

Radeon HD 5850 23200 Mpixels/sec
GeForce GTX 285 2GB 20736 Mpixels/sec
Difference: 2464 (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 HD 5850

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 HD 5850
Manufacturer nVidia AMD
Year January 15, 2009 September 30, 2009
Code Name G200b Cypress PRO
Memory 2048 MB 1024 MB
Core Speed 648 MHz 725 MHz
Memory Speed 2484 MHz 4000 MHz
Power (Max TDP) 204 watts 151 watts
Bandwidth 158976 MB/sec 128000 MB/sec
Texel Rate 51840 Mtexels/sec 52200 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 23200 Mpixels/sec
Unified Shaders 240 1440(288x5)
Texture Mapping Units 80 72
Render Output Units 32 32
Bus Type GDDR3 GDDR5
Bus Width 512-bit 256-bit
Fab Process 55 nm 40 nm
Transistors 1400 million 2154 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 2GB

Amazon.com

Check prices at:

Radeon HD 5850

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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