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GeForce GTX 285 1GB vs Radeon HD 5850

Intro

The GeForce GTX 285 1GB comes with a GPU core speed of 648 MHz, and the 1024 MB of GDDR3 RAM is set to run at 1242 MHz through a 512-bit bus. It also is comprised of 240 Stream Processors, 80 TAUs, and 32 Raster Operation Units.

Compare those specs to the Radeon HD 5850, which has a GPU core clock speed of 725 MHz, and 1024 MB of GDDR5 RAM running at 1000 MHz through a 256-bit bus. It also is made up of 1440(288x5) SPUs, 72 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5850 151 Watts
GeForce GTX 285 1GB 204 Watts
Difference: 53 Watts (35%)

Memory Bandwidth

The GeForce GTX 285 1GB should in theory perform much faster than the Radeon HD 5850 in general. (explain)

GeForce GTX 285 1GB 158976 MB/sec
Radeon HD 5850 128000 MB/sec
Difference: 30976 (24%)

Texel Rate

The Radeon HD 5850 is a little bit (more or less 1%) better at AF than the GeForce GTX 285 1GB. (explain)

Radeon HD 5850 52200 Mtexels/sec
GeForce GTX 285 1GB 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 1GB, and capable of handling higher resolutions without slowing down too much. (explain)

Radeon HD 5850 23200 Mpixels/sec
GeForce GTX 285 1GB 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

Display Prices

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GeForce GTX 285 1GB

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

Display Specifications

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Model GeForce GTX 285 1GB Radeon HD 5850
Manufacturer nVidia AMD
Year January 15, 2009 September 30, 2009
Code Name G200b Cypress PRO
Memory 1024 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 (in units of megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the 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 most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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 get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 1GB

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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