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GeForce GTX 285 2GB vs Radeon HD 5830

Intro

The GeForce GTX 285 2GB has a GPU core clock speed of 648 MHz, and the 2048 MB of GDDR3 memory runs at 1242 MHz through a 512-bit bus. It also is made up of 240 Stream Processors, 80 TAUs, and 32 ROPs.

Compare those specs to the Radeon HD 5830, which comes with a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 memory set to run at 1000 MHz through a 256-bit bus. It also is made up of 1120(224x5) Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5830 175 Watts
GeForce GTX 285 2GB 204 Watts
Difference: 29 Watts (17%)

Memory Bandwidth

Theoretically, the GeForce GTX 285 2GB should be quite a bit faster than the Radeon HD 5830 overall. (explain)

GeForce GTX 285 2GB 158976 MB/sec
Radeon HD 5830 128000 MB/sec
Difference: 30976 (24%)

Texel Rate

The GeForce GTX 285 2GB is a bit (about 16%) better at AF than the Radeon HD 5830. (explain)

GeForce GTX 285 2GB 51840 Mtexels/sec
Radeon HD 5830 44800 Mtexels/sec
Difference: 7040 (16%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 285 2GB is the winner, by far. (explain)

GeForce GTX 285 2GB 20736 Mpixels/sec
Radeon HD 5830 12800 Mpixels/sec
Difference: 7936 (62%)

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 5830

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 5830
Manufacturer nVidia AMD
Year January 15, 2009 February 25, 2010
Code Name G200b Cypress LE
Memory 2048 MB 1024 MB
Core Speed 648 MHz 800 MHz
Memory Speed 2484 MHz 4000 MHz
Power (Max TDP) 204 watts 175 watts
Bandwidth 158976 MB/sec 128000 MB/sec
Texel Rate 51840 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 240 1120(224x5)
Texture Mapping Units 80 56
Render Output Units 32 16
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: Bandwidth is the max amount of information (in units of megabytes per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once 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 high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 2GB

Amazon.com

Check prices at:

Radeon HD 5830

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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