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GeForce GTX 285 1GB vs Radeon HD 5850

Intro

The GeForce GTX 285 1GB comes with a GPU clock 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 features 240 Stream Processors, 80 TAUs, and 32 Raster Operation Units.

Compare that to the Radeon HD 5850, which has GPU 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) Stream Processors, 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

As far as performance goes, the GeForce GTX 285 1GB should theoretically be much better 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 just a bit (more or less 1%) faster with regards to texture filtering 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 will be a small bit (approximately 12%) faster with regards to full screen anti-aliasing than the GeForce GTX 285 1GB, and will be capable of handling higher screen resolutions while still performing well. (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

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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

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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: Bandwidth is the max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max 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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