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GeForce 8800 GT 512MB vs GeForce GTX 285 1GB

Intro

The GeForce 8800 GT 512MB comes with clock speeds of 600 MHz on the GPU, and 900 MHz on the 512 MB of GDDR3 RAM. It features 112 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the GeForce GTX 285 1GB, which has a GPU core clock speed of 648 MHz, and 1024 MB of GDDR3 RAM running at 1242 MHz through a 512-bit bus. It also features 240 Stream Processors, 80 Texture Address Units, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 512MB 105 Watts
GeForce GTX 285 1GB 204 Watts
Difference: 99 Watts (94%)

Memory Bandwidth

In theory, the GeForce GTX 285 1GB should be much faster than the GeForce 8800 GT 512MB in general. (explain)

GeForce GTX 285 1GB 158976 MB/sec
GeForce 8800 GT 512MB 57600 MB/sec
Difference: 101376 (176%)

Texel Rate

The GeForce GTX 285 1GB will be much (approximately 54%) faster with regards to anisotropic filtering than the GeForce 8800 GT 512MB. (explain)

GeForce GTX 285 1GB 51840 Mtexels/sec
GeForce 8800 GT 512MB 33600 Mtexels/sec
Difference: 18240 (54%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 285 1GB is a better choice, by far. (explain)

GeForce GTX 285 1GB 20736 Mpixels/sec
GeForce 8800 GT 512MB 9600 Mpixels/sec
Difference: 11136 (116%)

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 8800 GT 512MB

Amazon.com

Check prices at:

GeForce GTX 285 1GB

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 8800 GT 512MB GeForce GTX 285 1GB
Manufacturer nVidia nVidia
Year Oct 2007 January 15, 2009
Code Name G92 G200b
Memory 512 MB 1024 MB
Core Speed 600 MHz 648 MHz
Memory Speed 1800 MHz 2484 MHz
Power (Max TDP) 105 watts 204 watts
Bandwidth 57600 MB/sec 158976 MB/sec
Texel Rate 33600 Mtexels/sec 51840 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 20736 Mpixels/sec
Unified Shaders 112 240
Texture Mapping Units 56 80
Render Output Units 16 32
Bus Type GDDR3 GDDR3
Bus Width 256-bit 512-bit
Fab Process 65 nm 55 nm
Transistors 754 million 1400 million
Bus PCIe x16 2.0 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.1

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. 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 can be processed per second. This is calculated by multiplying the total texture units 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce 8800 GT 512MB

Amazon.com

Check prices at:

GeForce GTX 285 1GB

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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