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GeForce 8800 GT 256MB vs Radeon HD 3850 1GB

Intro

The GeForce 8800 GT 256MB makes use of a 65 nm design. nVidia has set the core frequency at 600 MHz. The GDDR3 memory is set to run at a frequency of 700 MHz on this particular card. It features 112 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

Compare that to the Radeon HD 3850 1GB, which features GPU core speed of 668 MHz, and 1024 MB of GDDR3 RAM running at 828 MHz through a 256-bit bus. It also is made up of 320(64x5) SPUs, 16 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3850 1GB 75 Watts
GeForce 8800 GT 256MB 105 Watts
Difference: 30 Watts (40%)

Memory Bandwidth

The Radeon HD 3850 1GB should in theory be a bit faster than the GeForce 8800 GT 256MB in general. (explain)

Radeon HD 3850 1GB 52992 MB/sec
GeForce 8800 GT 256MB 44800 MB/sec
Difference: 8192 (18%)

Texel Rate

The GeForce 8800 GT 256MB is much (more or less 214%) faster with regards to texture filtering than the Radeon HD 3850 1GB. (explain)

GeForce 8800 GT 256MB 33600 Mtexels/sec
Radeon HD 3850 1GB 10688 Mtexels/sec
Difference: 22912 (214%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 3850 1GB is superior to the GeForce 8800 GT 256MB, though not by far. (explain)

Radeon HD 3850 1GB 10688 Mpixels/sec
GeForce 8800 GT 256MB 9600 Mpixels/sec
Difference: 1088 (11%)

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 256MB

Amazon.com

Check prices at:

Radeon HD 3850 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 256MB Radeon HD 3850 1GB
Manufacturer nVidia AMD
Year Dec 2007 Nov 19, 2007
Code Name G92 RV670 PRO
Memory 256 MB 1024 MB
Core Speed 600 MHz 668 MHz
Memory Speed 1400 MHz 1656 MHz
Power (Max TDP) 105 watts 75 watts
Bandwidth 44800 MB/sec 52992 MB/sec
Texel Rate 33600 Mtexels/sec 10688 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 10688 Mpixels/sec
Unified Shaders 112 320(64x5)
Texture Mapping Units 56 16
Render Output Units 16 16
Bus Type GDDR3 GDDR3
Bus Width 256-bit 256-bit
Fab Process 65 nm 55 nm
Transistors 754 million (Unknown) million
Bus PCIe x16 2.0 PCIe 2.0 x16/AGP 8x
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 processed in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the 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 amount of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs 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 also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GT 256MB

Amazon.com

Check prices at:

Radeon HD 3850 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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