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GeForce 8800 GT 1GB vs Radeon HD 3850 256MB

Intro

The GeForce 8800 GT 1GB features a clock speed of 600 MHz and a GDDR3 memory speed of 900 MHz. It also uses a 256-bit memory bus, and uses a 65 nm design. It is made up of 112 SPUs, 56 TAUs, and 16 ROPs.

Compare those specs to the Radeon HD 3850 256MB, which comes with GPU clock speed of 668 MHz, and 256 MB of GDDR3 RAM set to run at 828 MHz through a 256-bit bus. It also features 320(64x5) SPUs, 16 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically, the GeForce 8800 GT 1GB should perform a small bit faster than the Radeon HD 3850 256MB in general. (explain)

GeForce 8800 GT 1GB 57600 MB/sec
Radeon HD 3850 256MB 52992 MB/sec
Difference: 4608 (9%)

Texel Rate

The GeForce 8800 GT 1GB is a lot (about 214%) better at AF than the Radeon HD 3850 256MB. (explain)

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

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 3850 256MB is superior to the GeForce 8800 GT 1GB, not by a very large margin though. (explain)

Radeon HD 3850 256MB 10688 Mpixels/sec
GeForce 8800 GT 1GB 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 1GB

Amazon.com

Check prices at:

Radeon HD 3850 256MB

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 1GB Radeon HD 3850 256MB
Manufacturer nVidia AMD
Year Dec 2007 Nov 19, 2007
Code Name G92 RV670 PRO
Memory 1024 MB 256 MB
Core Speed 600 MHz 668 MHz
Memory Speed 1800 MHz 1656 MHz
Power (Max TDP) 105 watts 75 watts
Bandwidth 57600 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 max amount of information (counted in megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant 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 8800 GT 1GB

Amazon.com

Check prices at:

Radeon HD 3850 256MB

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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