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GeForce 8800 GTS (G92) vs Radeon HD 3850 256MB

Intro

The GeForce 8800 GTS (G92) comes with a clock speed of 650 MHz and a GDDR3 memory speed of 970 MHz. It also uses a 256-bit memory bus, and uses a 65 nm design. It features 128 SPUs, 64 TAUs, and 16 ROPs.

Compare all that to the Radeon HD 3850 256MB, which uses a 55 nm design. AMD has set the core frequency at 668 MHz. The GDDR3 memory is set to run at a speed of 828 MHz on this specific model. It features 320(64x5) SPUs along with 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 GTS (G92) 135 Watts
Difference: 60 Watts (80%)

Memory Bandwidth

As far as performance goes, the GeForce 8800 GTS (G92) should theoretically be a bit better than the Radeon HD 3850 256MB overall. (explain)

GeForce 8800 GTS (G92) 62080 MB/sec
Radeon HD 3850 256MB 52992 MB/sec
Difference: 9088 (17%)

Texel Rate

The GeForce 8800 GTS (G92) should be much (more or less 289%) more effective at AF than the Radeon HD 3850 256MB. (explain)

GeForce 8800 GTS (G92) 41600 Mtexels/sec
Radeon HD 3850 256MB 10688 Mtexels/sec
Difference: 30912 (289%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 3850 256MB is a better choice, though not by far. (explain)

Radeon HD 3850 256MB 10688 Mpixels/sec
GeForce 8800 GTS (G92) 10400 Mpixels/sec
Difference: 288 (3%)

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 GTS (G92)

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 GTS (G92) Radeon HD 3850 256MB
Manufacturer nVidia AMD
Year Dec 2007 Nov 19, 2007
Code Name G92 RV670 PRO
Memory 512 MB 256 MB
Core Speed 650 MHz 668 MHz
Memory Speed 1940 MHz 1656 MHz
Power (Max TDP) 135 watts 75 watts
Bandwidth 62080 MB/sec 52992 MB/sec
Texel Rate 41600 Mtexels/sec 10688 Mtexels/sec
Pixel Rate 10400 Mpixels/sec 10688 Mpixels/sec
Unified Shaders 128 320(64x5)
Texture Mapping Units 64 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: Bandwidth is the max amount of information (in units of megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video 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 amount of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core 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 quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G92)

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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