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

Intro

The GeForce 8800 GTS (G92) features core clock speeds of 650 MHz on the GPU, and 970 MHz on the 512 MB of GDDR3 memory. It features 128 SPUs along with 64 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the Radeon HD 3850 256MB, which has a core clock speed of 668 MHz and a GDDR3 memory speed of 828 MHz. It also makes use of a 256-bit memory bus, and makes use of a 55 nm design. It features 320(64x5) SPUs, 16 TAUs, 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

The GeForce 8800 GTS (G92), in theory, should perform a bit faster 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) will be a lot (about 289%) better 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

The Radeon HD 3850 256MB is a small bit (about 3%) better at anti-aliasing than the GeForce 8800 GTS (G92), and should be able to handle higher resolutions without losing too much performance. (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

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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 largest amount of information (in units of megabytes per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential 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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