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GeForce 8800 GTS (G92) vs Radeon HD 3850 512MB

Intro

The GeForce 8800 GTS (G92) has a clock frequency of 650 MHz and a GDDR3 memory frequency of 970 MHz. It also makes use of a 256-bit bus, and makes use of a 65 nm design. It is comprised of 128 SPUs, 64 TAUs, and 16 Raster Operation Units.

Compare all of that to the Radeon HD 3850 512MB, which uses a 55 nm design. AMD has clocked the core frequency at 668 MHz. The GDDR3 RAM is set to run at a speed of 828 MHz on this particular model. It features 320(64x5) SPUs along with 16 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3850 512MB 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 in theory be a small bit better than the Radeon HD 3850 512MB in general. (explain)

GeForce 8800 GTS (G92) 62080 MB/sec
Radeon HD 3850 512MB 52992 MB/sec
Difference: 9088 (17%)

Texel Rate

The GeForce 8800 GTS (G92) will be much (approximately 289%) more effective at AF than the Radeon HD 3850 512MB. (explain)

GeForce 8800 GTS (G92) 41600 Mtexels/sec
Radeon HD 3850 512MB 10688 Mtexels/sec
Difference: 30912 (289%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 3850 512MB is superior to the GeForce 8800 GTS (G92), not by a very large margin though. (explain)

Radeon HD 3850 512MB 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 512MB

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 512MB
Manufacturer nVidia AMD
Year Dec 2007 Nov 19, 2007
Code Name G92 RV670 PRO
Memory 512 MB 512 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: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G92)

Amazon.com

Check prices at:

Radeon HD 3850 512MB

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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