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GeForce 8800 GS vs Radeon HD 4670 512MB

Intro

The GeForce 8800 GS comes with a GPU core speed of 550 MHz, and the 384 MB of GDDR3 RAM is set to run at 800 MHz through a 192-bit bus. It also is made up of 96 SPUs, 48 Texture Address Units, and 12 Raster Operation Units.

Compare those specs to the Radeon HD 4670 512MB, which features a GPU core clock speed of 750 MHz, and 512 MB of GDDR4/GDDR3/DDR3/DDR2 RAM set to run at 1000 MHz through a 128-bit bus. It also features 320(64x5) Stream Processors, 32 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 512MB 70 Watts
GeForce 8800 GS 105 Watts
Difference: 35 Watts (50%)

Memory Bandwidth

In theory, the GeForce 8800 GS should be 20% quicker than the Radeon HD 4670 512MB overall, due to its higher bandwidth. (explain)

GeForce 8800 GS 38400 MB/sec
Radeon HD 4670 512MB 32000 MB/sec
Difference: 6400 (20%)

Texel Rate

The GeForce 8800 GS will be a small bit (approximately 10%) faster with regards to texture filtering than the Radeon HD 4670 512MB. (explain)

GeForce 8800 GS 26400 Mtexels/sec
Radeon HD 4670 512MB 24000 Mtexels/sec
Difference: 2400 (10%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 8800 GS is the winner, but not by far. (explain)

GeForce 8800 GS 6600 Mpixels/sec
Radeon HD 4670 512MB 6000 Mpixels/sec
Difference: 600 (10%)

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 GS

Amazon.com

Check prices at:

Radeon HD 4670 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 GS Radeon HD 4670 512MB
Manufacturer nVidia AMD
Year Jan 2008 Sep 10, 2008
Code Name G92 RV730 XT
Memory 384 MB 512 MB
Core Speed 550 MHz 750 MHz
Memory Speed 1600 MHz 2000 MHz
Power (Max TDP) 105 watts 70 watts
Bandwidth 38400 MB/sec 32000 MB/sec
Texel Rate 26400 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 6600 Mpixels/sec 6000 Mpixels/sec
Unified Shaders 96 320(64x5)
Texture Mapping Units 48 32
Render Output Units 12 8
Bus Type GDDR3 GDDR4/GDDR3/DDR3/DDR2
Bus Width 192-bit 128-bit
Fab Process 65 nm 55 nm
Transistors 754 million 514 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 (in units of megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GS

Amazon.com

Check prices at:

Radeon HD 4670 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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