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GeForce 8800 GS vs Radeon HD 4670 512MB

Intro

The GeForce 8800 GS comes with clock speeds of 550 MHz on the GPU, and 800 MHz on the 384 MB of GDDR3 RAM. It features 96 SPUs as well as 48 Texture Address Units and 12 Rasterization Operator Units.

Compare all of that to the Radeon HD 4670 512MB, which uses a 55 nm design. AMD has set the core frequency at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 RAM is set to run at a frequency of 1000 MHz on this model. It features 320(64x5) SPUs as well as 32 Texture Address Units and 8 Rasterization Operator 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

Theoretically speaking, the GeForce 8800 GS is 20% faster 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 is a small bit (about 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

The GeForce 8800 GS will be a small bit (approximately 10%) more effective at AA than the Radeon HD 4670 512MB, and also able to handle higher resolutions better. (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: Bandwidth is the max amount of data (in units of MB per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach 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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