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GeForce 8800 GS vs Radeon HD 5830

Intro

The GeForce 8800 GS has a clock frequency of 550 MHz and a GDDR3 memory speed of 800 MHz. It also features a 192-bit bus, and uses a 65 nm design. It is made up of 96 SPUs, 48 Texture Address Units, and 12 ROPs.

Compare those specifications to the Radeon HD 5830, which makes use of a 40 nm design. AMD has set the core speed at 800 MHz. The GDDR5 RAM is set to run at a frequency of 1000 MHz on this card. It features 1120(224x5) SPUs as well as 56 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GS 105 Watts
Radeon HD 5830 175 Watts
Difference: 70 Watts (67%)

Memory Bandwidth

In theory, the Radeon HD 5830 will be 233% faster than the GeForce 8800 GS in general, because of its higher data rate. (explain)

Radeon HD 5830 128000 MB/sec
GeForce 8800 GS 38400 MB/sec
Difference: 89600 (233%)

Texel Rate

The Radeon HD 5830 will be much (approximately 70%) more effective at anisotropic filtering than the GeForce 8800 GS. (explain)

Radeon HD 5830 44800 Mtexels/sec
GeForce 8800 GS 26400 Mtexels/sec
Difference: 18400 (70%)

Pixel Rate

The Radeon HD 5830 should be much (approximately 94%) more effective at full screen anti-aliasing than the GeForce 8800 GS, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon HD 5830 12800 Mpixels/sec
GeForce 8800 GS 6600 Mpixels/sec
Difference: 6200 (94%)

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 5830

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 5830
Manufacturer nVidia AMD
Year Jan 2008 February 25, 2010
Code Name G92 Cypress LE
Memory 384 MB 1024 MB
Core Speed 550 MHz 800 MHz
Memory Speed 1600 MHz 4000 MHz
Power (Max TDP) 105 watts 175 watts
Bandwidth 38400 MB/sec 128000 MB/sec
Texel Rate 26400 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 6600 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 96 1120(224x5)
Texture Mapping Units 48 56
Render Output Units 12 16
Bus Type GDDR3 GDDR5
Bus Width 192-bit 256-bit
Fab Process 65 nm 40 nm
Transistors 754 million 2154 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 can be applied per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GS

Amazon.com

Check prices at:

Radeon HD 5830

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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