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GeForce 8800 GS vs GeForce GT 230

Intro

The GeForce 8800 GS comes with core 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 TAUs and 12 Rasterization Operator Units.

Compare those specs to the GeForce GT 230, which features GPU clock speed of 550 MHz, and 1536 MB of DDR3 memory set to run at 800 MHz through a 192-bit bus. It also features 32 SPUs, 16 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230 65 Watts
GeForce 8800 GS 105 Watts
Difference: 40 Watts (62%)

Memory Bandwidth

Both cards have exactly the same memory bandwidth, so in theory they should perform the same. (explain)

Texel Rate

The GeForce 8800 GS will be a lot (approximately 200%) better at AF than the GeForce GT 230. (explain)

GeForce 8800 GS 26400 Mtexels/sec
GeForce GT 230 8800 Mtexels/sec
Difference: 17600 (200%)

Pixel Rate

The GeForce 8800 GS will be a lot (about 50%) faster with regards to FSAA than the GeForce GT 230, and will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce 8800 GS 6600 Mpixels/sec
GeForce GT 230 4400 Mpixels/sec
Difference: 2200 (50%)

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:

GeForce GT 230

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 GeForce GT 230
Manufacturer nVidia nVidia
Year Jan 2008 October 2009
Code Name G92 GT218
Memory 384 MB 1536 MB
Core Speed 550 MHz 550 MHz
Memory Speed 1600 MHz 1600 MHz
Power (Max TDP) 105 watts 65 watts
Bandwidth 38400 MB/sec 38400 MB/sec
Texel Rate 26400 Mtexels/sec 8800 Mtexels/sec
Pixel Rate 6600 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 96 32
Texture Mapping Units 48 16
Render Output Units 12 8
Bus Type GDDR3 DDR3
Bus Width 192-bit 192-bit
Fab Process 65 nm 40 nm
Transistors 754 million 260 million
Bus PCIe x16 2.0 PCIe 2.0
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce 8800 GS

Amazon.com

Check prices at:

GeForce GT 230

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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