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GeForce 8800 GS vs GeForce GT 230

Intro

The GeForce 8800 GS comes with a clock frequency of 550 MHz and a GDDR3 memory frequency of 800 MHz. It also features a 192-bit bus, and makes use of a 65 nm design. It features 96 SPUs, 48 TAUs, and 12 Raster Operation Units.

Compare that to the GeForce GT 230, which has GPU core speed of 550 MHz, and 1536 MB of DDR3 memory set to run at 800 MHz through a 192-bit bus. It also is made up of 32 Stream Processors, 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 the exact same memory bandwidth, so in theory they should have identical performance. (explain)

Texel Rate

The GeForce 8800 GS should be quite a bit (approximately 200%) better at texture filtering than the GeForce GT 230. (explain)

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

Pixel Rate

If using a high screen resolution is important to you, then the GeForce 8800 GS is a better choice, by a large margin. (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: Bandwidth is the maximum amount of data (in units of MB per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number 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 card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to 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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