GeForce 8800 GT 512MB vs GeForce GT 430 (OEM)

Intro

Compare that to the GeForce GT 430 (OEM), which comes with GPU core speed of 700 MHz, and 2048 MB of GDDR3 RAM set to run at 900 MHz through a 128-bit bus. It also is made up of 96 Stream Processors, 16 Texture Address Units, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 (OEM)		60 Watts
GeForce 8800 GT 512MB		105 Watts
	Difference: 45 Watts (75%)

Memory Bandwidth

The GeForce 8800 GT 512MB should theoretically be a lot faster than the GeForce GT 430 (OEM) overall. (explain)

GeForce 8800 GT 512MB		57600 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 28800 (100%)

Texel Rate

The GeForce 8800 GT 512MB will be a lot (about 200%) more effective at AF than the GeForce GT 430 (OEM). (explain)

GeForce 8800 GT 512MB		33600 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 22400 (200%)

Pixel Rate

The GeForce 8800 GT 512MB is quite a bit (about 243%) more effective at anti-aliasing than the GeForce GT 430 (OEM), and also should be able to handle higher screen resolutions more effectively. (explain)

GeForce 8800 GT 512MB		9600 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 6800 (243%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of MB per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.