GeForce 8400 GS 512MB vs GeForce GT 430 (OEM)

Intro

Compare all that to the GeForce GT 430 (OEM), which has GPU clock speed of 700 MHz, and 2048 MB of GDDR3 RAM running at 900 MHz through a 128-bit bus. It also features 96 Stream Processors, 16 TAUs, and 4 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8400 GS 512MB		40 Watts
GeForce GT 430 (OEM)		60 Watts
	Difference: 20 Watts (50%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 430 (OEM) is 350% faster than the GeForce 8400 GS 512MB overall, because of its higher bandwidth. (explain)

GeForce GT 430 (OEM)		28800 MB/sec
GeForce 8400 GS 512MB		6400 MB/sec
	Difference: 22400 (350%)

Texel Rate

The GeForce GT 430 (OEM) should be much (approximately 115%) faster with regards to anisotropic filtering than the GeForce 8400 GS 512MB. (explain)

GeForce GT 430 (OEM)		11200 Mtexels/sec
GeForce 8400 GS 512MB		5200 Mtexels/sec
	Difference: 6000 (115%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GT 430 (OEM) is superior to the GeForce 8400 GS 512MB, but not by far. (explain)

GeForce GT 430 (OEM)		2800 Mpixels/sec
GeForce 8400 GS 512MB		2600 Mpixels/sec
	Difference: 200 (8%)

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 max amount of information (measured in megabytes per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 figure is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can 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 Render Output Units by the the core 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 output 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 reach the maximum fill rate.