GeForce 8400 GS 512MB vs GeForce GTX 560 Ti

Intro

Compare those specs to the GeForce GTX 560 Ti, which uses a 40 nm design. nVidia has set the core speed at 822 MHz. The GDDR5 RAM is set to run at a speed of 1002 MHz on this specific card. It features 384 SPUs as well as 64 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8400 GS 512MB		40 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 130 Watts (325%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 Ti will be 1904% faster than the GeForce 8400 GS 512MB in general, because of its greater bandwidth. (explain)

GeForce GTX 560 Ti		128256 MB/sec
GeForce 8400 GS 512MB		6400 MB/sec
	Difference: 121856 (1904%)

Texel Rate

The GeForce GTX 560 Ti is much (approximately 912%) faster with regards to anisotropic filtering than the GeForce 8400 GS 512MB. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
GeForce 8400 GS 512MB		5200 Mtexels/sec
	Difference: 47408 (912%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 560 Ti is a better choice, by a large margin. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
GeForce 8400 GS 512MB		2600 Mpixels/sec
	Difference: 23704 (912%)

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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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