GeForce 9400 GT 256MB vs GeForce GTX 560 Ti

Intro

Compare all of that to the GeForce GTX 560 Ti, which has core clock speeds of 822 MHz on the GPU, and 1002 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs as well as 64 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9400 GT 256MB		50 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 120 Watts (240%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 560 Ti should theoretically be a lot better than the GeForce 9400 GT 256MB in general. (explain)

GeForce GTX 560 Ti		128256 MB/sec
GeForce 9400 GT 256MB		12800 MB/sec
	Difference: 115456 (902%)

Texel Rate

The GeForce GTX 560 Ti is quite a bit (about 1096%) better at anisotropic filtering than the GeForce 9400 GT 256MB. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
GeForce 9400 GT 256MB		4400 Mtexels/sec
	Difference: 48208 (1096%)

Pixel Rate

The GeForce GTX 560 Ti is quite a bit (approximately 1096%) faster with regards to AA than the GeForce 9400 GT 256MB, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
GeForce 9400 GT 256MB		2200 Mpixels/sec
	Difference: 24104 (1096%)

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 maximum amount of information (measured in megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.