GeForce 9800 GT 512MB vs GeForce GTX 560

Intro

Compare those specifications to the GeForce GTX 560, which features clock speeds of 810 MHz on the GPU, and 1001 MHz on the 1024 MB of GDDR5 memory. It features 336 SPUs along with 56 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 512MB		105 Watts
GeForce GTX 560		150 Watts
	Difference: 45 Watts (43%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 should be 122% quicker than the GeForce 9800 GT 512MB overall, because of its higher data rate. (explain)

GeForce GTX 560		128128 MB/sec
GeForce 9800 GT 512MB		57600 MB/sec
	Difference: 70528 (122%)

Texel Rate

The GeForce GTX 560 is much (approximately 35%) more effective at anisotropic filtering than the GeForce 9800 GT 512MB. (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce 9800 GT 512MB		33600 Mtexels/sec
	Difference: 11760 (35%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 560 is superior to the GeForce 9800 GT 512MB, by far. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce 9800 GT 512MB		9600 Mpixels/sec
	Difference: 16320 (170%)

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 data (measured in MB per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines 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 fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.