GeForce GT 450 (OEM) vs GeForce GTX 560 Ti

Intro

Compare all that to the GeForce GTX 560 Ti, which features a clock speed of 822 MHz and a GDDR5 memory frequency of 1002 MHz. It also features a 256-bit bus, and uses a 40 nm design. It is made up of 384 SPUs, 64 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 64 Watts (60%)

Memory Bandwidth

In theory, the GeForce GTX 560 Ti should be 34% quicker than the GeForce GT 450 (OEM) overall, because of its greater bandwidth. (explain)

GeForce GTX 560 Ti		128256 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 32256 (34%)

Texel Rate

The GeForce GTX 560 Ti should be quite a bit (more or less 177%) more effective at texture filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 33648 (177%)

Pixel Rate

The GeForce GTX 560 Ti will be much (about 39%) faster with regards to FSAA than the GeForce GT 450 (OEM), and will be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 7344 (39%)

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 data (counted in MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs 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, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.