GeForce GT 450 (OEM) vs GeForce GTX 560

Intro

Compare that to the GeForce GTX 560, which comes with a GPU core clock speed of 810 MHz, and 1024 MB of GDDR5 RAM set to run at 1001 MHz through a 256-bit bus. It also is comprised of 336 Stream Processors, 56 TAUs, 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		150 Watts
	Difference: 44 Watts (42%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 will be 33% faster than the GeForce GT 450 (OEM) in general, because of its greater bandwidth. (explain)

GeForce GTX 560		128128 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 32128 (33%)

Texel Rate

The GeForce GTX 560 should be much (about 139%) better at AF than the GeForce GT 450 (OEM). (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 26400 (139%)

Pixel Rate

The GeForce GTX 560 should be a lot (about 37%) more effective at anti-aliasing than the GeForce GT 450 (OEM), and will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 6960 (37%)

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 (in units of MB per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling 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 graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out 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 rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.