GeForce GT 450 (OEM) vs GeForce GTX 560

Intro

Compare those specs to the GeForce GTX 560, which features GPU clock speed of 810 MHz, and 1024 MB of GDDR5 RAM running at 1001 MHz through a 256-bit bus. It also is made up of 336 SPUs, 56 Texture Address Units, and 32 ROPs.

Display Graphs

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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

The GeForce GTX 560, in theory, should be much faster than the GeForce GT 450 (OEM) overall. (explain)

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

Texel Rate

The GeForce GTX 560 will be quite a bit (approximately 139%) faster with regards to texture filtering 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 will be much (more or less 37%) better at anti-aliasing than the GeForce GT 450 (OEM), and will be capable of handling higher resolutions without slowing down too much. (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: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it should 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 AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.