GeForce GT 450 (OEM) vs GeForce GTX 550 Ti

Intro

Compare those specs to the GeForce GTX 550 Ti, which makes use of a 40 nm design. nVidia has set the core frequency at 900 MHz. The GDDR5 memory works at a speed of 1026 MHz on this card. It features 192 SPUs along with 32 TAUs and 24 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 10 Watts (9%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 550 Ti is 3% quicker than the GeForce GT 450 (OEM) in general, because of its greater data rate. (explain)

GeForce GTX 550 Ti		98496 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 2496 (3%)

Texel Rate

The GeForce GTX 550 Ti will be a lot (about 52%) more effective at texture filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 550 Ti		28800 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 9840 (52%)

Pixel Rate

The GeForce GTX 550 Ti is a small bit (approximately 14%) better at FSAA than the GeForce GT 450 (OEM), and capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 2640 (14%)

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 (counted in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number 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 card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of 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.