GeForce GT 450 (OEM) vs GeForce GTX 470

Intro

Compare that to the GeForce GTX 470, which features a core clock frequency of 607 MHz and a GDDR5 memory frequency of 837 MHz. It also makes use of a 320-bit bus, and uses a 40 nm design. It is made up of 448 SPUs, 56 TAUs, and 40 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce GTX 470		215 Watts
	Difference: 109 Watts (103%)

Memory Bandwidth

In theory, the GeForce GTX 470 should perform quite a bit faster than the GeForce GT 450 (OEM) overall. (explain)

GeForce GTX 470		133920 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 37920 (40%)

Texel Rate

The GeForce GTX 470 is much (more or less 79%) faster with regards to texture filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 470		33992 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 15032 (79%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 470 is the winner, by far. (explain)

GeForce GTX 470		24280 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 5320 (28%)

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 maximum amount of data (counted in megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. 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 output rate is also dependant on lots of 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.