GeForce GT 450 (OEM) vs GeForce GTX 470

Intro

Compare all of that to the GeForce GTX 470, which comes with GPU core speed of 607 MHz, and 1280 MB of GDDR5 RAM set to run at 837 MHz through a 320-bit bus. It also is comprised of 448 Stream Processors, 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

As far as performance goes, the GeForce GTX 470 should theoretically be a lot superior to the GeForce GT 450 (OEM) in general. (explain)

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

Texel Rate

The GeForce GTX 470 will be a lot (more or less 79%) more effective at anisotropic 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

The GeForce GTX 470 should be much (approximately 28%) faster with regards to FSAA than the GeForce GT 450 (OEM), and will be capable of handling higher screen resolutions while still performing well. (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 max amount of information (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units of the card 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 per second.

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