GeForce GT 450 (OEM) vs GeForce GTX 460 (OEM)

Intro

Compare all of that to the GeForce GTX 460 (OEM), which makes use of a 40 nm design. nVidia has set the core speed at 650 MHz. The GDDR5 RAM runs at a frequency of 850 MHz on this specific model. It features 336 SPUs along with 56 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 44 Watts (42%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 (OEM) should in theory be a small bit better than the GeForce GT 450 (OEM) in general. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 12800 (13%)

Texel Rate

The GeForce GTX 460 (OEM) is a lot (more or less 92%) better at texture filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 17440 (92%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 460 (OEM) is the winner, though not by far. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 1840 (10%)

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 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 bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units of the card by the core 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 processed per second.

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