GeForce GT 450 (OEM) vs GeForce GTX 460 1GB

Intro

Compare those specs to the GeForce GTX 460 1GB, which makes use of a 40 nm design. nVidia has set the core speed at 675 MHz. The GDDR5 RAM works at a speed of 900 MHz on this specific model. It features 336 SPUs as well as 56 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 54 Watts (51%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 1GB should be a bit faster than the GeForce GT 450 (OEM) in general. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 19200 (20%)

Texel Rate

The GeForce GTX 460 1GB will be much (about 99%) more effective at anisotropic filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 18840 (99%)

Pixel Rate

The GeForce GTX 460 1GB is just a bit (more or less 14%) faster with regards to full screen anti-aliasing than the GeForce GT 450 (OEM), and also capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 460 1GB		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: Bandwidth is the max amount of data (measured in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video card will be at 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 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 Raster Operations Pipelines 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 also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.