GeForce GT 450 (OEM) vs GeForce GTX 460 SE

Intro

Compare all that to the GeForce GTX 460 SE, which comes with a clock speed of 650 MHz and a GDDR5 memory speed of 850 MHz. It also uses a 256-bit bus, and makes use of a 40 nm design. It features 288 SPUs, 48 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

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

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

Texel Rate

The GeForce GTX 460 SE will be much (approximately 65%) faster with regards to anisotropic filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 460 SE		31200 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 12240 (65%)

Pixel Rate

The GeForce GTX 460 SE should be a small bit (more or less 10%) faster with regards to AA than the GeForce GT 450 (OEM), and able to handle higher screen resolutions better. (explain)

GeForce GTX 460 SE		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 (in units of megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the 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 most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.