GeForce GT 450 (OEM) vs GeForce GTX 460 SE

Intro

Compare that to the GeForce GTX 460 SE, which features GPU clock speed of 650 MHz, and 1024 MB of GDDR5 memory set to run at 850 MHz through a 256-bit bus. It also is made up of 288 SPUs, 48 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 SE		150 Watts
	Difference: 44 Watts (42%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 SE is 13% quicker than the GeForce GT 450 (OEM) overall, due to its higher data rate. (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 should be much (approximately 65%) more effective at texture 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

If running with a high screen resolution is important to you, then the GeForce GTX 460 SE is a better choice, though only just barely. (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 largest amount of information (in units of megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.