GeForce GT 450 (OEM) vs GeForce GTX 465

Intro

Compare those specs to the GeForce GTX 465, which makes use of a 40 nm design. nVidia has clocked the core speed at 607 MHz. The GDDR5 memory is set to run at a speed of 802 MHz on this specific model. It features 352 SPUs along with 44 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 465		200 Watts
	Difference: 94 Watts (89%)

Memory Bandwidth

Performance-wise, the GeForce GTX 465 should in theory be just a bit superior to the GeForce GT 450 (OEM) overall. (explain)

GeForce GTX 465		102592 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 6592 (7%)

Texel Rate

The GeForce GTX 465 should be a lot (approximately 41%) more effective at anisotropic filtering than the GeForce GT 450 (OEM). (explain)

GeForce GTX 465		26708 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 7748 (41%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 465 is the winner, though only just barely. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 464 (2%)

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 largest amount of information (counted in megabytes per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.