GeForce GT 450 (OEM) vs GeForce GTX 465

Intro

Compare those specifications 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 model. It features 352 SPUs as well as 44 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 465		200 Watts
	Difference: 94 Watts (89%)

Memory Bandwidth

In theory, the GeForce GTX 465 should perform a little bit faster than the GeForce GT 450 (OEM) in general. (explain)

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

Texel Rate

The GeForce GTX 465 is much (more or less 41%) better at texture 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

The GeForce GTX 465 should be a little bit (more or less 2%) faster with regards to AA than the GeForce GT 450 (OEM), and also capable of handling higher resolutions better. (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: Memory bandwidth is the max amount of data (counted in MB per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video 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 amount of pixels that the graphics card 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 ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.