GeForce GTS 450 1GB vs GeForce GTX 465

Intro

Compare all that to the GeForce GTX 465, which makes use of a 40 nm design. nVidia has clocked the core frequency at 607 MHz. The GDDR5 memory works at a frequency of 802 MHz on this specific model. It features 352 SPUs along with 44 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB		106 Watts
GeForce GTX 465		200 Watts
	Difference: 94 Watts (89%)

Memory Bandwidth

Performance-wise, the GeForce GTX 465 should in theory be much better than the GeForce GTS 450 1GB in general. (explain)

GeForce GTX 465		102592 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 44864 (78%)

Texel Rate

The GeForce GTX 465 is a little bit (about 7%) faster with regards to anisotropic filtering than the GeForce GTS 450 1GB. (explain)

GeForce GTX 465		26708 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 1652 (7%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 465 is a better choice, by far. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 6896 (55%)

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 information (counted in megabytes per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core 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 of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.