GeForce GTS 450 vs GeForce GTX 460 (OEM)

Intro

Compare those specifications to the GeForce GTX 460 (OEM), which has a core clock speed of 650 MHz and a GDDR5 memory speed of 850 MHz. It also features a 256-bit bus, and makes use of a 40 nm design. It features 336 SPUs, 56 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically, the GeForce GTX 460 (OEM) should perform much faster than the GeForce GTS 450 in general. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 51072 (88%)

Texel Rate

The GeForce GTX 460 (OEM) is quite a bit (approximately 45%) better at anisotropic filtering than the GeForce GTS 450. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 11344 (45%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 460 (OEM) is superior to the GeForce GTS 450, and very much so. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 8272 (66%)

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 (measured in MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends 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 max fill rate.