GeForce GTS 450 vs GeForce GTX 660

Intro

Compare that to the GeForce GTX 660, which features a clock frequency of 980 MHz and a GDDR5 memory speed of 1502 MHz. It also makes use of a 192-bit bus, and makes use of a 28 nm design. It is made up of 960 SPUs, 80 TAUs, and 24 ROPs.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 660		5063 points
GeForce GTS 450		1453 points
	Difference: 3610 (248%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450		106 Watts
GeForce GTX 660		140 Watts
	Difference: 34 Watts (32%)

Memory Bandwidth

In theory, the GeForce GTX 660 is 150% quicker than the GeForce GTS 450 in general, due to its higher bandwidth. (explain)

GeForce GTX 660		144192 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 86464 (150%)

Texel Rate

The GeForce GTX 660 should be quite a bit (about 213%) more effective at texture filtering than the GeForce GTS 450. (explain)

GeForce GTX 660		78400 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 53344 (213%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 660 is superior to the GeForce GTS 450, by far. (explain)

GeForce GTX 660		23520 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 10992 (88%)

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 data (measured in MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the 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 most pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.