GeForce GTS 450 vs GeForce GTX 460 2GB

Intro

Compare those specs to the GeForce GTX 460 2GB, which uses a 40 nm design. nVidia has set the core speed at 675 MHz. The GDDR5 memory is set to run at a speed of 900 MHz on this card. It features 336 SPUs along with 56 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450		106 Watts
GeForce GTX 460 2GB		160 Watts
	Difference: 54 Watts (51%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 2GB should theoretically be quite a bit superior to the GeForce GTS 450 in general. (explain)

GeForce GTX 460 2GB		115200 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 57472 (100%)

Texel Rate

The GeForce GTX 460 2GB is much (about 51%) more effective at anisotropic filtering than the GeForce GTS 450. (explain)

GeForce GTX 460 2GB		37800 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 12744 (51%)

Pixel Rate

The GeForce GTX 460 2GB should be quite a bit (about 72%) faster with regards to AA than the GeForce GTS 450, and also will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 460 2GB		21600 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 9072 (72%)

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 maximum amount of data (in units of MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video 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 graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core speed of the card. 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.