GeForce GTS 450 1GB vs GeForce GTX 470

Intro

Compare that to the GeForce GTX 470, which features core speeds of 607 MHz on the GPU, and 837 MHz on the 1280 MB of GDDR5 memory. It features 448 SPUs along with 56 Texture Address Units and 40 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB		106 Watts
GeForce GTX 470		215 Watts
	Difference: 109 Watts (103%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 470 will be 132% faster than the GeForce GTS 450 1GB overall, due to its greater bandwidth. (explain)

GeForce GTX 470		133920 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 76192 (132%)

Texel Rate

The GeForce GTX 470 will be a lot (about 36%) more effective at AF than the GeForce GTS 450 1GB. (explain)

GeForce GTX 470		33992 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 8936 (36%)

Pixel Rate

The GeForce GTX 470 is a lot (more or less 94%) faster with regards to anti-aliasing than the GeForce GTS 450 1GB, and will be able to handle higher screen resolutions better. (explain)

GeForce GTX 470		24280 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 11752 (94%)

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 (in units of megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units by the core 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.