GeForce GT 430 1GB vs GeForce GTS 450 1GB

Intro

Compare that to the GeForce GTS 450 1GB, which has GPU core speed of 783 MHz, and 1024 MB of GDDR5 RAM set to run at 902 MHz through a 128-bit bus. It also is made up of 192 SPUs, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 46 Watts (77%)

Memory Bandwidth

The GeForce GTS 450 1GB should in theory perform quite a bit faster than the GeForce GT 430 1GB overall. (explain)

GeForce GTS 450 1GB		57728 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 28928 (100%)

Texel Rate

The GeForce GTS 450 1GB should be quite a bit (approximately 124%) better at texture filtering than the GeForce GT 430 1GB. (explain)

GeForce GTS 450 1GB		25056 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 13856 (124%)

Pixel Rate

The GeForce GTS 450 1GB should be a lot (approximately 347%) better at anti-aliasing than the GeForce GT 430 1GB, and also capable of handling higher resolutions while still performing well. (explain)

GeForce GTS 450 1GB		12528 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 9728 (347%)

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: Memory bandwidth is the largest amount of data (counted in MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, 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, HDR 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 amount of texture units of the card 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 amount of pixels the graphics card 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 Render Output Units by the the core clock speed. 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 quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.