GeForce 9800 GT 1GB vs GeForce GTS 450 1GB

Intro

Compare those specs to the GeForce GTS 450 1GB, which features clock speeds of 783 MHz on the GPU, and 902 MHz on the 1024 MB of GDDR5 RAM. It features 192 SPUs along with 32 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB		105 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 1 Watts (1%)

Memory Bandwidth

The GeForce GTS 450 1GB, in theory, should be just a bit faster than the GeForce 9800 GT 1GB in general. (explain)

GeForce GTS 450 1GB		57728 MB/sec
GeForce 9800 GT 1GB		57600 MB/sec
	Difference: 128 (0%)

Texel Rate

The GeForce 9800 GT 1GB should be much (about 34%) faster with regards to anisotropic filtering than the GeForce GTS 450 1GB. (explain)

GeForce 9800 GT 1GB		33600 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 8544 (34%)

Pixel Rate

The GeForce GTS 450 1GB will be much (more or less 31%) more effective at full screen anti-aliasing than the GeForce 9800 GT 1GB, and also will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTS 450 1GB		12528 Mpixels/sec
GeForce 9800 GT 1GB		9600 Mpixels/sec
	Difference: 2928 (31%)

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 (measured in megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is worked out 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.