GeForce GT 220 GDDR3 vs GeForce GTS 450 1GB

Intro

Compare those specs to the GeForce GTS 450 1GB, which features core speeds of 783 MHz on the GPU, and 902 MHz on the 1024 MB of GDDR5 RAM. It features 192 SPUs along with 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 48 Watts (83%)

Memory Bandwidth

In theory, the GeForce GTS 450 1GB should perform quite a bit faster than the GeForce GT 220 GDDR3 overall. (explain)

GeForce GTS 450 1GB		57728 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 25344 (78%)

Texel Rate

The GeForce GTS 450 1GB will be a lot (more or less 151%) more effective at AF than the GeForce GT 220 GDDR3. (explain)

GeForce GTS 450 1GB		25056 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 15056 (151%)

Pixel Rate

The GeForce GTS 450 1GB should be much (approximately 151%) faster with regards to anti-aliasing than the GeForce GT 220 GDDR3, and will be able to handle higher screen resolutions more effectively. (explain)

GeForce GTS 450 1GB		12528 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 7528 (151%)

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 maximum amount of information (counted in MB per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.