GeForce GT 220 GDDR3 vs GeForce GTX 650 Ti

Intro

Compare those specifications to the GeForce GTX 650 Ti, which comes with a core clock frequency of 928 MHz and a GDDR5 memory speed of 1350 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It is made up of 768 SPUs, 64 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
GeForce GTX 650 Ti		110 Watts
	Difference: 52 Watts (90%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 650 Ti should in theory be quite a bit superior to the GeForce GT 220 GDDR3 in general. (explain)

GeForce GTX 650 Ti		86400 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 54016 (167%)

Texel Rate

The GeForce GTX 650 Ti is much (approximately 494%) more effective at anisotropic filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 49392 (494%)

Pixel Rate

The GeForce GTX 650 Ti will be much (more or less 197%) more effective at FSAA than the GeForce GT 220 GDDR3, and also will be capable of handling higher resolutions better. (explain)

GeForce GTX 650 Ti		14848 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 9848 (197%)

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 (measured in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 processed per second. This number 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.