GeForce GT 220 GDDR3 vs GeForce GTX 650 Ti

Intro

Compare those specs to the GeForce GTX 650 Ti, which features a GPU core clock speed of 928 MHz, and 1024 MB of GDDR5 memory set to run at 1350 MHz through a 128-bit bus. It also is made up of 768 Stream Processors, 64 Texture Address Units, 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

Performance-wise, the GeForce GTX 650 Ti should in theory be a lot better than 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 should be a lot (about 494%) more effective at texture 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

If using a high screen resolution is important to you, then the GeForce GTX 650 Ti is the winner, and very much so. (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 data (in units of MB per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.