GeForce GT 220 GDDR3 vs Geforce GTX 770

Intro

Compare those specs to the Geforce GTX 770, which uses a 28 nm design. nVidia has set the core frequency at 1046 MHz. The GDDR5 memory is set to run at a speed of 1753 MHz on this particular card. It features 1536 SPUs as well as 128 Texture Address Units and 32 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 GTX 770		230 Watts
	Difference: 172 Watts (297%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 770 should be quite a bit faster than the GeForce GT 220 GDDR3 in general. (explain)

Geforce GTX 770		224384 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 192000 (593%)

Texel Rate

The Geforce GTX 770 will be quite a bit (approximately 1239%) better at AF than the GeForce GT 220 GDDR3. (explain)

Geforce GTX 770		133888 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 123888 (1239%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Geforce GTX 770 is superior to the GeForce GT 220 GDDR3, by a large margin. (explain)

Geforce GTX 770		33472 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 28472 (569%)

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 megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's bus 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 ANOTHER 2x. The higher the card's memory bandwidth, 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 can be processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines 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 fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.