GeForce GT 220 GDDR3 vs GeForce GTX 460 1GB

Intro

Compare that to the GeForce GTX 460 1GB, which comes with a clock speed of 675 MHz and a GDDR5 memory frequency of 900 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It is made up of 336 SPUs, 56 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 102 Watts (176%)

Memory Bandwidth

The GeForce GTX 460 1GB, in theory, should be quite a bit faster than the GeForce GT 220 GDDR3 overall. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 82816 (256%)

Texel Rate

The GeForce GTX 460 1GB should be much (more or less 278%) better at anisotropic filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 27800 (278%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 460 1GB is a better choice, and very much so. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 16600 (332%)

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 max amount of data (counted in MB per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.