GeForce GT 220 GDDR3 vs GeForce GTX 460 (OEM)

Intro

Compare those specs to the GeForce GTX 460 (OEM), which has a clock speed of 650 MHz and a GDDR5 memory speed of 850 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It is made up of 336 SPUs, 56 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 92 Watts (159%)

Memory Bandwidth

In theory, the GeForce GTX 460 (OEM) should be 236% quicker than the GeForce GT 220 GDDR3 in general, because of its greater bandwidth. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 76416 (236%)

Texel Rate

The GeForce GTX 460 (OEM) is a lot (about 264%) more effective at texture filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 26400 (264%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 460 (OEM) is superior to the GeForce GT 220 GDDR3, by far. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 15800 (316%)

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 moved over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount 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 in a second.

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