GeForce GT 220 GDDR3 vs GeForce GT 340

Intro

Compare all that to the GeForce GT 340, which has a GPU core clock speed of 550 MHz, and 512 MB of GDDR5 RAM running at 850 MHz through a 128-bit bus. It also features 96 SPUs, 32 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
GeForce GT 340		69 Watts
	Difference: 11 Watts (19%)

Memory Bandwidth

In theory, the GeForce GT 340 should perform much faster than the GeForce GT 220 GDDR3 overall. (explain)

GeForce GT 340		54400 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 22016 (68%)

Texel Rate

The GeForce GT 340 should be a lot (approximately 76%) more effective at anisotropic filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GT 340		17600 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 7600 (76%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GT 220 GDDR3 is superior to the GeForce GT 340, though only just barely. (explain)

GeForce GT 220 GDDR3		5000 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 600 (14%)

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 largest amount of information (measured in MB per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling 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 that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.