GeForce GT 210 vs GeForce GT 420

Intro

Compare that to the GeForce GT 420, which makes use of a 40 nm design. nVidia has clocked the core frequency at 700 MHz. The GDDR3 RAM works at a frequency of 900 MHz on this model. It features 48 SPUs along with 8 TAUs and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 210		31 Watts
GeForce GT 420		50 Watts
	Difference: 19 Watts (61%)

Memory Bandwidth

The GeForce GT 420, in theory, should be quite a bit faster than the GeForce GT 210 in general. (explain)

GeForce GT 420		28800 MB/sec
GeForce GT 210		12800 MB/sec
	Difference: 16000 (125%)

Texel Rate

The GeForce GT 420 will be a small bit (about 19%) better at texture filtering than the GeForce GT 210. (explain)

GeForce GT 420		5600 Mtexels/sec
GeForce GT 210		4712 Mtexels/sec
	Difference: 888 (19%)

Pixel Rate

The GeForce GT 420 is just a bit (about 19%) better at full screen anti-aliasing than the GeForce GT 210, and will be able to handle higher screen resolutions better. (explain)

GeForce GT 420		2800 Mpixels/sec
GeForce GT 210		2356 Mpixels/sec
	Difference: 444 (19%)

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 largest amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock 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 memory bandwidth is, the lower the ability to get to the maximum fill rate.