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GeForce GT 220 GDDR3 vs GeForce GT 430

Intro

The GeForce GT 220 GDDR3 makes use of a 40 nm design. nVidia has set the core frequency at 625 MHz. The GDDR3 memory works at a frequency of 1012 MHz on this particular card. It features 48 SPUs as well as 16 TAUs and 8 ROPs.

Compare all of that to the GeForce GT 430, which comes with a clock speed of 700 MHz and a GDDR3 memory speed of 900 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It is comprised of 96 SPUs, 16 TAUs, and 4 Raster Operation Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3 58 Watts
GeForce GT 430 60 Watts
Difference: 2 Watts (3%)

Memory Bandwidth

Performance-wise, the GeForce GT 220 GDDR3 should theoretically be a small bit better than the GeForce GT 430 overall. (explain)

GeForce GT 220 GDDR3 32384 MB/sec
GeForce GT 430 28800 MB/sec
Difference: 3584 (12%)

Texel Rate

The GeForce GT 430 is just a bit (approximately 12%) better at AF than the GeForce GT 220 GDDR3. (explain)

GeForce GT 430 11200 Mtexels/sec
GeForce GT 220 GDDR3 10000 Mtexels/sec
Difference: 1200 (12%)

Pixel Rate

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

GeForce GT 220 GDDR3 5000 Mpixels/sec
GeForce GT 430 2800 Mpixels/sec
Difference: 2200 (79%)

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

GeForce GT 220 GDDR3

Amazon.com

GeForce GT 430

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Model GeForce GT 220 GDDR3 GeForce GT 430
Manufacturer nVidia nVidia
Year October 2009 October 2010
Code Name GT216 GF108
Fab Process 40 nm 40 nm
Bus PCIe 2.0 PCIe x16
Memory 512 MB 512 MB
Core Speed 625 MHz 700 MHz
Shader Speed 1360 MHz 1400 MHz
Memory Speed 1012 MHz (2024 MHz effective) 900 MHz (1800 MHz effective)
Unified Shaders 48 96
Texture Mapping Units 16 16
Render Output Units 8 4
Bus Type GDDR3 GDDR3
Bus Width 128-bit 128-bit
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1
Power (Max TDP) 58 watts 60 watts
Shader Model 4.1 5.0
Bandwidth 32384 MB/sec 28800 MB/sec
Texel Rate 10000 Mtexels/sec 11200 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 2800 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 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 the texel rate, the better the video 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 one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

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