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GeForce GT 220 GDDR3 vs GeForce GT 430

Intro

The GeForce GT 220 GDDR3 uses a 40 nm design. nVidia has clocked the core speed at 625 MHz. The GDDR3 RAM works at a speed of 1012 MHz on this model. It features 48 SPUs along with 16 Texture Address Units and 8 Rasterization Operator Units.

Compare all of that to the GeForce GT 430, which has GPU clock speed of 700 MHz, and 512 MB of GDDR3 memory running at 900 MHz through a 128-bit bus. It also features 96 Stream Processors, 16 Texture Address Units, 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

Theoretically, the GeForce GT 220 GDDR3 should be a small bit faster than the GeForce GT 430 in general. (explain)

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

Texel Rate

The GeForce GT 430 should be a bit (about 12%) more effective at anisotropic filtering 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

The GeForce GT 220 GDDR3 is quite a bit (approximately 79%) faster with regards to full screen anti-aliasing than the GeForce GT 430, and able to handle higher resolutions without slowing down too much. (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 MB per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units of the card by the core 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card can 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 colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

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