A Question

Compare any two graphics cards:
VS

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 speed at 625 MHz. The GDDR3 memory runs at a frequency of 1012 MHz on this card. It features 48 SPUs along with 16 TAUs and 8 Rasterization Operator Units.

Compare those specifications to the GeForce GT 430, which features core clock speeds of 700 MHz on the GPU, and 900 MHz on the 512 MB of GDDR3 RAM. It features 96 SPUs as well as 16 TAUs and 4 ROPs.

Display Graphs

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(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

As far as performance goes, the GeForce GT 220 GDDR3 should theoretically be just a bit superior to 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 a little bit (more or less 12%) more effective at texture 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 should be a lot (approximately 79%) more effective at FSAA than the GeForce GT 430, and also should be capable of handling 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

Display Prices

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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

Display Specifications

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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 2024 MHz 1800 MHz
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: Bandwidth is the maximum amount of information (counted in MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of 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.

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