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GeForce GT 430 1GB vs Radeon HD 3470 256MB

Intro

The GeForce GT 430 1GB makes use of a 40 nm design. nVidia has set the core frequency at 700 MHz. The GDDR3 RAM is set to run at a frequency of 900 MHz on this specific model. It features 96 SPUs as well as 16 Texture Address Units and 4 ROPs.

Compare those specs to the Radeon HD 3470 256MB, which has a clock speed of 800 MHz and a DDR2 memory frequency of 950 MHz. It also uses a 128-bit memory bus, and uses a 55 nm design. It features 40(8x5) SPUs, 4 TAUs, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 3470 256MB should be a little bit faster than the GeForce GT 430 1GB in general. (explain)

Radeon HD 3470 256MB 30400 MB/sec
GeForce GT 430 1GB 28800 MB/sec
Difference: 1600 (6%)

Texel Rate

The GeForce GT 430 1GB will be much (about 250%) more effective at texture filtering than the Radeon HD 3470 256MB. (explain)

GeForce GT 430 1GB 11200 Mtexels/sec
Radeon HD 3470 256MB 3200 Mtexels/sec
Difference: 8000 (250%)

Pixel Rate

The Radeon HD 3470 256MB is a bit (approximately 14%) more effective at anti-aliasing than the GeForce GT 430 1GB, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon HD 3470 256MB 3200 Mpixels/sec
GeForce GT 430 1GB 2800 Mpixels/sec
Difference: 400 (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

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GeForce GT 430 1GB

Amazon.com

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Radeon HD 3470 256MB

Amazon.com

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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

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Model GeForce GT 430 1GB Radeon HD 3470 256MB
Manufacturer nVidia AMD
Year October 2010 2008
Code Name GF108 RV620 PRO
Memory 1024 MB 256 MB
Core Speed 700 MHz 800 MHz
Memory Speed 1800 MHz 1900 MHz
Power (Max TDP) 60 watts (Unknown) watts
Bandwidth 28800 MB/sec 30400 MB/sec
Texel Rate 11200 Mtexels/sec 3200 Mtexels/sec
Pixel Rate 2800 Mpixels/sec 3200 Mpixels/sec
Unified Shaders 96 40(8x5)
Texture Mapping Units 16 4
Render Output Units 4 4
Bus Type GDDR3 DDR2
Bus Width 128-bit 128-bit
Fab Process 40 nm 55 nm
Transistors 585 million (Unknown) million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the 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 card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GT 430 1GB

Amazon.com

Check prices at:

Radeon HD 3470 256MB

Amazon.com

Check prices at:

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.

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