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GeForce GT 430 1GB vs Radeon HD 3470 512MB

Intro

The GeForce GT 430 1GB uses a 40 nm design. nVidia has clocked the core frequency at 700 MHz. The GDDR3 RAM runs at a speed of 900 MHz on this particular model. It features 96 SPUs as well as 16 Texture Address Units and 4 ROPs.

Compare all of that to the Radeon HD 3470 512MB, which makes use of a 55 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR3 RAM runs at a frequency of 950 MHz on this particular model. It features 40(8x5) SPUs along with 4 Texture Address Units and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 3470 512MB will be 6% faster than the GeForce GT 430 1GB in general, due to its greater bandwidth. (explain)

Radeon HD 3470 512MB 30400 MB/sec
GeForce GT 430 1GB 28800 MB/sec
Difference: 1600 (6%)

Texel Rate

The GeForce GT 430 1GB should be quite a bit (approximately 250%) better at anisotropic filtering than the Radeon HD 3470 512MB. (explain)

GeForce GT 430 1GB 11200 Mtexels/sec
Radeon HD 3470 512MB 3200 Mtexels/sec
Difference: 8000 (250%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 3470 512MB is the winner, though not by far. (explain)

Radeon HD 3470 512MB 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 512MB

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 512MB
Manufacturer nVidia AMD
Year October 2010 2008
Code Name GF108 RV620 PRO
Memory 1024 MB 512 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 GDDR3
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: Bandwidth is the largest amount of data (counted in MB per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the 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 can be applied in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video 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 the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GT 430 1GB

Amazon.com

Check prices at:

Radeon HD 3470 512MB

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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