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GeForce GT 430 vs Radeon HD 3650 256MB

Intro

The GeForce GT 430 comes with a GPU core clock speed of 700 MHz, and the 512 MB of GDDR3 memory is set to run at 900 MHz through a 128-bit bus. It also features 96 Stream Processors, 16 Texture Address Units, and 4 ROPs.

Compare those specs to the Radeon HD 3650 256MB, which makes use of a 55 nm design. AMD has set the core speed at 725 MHz. The DDR2 memory is set to run at a frequency of 800 MHz on this specific card. It features 120(24x5) SPUs as well as 8 TAUs and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 60 Watts
Radeon HD 3650 256MB 78 Watts
Difference: 18 Watts (30%)

Memory Bandwidth

The GeForce GT 430 should theoretically be just a bit faster than the Radeon HD 3650 256MB overall. (explain)

GeForce GT 430 28800 MB/sec
Radeon HD 3650 256MB 25600 MB/sec
Difference: 3200 (13%)

Texel Rate

The GeForce GT 430 is much (about 93%) faster with regards to anisotropic filtering than the Radeon HD 3650 256MB. (explain)

GeForce GT 430 11200 Mtexels/sec
Radeon HD 3650 256MB 5800 Mtexels/sec
Difference: 5400 (93%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 3650 256MB is a better choice, though only just barely. (explain)

Radeon HD 3650 256MB 2900 Mpixels/sec
GeForce GT 430 2800 Mpixels/sec
Difference: 100 (4%)

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

Amazon.com

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Radeon HD 3650 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 Radeon HD 3650 256MB
Manufacturer nVidia AMD
Year October 2010 2008
Code Name GF108 RV635 PRO
Memory 512 MB 256 MB
Core Speed 700 MHz 725 MHz
Memory Speed 1800 MHz 1600 MHz
Power (Max TDP) 60 watts 78 watts
Bandwidth 28800 MB/sec 25600 MB/sec
Texel Rate 11200 Mtexels/sec 5800 Mtexels/sec
Pixel Rate 2800 Mpixels/sec 2900 Mpixels/sec
Unified Shaders 96 120(24x5)
Texture Mapping Units 16 8
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/AGP 8x
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number 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 processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core 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 quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GT 430

Amazon.com

Check prices at:

Radeon HD 3650 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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