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GeForce GT 430 vs Radeon HD 3650 256MB

Intro

The GeForce GT 430 makes use of a 40 nm design. nVidia has clocked the core frequency at 700 MHz. The GDDR3 memory is set to run at a frequency of 900 MHz on this model. It features 96 SPUs as well as 16 TAUs and 4 Rasterization Operator Units.

Compare that to the Radeon HD 3650 256MB, which has a GPU core clock speed of 725 MHz, and 256 MB of DDR2 RAM running at 800 MHz through a 128-bit bus. It also is made up of 120(24x5) Stream Processors, 8 TAUs, and 4 ROPs.

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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

Theoretically speaking, the GeForce GT 430 is 13% quicker than the Radeon HD 3650 256MB in general, due to its greater bandwidth. (explain)

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

Texel Rate

The GeForce GT 430 should be much (about 93%) better at 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 running with a high screen resolution is important to you, then the Radeon HD 3650 256MB is the winner, but only just. (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

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.

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: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 processed in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max 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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