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GeForce GT 430 1GB vs Radeon HD 3650 256MB

Intro

The GeForce GT 430 1GB comes with clock speeds of 700 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 memory. It features 96 SPUs as well as 16 TAUs and 4 Rasterization Operator Units.

Compare those specifications to the Radeon HD 3650 256MB, which features a core clock speed of 725 MHz and a DDR2 memory speed of 800 MHz. It also makes use of a 128-bit memory bus, and uses a 55 nm design. It is made up of 120(24x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB 60 Watts
Radeon HD 3650 256MB 78 Watts
Difference: 18 Watts (30%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 430 1GB will be 13% quicker than the Radeon HD 3650 256MB overall, because of its greater bandwidth. (explain)

GeForce GT 430 1GB 28800 MB/sec
Radeon HD 3650 256MB 25600 MB/sec
Difference: 3200 (13%)

Texel Rate

The GeForce GT 430 1GB will be quite a bit (more or less 93%) better at texture filtering than the Radeon HD 3650 256MB. (explain)

GeForce GT 430 1GB 11200 Mtexels/sec
Radeon HD 3650 256MB 5800 Mtexels/sec
Difference: 5400 (93%)

Pixel Rate

The Radeon HD 3650 256MB should be a little bit (about 4%) better at anti-aliasing than the GeForce GT 430 1GB, and will be capable of handling higher resolutions while still performing well. (explain)

Radeon HD 3650 256MB 2900 Mpixels/sec
GeForce GT 430 1GB 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 1GB

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 1GB Radeon HD 3650 256MB
Manufacturer nVidia AMD
Year October 2010 2008
Code Name GF108 RV635 PRO
Memory 1024 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 information (measured in megabytes per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen 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 number of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GT 430 1GB

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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