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GeForce GT 430 vs Radeon HD 6450 (OEM) 1GB

Intro

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

Compare that to the Radeon HD 6450 (OEM) 1GB, which comes with a core clock frequency of 750 MHz and a GDDR5 memory speed of 900 MHz. It also makes use of a 64-bit bus, and makes use of a 40 nm design. It is made up of 160 SPUs, 8 TAUs, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB 31 Watts
GeForce GT 430 60 Watts
Difference: 29 Watts (94%)

Memory Bandwidth

Both cards have exactly the same bandwidth, so theoretically they should perform exactly the same. (explain)

Texel Rate

The GeForce GT 430 should be much (approximately 87%) faster with regards to texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GT 430 11200 Mtexels/sec
Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
Difference: 5200 (87%)

Pixel Rate

The Radeon HD 6450 (OEM) 1GB is just a bit (about 7%) faster with regards to AA than the GeForce GT 430, and also capable of handling higher resolutions without losing too much performance. (explain)

Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
GeForce GT 430 2800 Mpixels/sec
Difference: 200 (7%)

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 6450 (OEM) 1GB

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 6450 (OEM) 1GB
Manufacturer nVidia AMD
Year October 2010 February 2011
Code Name GF108 Caicos
Memory 512 MB 1024 MB
Core Speed 700 MHz 750 MHz
Memory Speed 1800 MHz 3600 MHz
Power (Max TDP) 60 watts 31 watts
Bandwidth 28800 MB/sec 28800 MB/sec
Texel Rate 11200 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 2800 Mpixels/sec 3000 Mpixels/sec
Unified Shaders 96 160
Texture Mapping Units 16 8
Render Output Units 4 4
Bus Type GDDR3 GDDR5
Bus Width 128-bit 64-bit
Fab Process 40 nm 40 nm
Transistors 585 million 370 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of information (measured in MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at 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 graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 430

Amazon.com

Check prices at:

Radeon HD 6450 (OEM) 1GB

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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