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GeForce GT 430 vs Radeon HD 6770 1GB

Intro

The GeForce GT 430 comes with a core clock frequency of 700 MHz and a GDDR3 memory speed of 900 MHz. It also makes use of a 128-bit memory bus, and uses a 40 nm design. It is made up of 96 SPUs, 16 TAUs, and 4 Raster Operation Units.

Compare those specifications to the Radeon HD 6770 1GB, which features clock speeds of 900 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 memory. It features 800 SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 60 Watts
Radeon HD 6770 1GB 108 Watts
Difference: 48 Watts (80%)

Memory Bandwidth

Performance-wise, the Radeon HD 6770 1GB should in theory be quite a bit superior to the GeForce GT 430 in general. (explain)

Radeon HD 6770 1GB 67200 MB/sec
GeForce GT 430 28800 MB/sec
Difference: 38400 (133%)

Texel Rate

The Radeon HD 6770 1GB will be a lot (approximately 221%) better at texture filtering than the GeForce GT 430. (explain)

Radeon HD 6770 1GB 36000 Mtexels/sec
GeForce GT 430 11200 Mtexels/sec
Difference: 24800 (221%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6770 1GB is superior to the GeForce GT 430, and very much so. (explain)

Radeon HD 6770 1GB 14400 Mpixels/sec
GeForce GT 430 2800 Mpixels/sec
Difference: 11600 (414%)

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 6770 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 6770 1GB
Manufacturer nVidia AMD
Year October 2010 January 2011
Code Name GF108 Juniper XT
Memory 512 MB 1024 MB
Core Speed 700 MHz 900 MHz
Memory Speed 1800 MHz 4200 MHz
Power (Max TDP) 60 watts 108 watts
Bandwidth 28800 MB/sec 67200 MB/sec
Texel Rate 11200 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 2800 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 96 800
Texture Mapping Units 16 40
Render Output Units 4 16
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 585 million 1040 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 430

Amazon.com

Check prices at:

Radeon HD 6770 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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