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GeForce GT 430 (OEM) vs Radeon HD 6870

Intro

The GeForce GT 430 (OEM) has a core clock frequency of 700 MHz and a GDDR3 memory speed of 900 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It is comprised of 96 SPUs, 16 Texture Address Units, and 4 ROPs.

Compare those specifications to the Radeon HD 6870, which uses a 40 nm design. AMD has set the core speed at 900 MHz. The GDDR5 RAM works at a frequency of 1050 MHz on this specific card. It features 1120 SPUs as well as 56 TAUs and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 (OEM) 60 Watts
Radeon HD 6870 151 Watts
Difference: 91 Watts (152%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6870 should theoretically be a lot superior to the GeForce GT 430 (OEM) in general. (explain)

Radeon HD 6870 134400 MB/sec
GeForce GT 430 (OEM) 28800 MB/sec
Difference: 105600 (367%)

Texel Rate

The Radeon HD 6870 will be a lot (more or less 350%) faster with regards to texture filtering than the GeForce GT 430 (OEM). (explain)

Radeon HD 6870 50400 Mtexels/sec
GeForce GT 430 (OEM) 11200 Mtexels/sec
Difference: 39200 (350%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 6870 is a better choice, by far. (explain)

Radeon HD 6870 28800 Mpixels/sec
GeForce GT 430 (OEM) 2800 Mpixels/sec
Difference: 26000 (929%)

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 (OEM)

Amazon.com

Check prices at:

Radeon HD 6870

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 (OEM) Radeon HD 6870
Manufacturer nVidia AMD
Year October 2010 October 2010
Code Name GF108 Barts XT
Memory 2048 MB 1024 MB
Core Speed 700 MHz 900 MHz
Memory Speed 1800 MHz 4200 MHz
Power (Max TDP) 60 watts 151 watts
Bandwidth 28800 MB/sec 134400 MB/sec
Texel Rate 11200 Mtexels/sec 50400 Mtexels/sec
Pixel Rate 2800 Mpixels/sec 28800 Mpixels/sec
Unified Shaders 96 1120
Texture Mapping Units 16 56
Render Output Units 4 32
Bus Type GDDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 585 million 1700 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in MB per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the graphics 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 most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GT 430 (OEM)

Amazon.com

Check prices at:

Radeon HD 6870

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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