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GeForce GT 430 1GB vs Radeon HD 6970

Intro

The GeForce GT 430 1GB features a core clock speed of 700 MHz and a GDDR3 memory frequency of 900 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It is comprised of 96 SPUs, 16 Texture Address Units, and 4 ROPs.

Compare that to the Radeon HD 6970, which has a core clock frequency of 880 MHz and a GDDR5 memory speed of 1375 MHz. It also makes use of a 256-bit bus, and makes use of a 40 nm design. It is made up of 1536 SPUs, 96 Texture Address Units, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB 60 Watts
Radeon HD 6970 250 Watts
Difference: 190 Watts (317%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6970 should be 511% faster than the GeForce GT 430 1GB overall, due to its greater data rate. (explain)

Radeon HD 6970 176000 MB/sec
GeForce GT 430 1GB 28800 MB/sec
Difference: 147200 (511%)

Texel Rate

The Radeon HD 6970 should be quite a bit (more or less 654%) better at AF than the GeForce GT 430 1GB. (explain)

Radeon HD 6970 84480 Mtexels/sec
GeForce GT 430 1GB 11200 Mtexels/sec
Difference: 73280 (654%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 6970 is a better choice, by a large margin. (explain)

Radeon HD 6970 28160 Mpixels/sec
GeForce GT 430 1GB 2800 Mpixels/sec
Difference: 25360 (906%)

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 6970

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 6970
Manufacturer nVidia AMD
Year October 2010 December 2010
Code Name GF108 Cayman XT
Memory 1024 MB 2048 MB
Core Speed 700 MHz 880 MHz
Memory Speed 1800 MHz 5500 MHz
Power (Max TDP) 60 watts 250 watts
Bandwidth 28800 MB/sec 176000 MB/sec
Texel Rate 11200 Mtexels/sec 84480 Mtexels/sec
Pixel Rate 2800 Mpixels/sec 28160 Mpixels/sec
Unified Shaders 96 1536
Texture Mapping Units 16 96
Render Output Units 4 32
Bus Type GDDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 585 million 2640 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 max amount of data (measured in megabytes per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better 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 amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GT 430 1GB

Amazon.com

Check prices at:

Radeon HD 6970

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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