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GeForce GT 340 1GB vs Radeon HD 6750 1GB

Intro

The GeForce GT 340 1GB has a clock frequency of 550 MHz and a GDDR5 memory frequency of 850 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It features 96 SPUs, 32 Texture Address Units, and 8 Raster Operation Units.

Compare those specifications to the Radeon HD 6750 1GB, which uses a 40 nm design. AMD has set the core speed at 725 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this specific model. It features 720 SPUs as well as 36 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB 69 Watts
Radeon HD 6750 1GB 86 Watts
Difference: 17 Watts (25%)

Memory Bandwidth

Theoretically, the Radeon HD 6750 1GB should perform a bit faster than the GeForce GT 340 1GB in general. (explain)

Radeon HD 6750 1GB 64000 MB/sec
GeForce GT 340 1GB 54400 MB/sec
Difference: 9600 (18%)

Texel Rate

The Radeon HD 6750 1GB is much (about 48%) more effective at AF than the GeForce GT 340 1GB. (explain)

Radeon HD 6750 1GB 26100 Mtexels/sec
GeForce GT 340 1GB 17600 Mtexels/sec
Difference: 8500 (48%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 6750 1GB is a better choice, by far. (explain)

Radeon HD 6750 1GB 11600 Mpixels/sec
GeForce GT 340 1GB 4400 Mpixels/sec
Difference: 7200 (164%)

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 340 1GB

Amazon.com

Check prices at:

Radeon HD 6750 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 340 1GB Radeon HD 6750 1GB
Manufacturer nVidia AMD
Year February 2010 January 2011
Code Name GT215 Juniper Pro
Memory 1024 MB 1024 MB
Core Speed 550 MHz 725 MHz
Memory Speed 3400 MHz 4000 MHz
Power (Max TDP) 69 watts 86 watts
Bandwidth 54400 MB/sec 64000 MB/sec
Texel Rate 17600 Mtexels/sec 26100 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 96 720
Texture Mapping Units 32 36
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 727 million 1040 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.3 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 are processed per second. This number is calculated 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 one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core 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 output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GT 340 1GB

Amazon.com

Check prices at:

Radeon HD 6750 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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