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GeForce GT 340 vs Radeon HD 3850 512MB

Intro

The GeForce GT 340 makes use of a 40 nm design. nVidia has clocked the core speed at 550 MHz. The GDDR5 memory is set to run at a frequency of 850 MHz on this specific model. It features 96 SPUs along with 32 TAUs and 8 ROPs.

Compare those specs to the Radeon HD 3850 512MB, which comes with core speeds of 668 MHz on the GPU, and 828 MHz on the 512 MB of GDDR3 RAM. It features 320(64x5) SPUs as well as 16 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 69 Watts
Radeon HD 3850 512MB 75 Watts
Difference: 6 Watts (9%)

Memory Bandwidth

Performance-wise, the GeForce GT 340 should in theory be a little bit superior to the Radeon HD 3850 512MB in general. (explain)

GeForce GT 340 54400 MB/sec
Radeon HD 3850 512MB 52992 MB/sec
Difference: 1408 (3%)

Texel Rate

The GeForce GT 340 will be a lot (more or less 65%) more effective at texture filtering than the Radeon HD 3850 512MB. (explain)

GeForce GT 340 17600 Mtexels/sec
Radeon HD 3850 512MB 10688 Mtexels/sec
Difference: 6912 (65%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 3850 512MB is a better choice, by far. (explain)

Radeon HD 3850 512MB 10688 Mpixels/sec
GeForce GT 340 4400 Mpixels/sec
Difference: 6288 (143%)

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

Amazon.com

Check prices at:

Radeon HD 3850 512MB

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 Radeon HD 3850 512MB
Manufacturer nVidia AMD
Year February 2010 Nov 19, 2007
Code Name GT215 RV670 PRO
Memory 512 MB 512 MB
Core Speed 550 MHz 668 MHz
Memory Speed 3400 MHz 1656 MHz
Power (Max TDP) 69 watts 75 watts
Bandwidth 54400 MB/sec 52992 MB/sec
Texel Rate 17600 Mtexels/sec 10688 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 10688 Mpixels/sec
Unified Shaders 96 320(64x5)
Texture Mapping Units 32 16
Render Output Units 8 16
Bus Type GDDR5 GDDR3
Bus Width 128-bit 256-bit
Fab Process 40 nm 55 nm
Transistors 727 million (Unknown) million
Bus PCIe x16 PCIe 2.0 x16/AGP 8x
DirectX Version DirectX 10.1 DirectX 10.1
OpenGL Version OpenGL 3.3 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's 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 are applied in one second. This 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 video card will be at handling 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 the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially 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 340

Amazon.com

Check prices at:

Radeon HD 3850 512MB

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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