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GeForce GT 340 1GB vs Radeon HD 3850 512MB

Intro

The GeForce GT 340 1GB uses a 40 nm design. nVidia has set the core frequency at 550 MHz. The GDDR5 RAM is set to run at a speed of 850 MHz on this specific card. It features 96 SPUs along with 32 TAUs and 8 ROPs.

Compare all of that to the Radeon HD 3850 512MB, which features core clock speeds of 668 MHz on the GPU, and 828 MHz on the 512 MB of GDDR3 memory. 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 1GB 69 Watts
Radeon HD 3850 512MB 75 Watts
Difference: 6 Watts (9%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 340 1GB is 3% quicker than the Radeon HD 3850 512MB overall, because of its greater data rate. (explain)

GeForce GT 340 1GB 54400 MB/sec
Radeon HD 3850 512MB 52992 MB/sec
Difference: 1408 (3%)

Texel Rate

The GeForce GT 340 1GB is a lot (more or less 65%) faster with regards to AF than the Radeon HD 3850 512MB. (explain)

GeForce GT 340 1GB 17600 Mtexels/sec
Radeon HD 3850 512MB 10688 Mtexels/sec
Difference: 6912 (65%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 3850 512MB is superior to the GeForce GT 340 1GB, and very much so. (explain)

Radeon HD 3850 512MB 10688 Mpixels/sec
GeForce GT 340 1GB 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 1GB

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 1GB Radeon HD 3850 512MB
Manufacturer nVidia AMD
Year February 2010 Nov 19, 2007
Code Name GT215 RV670 PRO
Memory 1024 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: Bandwidth is the largest amount of data (in units of MB per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure 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 applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GT 340 1GB

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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