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GeForce GT 340 1GB vs Radeon HD 6670 (OEM)

Intro

The GeForce GT 340 1GB uses a 40 nm design. nVidia has set the core frequency at 550 MHz. The GDDR5 RAM works at a frequency of 850 MHz on this particular card. It features 96 SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.

Compare those specs to the Radeon HD 6670 (OEM), which comes with core speeds of 800 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR5 RAM. It features 480 SPUs as well as 24 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 63 Watts
GeForce GT 340 1GB 69 Watts
Difference: 6 Watts (10%)

Memory Bandwidth

The Radeon HD 6670 (OEM) should theoretically be just a bit faster than the GeForce GT 340 1GB overall. (explain)

Radeon HD 6670 (OEM) 64000 MB/sec
GeForce GT 340 1GB 54400 MB/sec
Difference: 9600 (18%)

Texel Rate

The Radeon HD 6670 (OEM) is a bit (about 9%) faster with regards to AF than the GeForce GT 340 1GB. (explain)

Radeon HD 6670 (OEM) 19200 Mtexels/sec
GeForce GT 340 1GB 17600 Mtexels/sec
Difference: 1600 (9%)

Pixel Rate

The Radeon HD 6670 (OEM) is a lot (about 45%) better at AA than the GeForce GT 340 1GB, and capable of handling higher resolutions better. (explain)

Radeon HD 6670 (OEM) 6400 Mpixels/sec
GeForce GT 340 1GB 4400 Mpixels/sec
Difference: 2000 (45%)

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 6670 (OEM)

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 6670 (OEM)
Manufacturer nVidia AMD
Year February 2010 February 2011
Code Name GT215 Turks
Memory 1024 MB 512 MB
Core Speed 550 MHz 800 MHz
Memory Speed 3400 MHz 4000 MHz
Power (Max TDP) 69 watts 63 watts
Bandwidth 54400 MB/sec 64000 MB/sec
Texel Rate 17600 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 6400 Mpixels/sec
Unified Shaders 96 480
Texture Mapping Units 32 24
Render Output Units 8 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 727 million 715 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.3 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it must 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

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

Display Prices

Hide Prices

GeForce GT 340 1GB

Amazon.com

Check prices at:

Radeon HD 6670 (OEM)

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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