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GeForce GT 320 vs Radeon HD 6670 (OEM)

Intro

The GeForce GT 320 has core speeds of 540 MHz on the GPU, and 790 MHz on the 1024 MB of GDDR3 memory. It features 72 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.

Compare all that to the Radeon HD 6670 (OEM), which features a core clock frequency of 800 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 480 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320 43 Watts
Radeon HD 6670 (OEM) 63 Watts
Difference: 20 Watts (47%)

Memory Bandwidth

Theoretically, the Radeon HD 6670 (OEM) should perform a lot faster than the GeForce GT 320 in general. (explain)

Radeon HD 6670 (OEM) 64000 MB/sec
GeForce GT 320 25280 MB/sec
Difference: 38720 (153%)

Texel Rate

The Radeon HD 6670 (OEM) is a lot (about 48%) more effective at texture filtering than the GeForce GT 320. (explain)

Radeon HD 6670 (OEM) 19200 Mtexels/sec
GeForce GT 320 12960 Mtexels/sec
Difference: 6240 (48%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 6670 (OEM) is the winner, and very much so. (explain)

Radeon HD 6670 (OEM) 6400 Mpixels/sec
GeForce GT 320 4320 Mpixels/sec
Difference: 2080 (48%)

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

Display Prices

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GeForce GT 320

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 320 Radeon HD 6670 (OEM)
Manufacturer nVidia AMD
Year February 2010 February 2011
Code Name GT215 Turks
Memory 1024 MB 512 MB
Core Speed 540 MHz 800 MHz
Memory Speed 1580 MHz 4000 MHz
Power (Max TDP) 43 watts 63 watts
Bandwidth 25280 MB/sec 64000 MB/sec
Texel Rate 12960 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 6400 Mpixels/sec
Unified Shaders 72 480
Texture Mapping Units 24 24
Render Output Units 8 8
Bus Type GDDR3 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: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics 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 number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GT 320

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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