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GeForce GT 320 vs Radeon HD 6670 (OEM) 1GB

Intro

The GeForce GT 320 features a GPU core clock speed of 540 MHz, and the 1024 MB of GDDR3 memory is set to run at 790 MHz through a 128-bit bus. It also is made up of 72 Stream Processors, 24 Texture Address Units, and 8 ROPs.

Compare those specifications to the Radeon HD 6670 (OEM) 1GB, which features GPU core speed of 800 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is made up 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) 1GB 63 Watts
Difference: 20 Watts (47%)

Memory Bandwidth

Theoretically, the Radeon HD 6670 (OEM) 1GB should be quite a bit faster than the GeForce GT 320 overall. (explain)

Radeon HD 6670 (OEM) 1GB 64000 MB/sec
GeForce GT 320 25280 MB/sec
Difference: 38720 (153%)

Texel Rate

The Radeon HD 6670 (OEM) 1GB is much (approximately 48%) faster with regards to AF than the GeForce GT 320. (explain)

Radeon HD 6670 (OEM) 1GB 19200 Mtexels/sec
GeForce GT 320 12960 Mtexels/sec
Difference: 6240 (48%)

Pixel Rate

The Radeon HD 6670 (OEM) 1GB will be quite a bit (about 48%) better at FSAA than the GeForce GT 320, and should be able to handle higher resolutions without slowing down too much. (explain)

Radeon HD 6670 (OEM) 1GB 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

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GeForce GT 320

Amazon.com

Check prices at:

Radeon HD 6670 (OEM) 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 320 Radeon HD 6670 (OEM) 1GB
Manufacturer nVidia AMD
Year February 2010 February 2011
Code Name GT215 Turks
Memory 1024 MB 1024 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 data (measured in megabytes per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GT 320

Amazon.com

Check prices at:

Radeon HD 6670 (OEM) 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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