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Radeon HD 4350 vs Radeon HD 6670 (OEM) 1GB

Intro

The Radeon HD 4350 has a core clock frequency of 575 MHz and a DDR2 memory frequency of 500 MHz. It also uses a 64-bit memory bus, and makes use of a 55 nm design. It is comprised of 80(16x5) SPUs, 8 Texture Address Units, and 4 ROPs.

Compare that to the Radeon HD 6670 (OEM) 1GB, which has a core clock speed of 800 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is comprised of 480 SPUs, 24 Texture Address Units, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4350 22 Watts
Radeon HD 6670 (OEM) 1GB 63 Watts
Difference: 41 Watts (186%)

Memory Bandwidth

In theory, the Radeon HD 6670 (OEM) 1GB will be 700% quicker than the Radeon HD 4350 overall, because of its greater data rate. (explain)

Radeon HD 6670 (OEM) 1GB 64000 MB/sec
Radeon HD 4350 8000 MB/sec
Difference: 56000 (700%)

Texel Rate

The Radeon HD 6670 (OEM) 1GB will be a lot (approximately 317%) more effective at texture filtering than the Radeon HD 4350. (explain)

Radeon HD 6670 (OEM) 1GB 19200 Mtexels/sec
Radeon HD 4350 4600 Mtexels/sec
Difference: 14600 (317%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6670 (OEM) 1GB is the winner, and very much so. (explain)

Radeon HD 6670 (OEM) 1GB 6400 Mpixels/sec
Radeon HD 4350 2300 Mpixels/sec
Difference: 4100 (178%)

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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Radeon HD 4350

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 Radeon HD 4350 Radeon HD 6670 (OEM) 1GB
Manufacturer AMD AMD
Year Sep 30, 2008 February 2011
Code Name RV710 Turks
Memory 512 MB 1024 MB
Core Speed 575 MHz 800 MHz
Memory Speed 1000 MHz 4000 MHz
Power (Max TDP) 22 watts 63 watts
Bandwidth 8000 MB/sec 64000 MB/sec
Texel Rate 4600 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 2300 Mpixels/sec 6400 Mpixels/sec
Unified Shaders 80(16x5) 480
Texture Mapping Units 8 24
Render Output Units 4 8
Bus Type DDR2 GDDR5
Bus Width 64-bit 128-bit
Fab Process 55 nm 40 nm
Transistors 242 million 715 million
Bus PCIe 2.0 x16, PCI PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at 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 video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably 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

Radeon HD 4350

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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