Gigabyte HD7870 Overclock Review (Windforce 3X)

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Today we are looking at the latest card from Gigabyte, the HD7870 Overclock Edition which is supplied with a custom cooler, comprising not two, but three fans. This is the first custom cooled HD7870 we have looked at since the launch of the reference card on March 5th. Gigabyte claim the card is almost silent thanks to a proprietary ‘anti turbulence’ fan design.

There are certainly no shortage of buzzwords in the graphics sector from all the leading manufacturers. Gigabyte are promoting their ‘Windforce 3X’ cooling solution which is a triple fan solution with patented anti turbulence inclined fans and twin copper heat pipes. We already tested the reference HD7870 and our results highlighted that it didn’t produce a significant amount of heat.

Gigabyte have opted for this hardcore fan design clearly to try and reduce noise emissions to a minimum. They say their ‘Triangle Cool’ Technology (another patent pending) ensures that heat is dissipated as quickly as possible.

ACC 0968 DxO Gigabyte HD7870 Overclock Review (Windforce 3X)

Product AMD HD7970 AMD HD7950 Gigabyte HD7870 Overclock Edition
AMD HD7850
Core Clock speed 925mhz 800mhz 1000mhz (1,100mhz) 860mhz
Transistors 4.31 billion 4.31 billion 2.8 billion 2.8 billion
Stream Processors 2,048 1,792 1,280 1,024
Compute Performance 3.79 TFLOPS 2.87 TFLOPS 2.56 TFLOPS 1.76 TFLOPS
Texture Units 128 112 80 64
Texture Fillrate 118.4 GT/s 89.6 GT/s 80 GT/s 55.0 GT/s
ROPs 32 32 32 32
Pixel Fillrate 29.6 GP/s 25.6 GP/s 32.0 GP/s 27.52 GP/s
Z/Stencil 128 128 128 128
Memory Type 3GB GDDR5 3GB GDDR5 2GB GDDR5 2GB GDDR5
Memory Clock 1,375mhz 1,250mhz 1,200mhz 1,200mhz
Memory Data Rate 5.5 GBps 5.0 Gbps 4.8 Gbps 4.8 Gbps
Memory Bandwidth 264 GB/s 240 GB/s 153.6 GB/s 153.6 GB/s

Gigabyte have increased the core clock speed from 1,000mhz to 1,100mhz. A significant increase.

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Rating: 5.0/5 (1 vote cast)
Gigabyte HD7870 Overclock Review (Windforce 3X), 5.0 out of 5 based on 1 rating
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