Legit Video Card Reviews

Gigabyte Radeon HD 7770 OC Video Card Review

Manufacturer: Gigabyte
Product: GV-R777OC-1GD
Date: Mon, Mar 12, 2012 - 12:00 AM
Written By: Nathan Kirsch -
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Power Consumption

For testing power consumption, we took our test system and plugged it into a Kill-A-Watt power meter. For idle numbers, we allowed the system to idle on the desktop for 15 minutes and took the reading. For load numbers we measured the peak wattage used by the system while running the OpenGL benchmark FurMark 1.9.2 at 640x480 resolution. We also ran the game HAWX 2 and looped the benchmark three times and recorded the highest Wattage seen on the meter. 

Total System Power Consumption Results

Power Consumption Results: The AMD Radeon HD 7770 is a very energy efficient video card that has a typical board power of just 80 Watts in normal usage scenarios. The Gigabyte Radeon HD 7770 OC is factory overclocked and uses a larger 10cm cooling fan, so it will be interesting to see where this card falls. Our power meter showed our test system at 91 Watts when at an idle on the desktop with all of the Radeon HD 7770 cards. At full load with Furmark the Gigabyte Radeon HD 7770 OC used roughly the same amount of power as the XFX and AMD versions of this card, which is great considering the raised clock speeds. 

  Maximum Board Power
Typical Board Power
Long Idle Power
Radeon HD 7970
250W
~230W
<3W
 Radeon HD 7950
 200W
~180W
 <3W
 Radeon HD 7770
  100W  ~80W  <3W
 Radeon HD 7750
 75W
 ~55W  <3W

Next Page - Temperature & Noise Testing


Review Index
Page 1 - Gigabyte Radeon HD 7770 OC
Page 2 - Gigabyte Retail Box and Bundle
Page 3 - The Test System
Page 4 - Batman: Arkham City
Page 5 - Battlefield 3
Page 6 - Deus Ex: Human Revolution
Page 7 - H.A.W.X. 2
Page 8 - Metro 2033
Page 9 - 3DMark 11
Page 10 - Power Consumption
Page 11 - Temperature & Noise Testing
Page 12 - Gigabyte Radeon HD 7770 OC Overclocking
Page 13 - Final Thoughts & Conclusions