Powercolor Radeon HD 5770 PCS+ Vortex Review
Published: 16th August 2010 | Source: Powercolor | Price: £138.74 |
Intel Core i7 930 @ 4.00GHz (200 x 20)
Asus Rampage Extreme 2 Motherboard
Corsair Platinum 6GB 1333mhz
Powercolor Radeon HD 5770 1GB PCS+ VORTEX
OCZ 1000w Gold Series PSU
Windows 7 Home Premium x64
Our overclocking endeavours left us just 25MHz short of the magic 1GHz barrier on the GPU's Core Frequency. At 125MHz above reference frequencies and 100MHz above the PCS+ factory overclock, this is a very impressive achievement. Do note that this was carried out without any modification to the graphics card's voltage.
Sadly with a frequency of 4900MHz, the memory had next to no room for a further overclock. For the sake of stability, we left the RAM at it's default frequency.
Following an uneventful driver installation, we then proceeded to run our favourite stability test - Furmark. Following a 30 minute idle run, we proceeded to run the Stability Test with the graphics card's fans set to a fixed 50% duty speed. The results were repeated with our maximum stable overclock.
At our preset fan speed, we found the PCS+ Vortex cooler to be sufficiently quiet and considerably more capable than the reference cooler shipped on most other HD 5770's. Our 100MHz overclock on the core frequency resulted in a 4*c increase in temperatures, rising to a very comfortable 72*c. We expect most users to be satisfied with this performance.