Sapphire HD3870 512MB TOXIC Edition Review

Overclocking...will it break the mold?

Please note that overclocking the Sapphire HD3870 Toxic will void your warranty. Hardware Canucks takes no responsibility for any damage you may do to your graphics card through overclocking.

Core: 877Mhz
Memory: 2718Mhz (DDR)

The first thing you will probably recognize from the overclocks we achieved is the fact that we FINALLY have a HD3870 card that can pass the 865Mhz core speed barrier we have seen in the past. This is probably due to the fact that Sapphire uses a newer BIOS revision on this card versus the older versions we have seen with both the HIS and the ASUS cards we reviewed a while back. While this overclock isn’t much to write home about, it does represent a 100Mhz overclock over stock speed and 77Mhz over the speed Sapphire dictated their card runs at.

Meanwhile we got some very impressive clocks out of the memory which topped out 2718Mhz DDR. This is a stunning 466Mhz increase over stock clocks which while a few Mhz under our record of 2748Mhz we received with the original HIS card, it is nonetheless impressive.

As you can see, we FINALLY broke the 13,000 mark in 3DMark06.