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Unlocking Radeon HD 6950 2GB — tested

Unlocking Radeon HD 6950 2GB with following tests — for and against


Now it is time to make some final conclusion for our test. First things first.


  • Unlocking Radeon HD 6950 2GB card by flashing it with a HD 6970 BIOS deprives you from changing voltage for GPU via different overclocking tools and software. Don’t forget that with greater specs you get higher voltage voltage for graphics processor — the card will generate more heat and as a result will become nosier (due to fan speed increase) at full load. If this, however, does not bother you, including possible change of other parameters,then this method is right what you need.
  • Unlocking by flashing a patched BIOS will provide more headroom for possible overclocking. In addition, you can set a balance between performance and silence according to your needs.
  • Change of SP count, from 1408SP to 1536SP, almost did not affect the temperature level of card’s components — the main cause for additional heat generated/noise produced turns to be increased clocked coupled with higher voltage values.

No the most important thing — performance:

  • Major parts of test revealed the difference between stock clocked Radeon HD 6950 2GB and its variant, with specs like of Radeon HD 6970 2GB card, is within 10-11% range on average.
  • Radeon HD 6950 2GB with 1408SP and 1536SP version, both clocked the same, generally differ by about 1-3%, and only few games showed the advantage of bigger SP number that reached 7%. at high-res settings.

In author’s modest opinion the Unlocking topic is treated deeply enough, whereas, you are left to decide what setup is more suitable for your needs, while keeping in mind, that unlocking is confirmed for 2GB version of HD 6950 graphics cards of reference design only!


# Avatar Chris,

I picked up a Saphhire HD 6950 today. The one with dual fans and dual bios.
I was happy when I switched to the secondary bios and found the shaders unlocked. No flash necessary.

# Avatar Patrick,

doesnt work on my ASUS DCUII version. now it is unbooatble

# Avatar vralle,

What about default BIOS?

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