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Re: Wapr3D SI: the fastest card

Subject: Re: Wapr3D SI: the fastest card
by interrogative on 2015/4/2 16:32:52

@Raziel & kas1e

Actually, it should depend on which R7 250 is being used. The 250X is like a rebranded 8760 or 7770 (Cape Verde XT chipset). The difference is that the 250X has 4.5GHz memory instead of 1125MHz.

The R7 250E is supposed to be a rebranded HD 7750 (Cape Verde PRO). The results of the 250E being slower than the 7750 seems strange given the difference in memory speed is again that of 4.5GHz versus 1125MHz. With that said, I've seen sites that say the effective memory speed of the 7750 is actually 4.5GHz, not 1125MHz. If that is the case, then there should be little difference between the two.

I've seen single slot variants of both the HD 7750 and R7 250E. Since the above tests suggest the 7750 is faster, and the price is slightly lower than the 250E, I may have to change my plans for my next graphics card purchase.
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