re: And the results show that AMD doesn't have an advantage in SPECint_rate, and only a small advantage in SPECfp_rate.
From your chosen AMD platform, SPECint_rate = (41.4,56.0) for (2GHz,3GHz). That is 71% scaling, compared to 52% I showed for Clovertown, picking the very best scores available with an identical platform and testing date.
For SPECfp_rate, we have (39.7,51.1) for (2GHz,3GHz). That's 57% scaling vs. 36% for Clovertown.
You bring up the point that Intel dual-core C2D scales slightly better than quad-core [though still below AMD dual-core]. Therefore, you assume that Barcelona will scale more poorly than DC Opteron. However, there are no core changes between Woodcrest and Clovertown, so this is natural. In AMD's case, there ARE significant core improvements, so I would expect significant improvement in scalability.
Whatever, time will tell.
Petz |
