AMD Shanghai/Deneb Review Thread

[Ghostbuster]

C2 45nm jumped a lot in Cinebench... thanks to the caches.

The main contributor was the Fast Radix-16 divider which speeds up its FPU operations.

And yes, I'm suspecting what you said. That score was 32 while the Tech Report always benches in 64.

EDIT: Still seems low. Way too low.

http://www.techwarelabs.com/reviews/.../index_5.shtml
http://www.sharkyextreme.com/hardwar...261_3756681__5

Those are 32-bit ones..

We know clock-for-clock that these Denebs are REALLY close to the Xeons in single core rendering... so wtf.
Tech Report 2.7Ghz Opteron Cinebench x64: Single core 3156

If we take this score, scale clock linearly to 3Ghz, times 3.9 (Phenom I speedup), we get 13676. The 32 bit scores are WAY too low.

Nope, you can't scale them up like that. Shanghai scaling probably a bit different in CB10 and this may also apply to Deneb.

TR shows 18616 for 8 cores. Thus speedup is (18616 / 3156 ) = 5.90

Thus scaling per core becomes (5.90 / 8) = 73.7%

Speedup for 4 cores is (73.7% * 4) = 2.95

Thus per core CB10 score hypothethically is (9746 / 2.95) = 3303

Hypothethically speaking, a 3GHz Phenom II scores 3303 per core.

For some odd reason, Shanghai/Deneb doesn't scale well in CB10.. unlike Phenom I...

[charged3800z24]

The main contributor was the Fast Radix-16 divider which speeds up its FPU operations.

Those are 32-bit ones..

Nope, you can't scale them up like that. Shanghai scaling probably a bit different in CB10 and this may also apply to Deneb.

TR shows 18616 for 8 cores. Thus speedup is (18616 / 3156 ) = 5.90

Thus scaling per core becomes (5.90 / 8) = 73.7%

Speedup for 4 cores is (73.7% * 4) = 2.95

Thus per core CB10 score hypothethically is (9746 / 2.95) = 3303

Hypothethically speaking, a 2.7GHz Phenom II scores 3303 per core.

For some odd reason, Shanghai/Deneb doesn't scale well in CB10.. unlike Phenom I...

But isn't CB10 memory sensitive?...nt so much on AMD's NB side but RAM timings and ram speed seem to show better on my runs...which would slow Shanghai down compared to Deneb

[Ghostbuster]

Multicore rendertime was 1minute 1 second.

Within striking range of QX9770... (about -3.6% per core, -1% multicore)

But isn't CB10 memory sensitive?...nt so much on AMD's NB side but RAM timings and ram speed seem to show better on my runs...which would slow Shanghai down compared to Deneb

I suspect the OCW scores lowly due to memory? Their 3DVantage score was a little bit low..

[Zucker2k]

Within striking range of QX9770... (about -3.6% per core, -1% multicore)

I suspect the OCW scores lowly due to memory? Their 3DVantage score was a little bit low..

Not bad at all.