Well said IDC.
My thinking is that at 28nm, Zacate/Ontario would be a formidable force in the Netbook/Tablet space. I'm sure AMD are working as fast as possible to release new Bobcat-based APUs on the smaller 28nm process. Hopefully TSMC would do better this time than they did with their...
If by slow you mean slower than the L3 cache in SB then maybe, but it won't be slower than the L3 in Phenom II.
Did you mean 20% faster per clock performance for each core? Honestly I only see BD having between 5-15% higher IPC than PII, but it should offer greatly improved power efficiency...
These clocks seem reasonable, although I believe BD's TurboCore will work on a per-Module basis. For example:
- 4 Module Turbo @3.6GHz
- 3 Module Turbo @3.8GHz
- 2 Module Turbo @4.0GHz
- 1 Module Turbo @4.2GHz
He meant the PII X6 right? As the PII X4 is 258mm^2 in size, and the PII X6 is 346mm^2. An 8-core BD will probably fall in between this range, which is another reason to believe that AMD should easily be able to push the clock speeds of an 8-core BD over X6 clocks (+3.4GHz).
Any estimates about the die size of BD?
As some have commented before, it seems AMD improved the cache density at the 32nm process to where they basically match Intel. Keeping this in mind I did my own calculations and came up with this die size range for BD :
2-Module/4-Core (4MB L2/4MB L3...
Well GlobalFoundries licensed T-RAM technology in 2009, and I think T-RAM could be a viable alternative to conventional SRAM, as long as there is no performance loss from using it.
It's possible we might see T-RAM used in future AMD processors at the 22nm and smaller nodes, as the improvement...
Actually we have enough info about BD to know that it wasn't designed to be an IPC demon. We also know that AMD simplified certain areas of the cores to save die space/power, and they increased the pipeline depth which could lower performance but allow higher clocks.
If you check right now...
That's a reasonable way to look at it, and it shows that in highly multi-threaded apps Bulldozer will shine. But for the average user most of the software currently in use runs on 1 to 4 cores, where IPC advantages of SB will keep it ahead. Unless BD is clocked noticeably higher (+4GHz).
It's very likely that what you mentioned will be the case. BD is built to clock pretty high, and I believe a 4GHz 4-Module BD would easily overtake the i7-2600 and i7-980X at highly multi-threaded apps. But at least initially, I think the base clocks for BD would be lower than that, and would...
Yes you are right. And I personally prefer it to be compared this way, especially Bulldozer vs. Sandybridge. But then we have to also look at other variables such as power draw and price. BD should bring in some impressive power efficiency, probably catching up to Intel in this regard.
If you check my speculation numbers from the other thread: http://forums.anandtech.com/showthread.php?t=2134559
You'll see that I had a 4-Module BD @ 3.4GHz being 52% faster than an i7-950 @ 3GHz when running 8 threads. This number is nothing extraordinary as you have 8 real cores vs. 4...
As IntelUser2000 explained, Nehalem's IPC is not 40% higher than Phenom II. I think it's more accurate to say:Stars 1, Nehalem 1.2, SB 1.4.
A better way to think of it is that the performance gain from running 2 threads on 1 module would be slightly less than when running 2 threads on two...
He mentioned that the same thing happened with the second card he got. Maybe it's a power/current issue with the PSU damaging the cards?
I had a similar issue in the past and formating and reinstalling everything solved it. Although in your case it might be just bad luck with the cards you got.
You got 3x 2GB memory DIMMS, either get 1 more 2GB (8GB total) and install it or remove one of the DIMMS (4GB). I think you are running in single-chanel mode right now. Also OC the NB to at least 2.4 or 2.6GHz.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.