Difference between hardware and software for smt?
Do you refer to "HSW"? That means "Haswell".
Difference between hardware and software for smt?
Where did you pull those ipc numbers?
Some tractor fp test from the k7 days?
Is it poll time again? My take (what's at least somewhat likely):
- HSW IPC for integer, Ivy IPC for FP
- 3.0 GHz / 4.0 GHz :sneaky:
- SMT is at HSW level (they're working on it internally since Thunderbird according to my sources!)
- $999 for top model
You expect people to pay premium just because it is AMD?
How much is an 8 core intel?
Honest question, I don't know.
The sustainability of high boost clocks might help a bit. But it's just speculation anyway.You expect people to pay premium just because it is AMD?
Is it poll time again? My take (what's at least somewhat likely):
- HSW IPC for integer, Ivy IPC for FP
- 3.0 GHz / 4.0 GHz :sneaky:
- SMT is at HSW level (they're working on it internally since Thunderbird according to my sources!)
- $999 for top model
You naughty boyCinebench R10, R11.5, R15 and 3DPM (all used by Anandtech) for example result in 61.8% higher IPC for Broadwell-E. Add a single AVX2 workload to that and the average shoots beyond 70% (e.g. in HEVC BDW/SKL have > 100% higher IPC).
I used the results from Anandtech article (i7-6800K).
Excavator tested at 3.4GHz, score normalized to 3.8GHz with linear (1.117647x scale).
Cinebench R10 ST = 4426 vs. 7425 >> 67.75%
Cinebench R11.5 ST = 1.12 vs. 1.73 >> 54.46%
Cinebench R15 ST = 96 vs. 150 >> 56.25%
3DPM ST = 71.945 vs. 121.38 >> 68.71%
Average: 61.8%
Original scores for 3.4GHz (XV):
Cinebench R10 ST = 3960
Cinebench R11.5 ST = 1.00
Cinebench R15 ST = 86
3DPM ST = 64.3749
You naughty boy
Its not fair to assess a new member of the family by a fp heavy suite. Purely fp suite and more of the same.
Not everyone on this planet is a professor in physics and makes scientific calculations 24h. The rest of us - And by that i mean topplayers like google amazon facebook and me. We dont want to pay 500 euro for that fp tractor. It can go fp farming where its needed.
Is it poll time again? My take (what's at least somewhat likely):
- HSW IPC for integer, Ivy IPC for FP
- 3.0 GHz / 4.0 GHz :sneaky:
- SMT is at HSW level (they're working on it internally since Thunderbird according to my sources!)
- $999 for top model
Between SB to HSW IPC...My take:
- IPC between IB and Haswell.
- 3.2Ghz base / 3.7Ghz TB for low thread workloads (on top 8C/16T part)
- SMT at HSW level or better
- intel BDW hex core pricing (while performing a bit better)
Doubling of fp units - effectively like double the cores - should bring them a long way wouldnt you say ? plus a less confused frontend.In that case you can be relatively happy with the existing 15h family products. Nothing too badly wrong with their integer performance. FP is where they suffer and that's what needs to be remedied. That's the very reason why I chose FP workloads. Unless AMD cures the abysmal FP performance with Zen, they are as good as dead.
AMD can try to charge $999 for their top SKU all they want, it won't sell. Even with the specs above I see them not selling until $500 or less. People with deep pockets will want the best money can buy and that's still going to be Intel. AMD will do well in the sub $350 market but over that they won't sell well. Also remember that most people aren't enthusiasts and won't look at price/performance etc, they just don't. It's the same problem AMD has when competing against NVIDIA.
Is it poll time again? My take (what's at least somewhat likely):
- HSW IPC for integer, Ivy IPC for FP
- 3.0 GHz / 4.0 GHz :sneaky:
- SMT is at HSW level (they're working on it internally since Thunderbird according to my sources!)
- $999 for top model
3.2Ghz base, 4GHz turbo 1C, 3.5Ghz turbo 8C;
My take:
Broadwell IPC on integer, IVB IPC on FP;
I'm curious as to why you think Zen/Summit Ridge will do so much better in int workloads than in fp? AMD increased fp execution resources per core versus XV modules, but did nothing to increase int execution resources.
The only things I can think of that will help Summit Ridge outperform XV in int workloads will be improvements to the cache subsystem and frontend.
Lets have some betting here. Can some setup a combined freq and ipc test? Perhaps add smt efficiency of some sort and max consumer price?
I guess today for 8c part:
Hw ipc class
2.5 GHz boost 3.2
Smt sucks efficiency class
450 euro tops
https://m.reddit.com/r/Amd/comments/44hrj7/a_theoretical_calculation_about_of_zens_single/
Why would one have separate base and 8C turbo frequencies? :sneaky:
Updated test results to include the latest x265 bench which uses AVX much better and results in much better performance on Skylake ( Thanks Stilt for bringing it to my attn!)
==img snip==
Skylake 3M is Still sitting at 60% faster than exv (the updated bench bumped it up from 58%)
So I'm sticking with that for a mixture of Int FP SSE, and AVX2
Even if you forget all the more obscure and legacy stuff , and just focus on commonly used, current benches, throw in 1 AVX2 bench in every 5 - not a lot changes:
62% faster avg for both Cinebench 11.5 and r15
44% faster in Pov ray
60% faster in x265 w/out AVX2
53% faster 3Dmark(13) Physics
60% faster in non AVX2 x265 encoding
107% faster AVX2 x265
63% faster avg
Take AVX2 out completely and it's 55%
and at the end of they that's going to equal
10-15% Syklake ->Zen
7 - 12% Broadwell -> Zen
As for frequencies , I think I said before.. Betting they won't launch below 3Ghz. They'll delay launch before going below. Will see if i'm wrong in time
Spec/ Performance prediction:
3.0Ghz base - 3.6 Turbo
MT performance smack bang in the middle of 6850K and 6900K
ST/ < 8threaded performance 10-15% below all of the BW-E
Price - $499-$599 US
Do you refer to "HSW"? That means "Haswell".