if both the $1800 and $2000 imacs both run at 3.6Ghz, why pay for the more expensive one?
The more expensive one has a *much much much* better GPU.
The better CPU is just a bonus at that point.
The 3.6Ghz Turbo Boost only kicks in if you are utilizing only 1 core which is fairly rare.
Actually, the 680mx is quite a beast
Where is this info from?
Sure not from http://www.apple.com/imac/performance/ ...
The 3.6Ghz Turbo Boost only kicks in if you are only utilizing 1 core which is fairly rare.
Where is this info from?
Sure not from http://www.apple.com/imac/performance/ ...
Max Turbo Frequency refers to the maximum single-core frequency that can be achieved with Intel® Turbo Boost Technology, which requires a PC with a processor with Intel Turbo Boost Technology capability. Intel Turbo Boost Technology performance varies depending on hardware, software, and overall system configuration. Check with your PC manufacturer on whether your system delivers Intel Turbo Boost Technology. See http://www.intel.com/technology/turboboost/ for more information.
no, not really. it depends on what it's used for
anyway, just guessing 2 of these processors are the ones used:
i5-3470S (2.9GHz)
i5-3470 (3.2GHz)
----------
If I had to guess, the turbo boost only kicks in when utilizing all 4 cores to their max. it just idle's at the base speed. kicking in upon 1 core sounds retarded.. but maybe
edit: just read the link above. looks like i'm probably right
meh.. neither have a good GPU so i don't care much about that.. I just want to know how the CPU works. are both CPU's identical after enabling turbo boost?
----------
I wouldnt be surprised if both 27" models have the exact same CPU (ie.. intel 2500k). where can i find out?
If I had to guess, the turbo boost only kicks in when utilizing all 4 cores to their max. it just idle's at the base speed. kicking in upon 1 core sounds retarded.. but maybe
meh.. neither have a good GPU so i don't care much about that.. I just want to know how the CPU works. are both CPU's identical after enabling turbo boost?
I wouldnt be surprised if both 27" models have the exact same CPU (ie.. intel 2500k). where can i find out?
Totally wrong. Current processors are limited by the heat they produce. More MHz = more heat. More cores running = more heat. Running fast for long time = more heat.
An Intel processor sold as "2.9 GHz" can run at 2.9 GHz with all cores running 24/7. If only one core is running, and the computer has been idle and is therefore quite cool, only then can it run at the higher "Turbo" speed. So if you need a computer running at full speed all the time, look at the lowest quoted speed.
The 680mx is as fast as an underclocked desktop 680mx(and Apple likely overclocked it like on their MBPs so it's probably on par) .
Is it fun not knowing what you're talking about?
interesting.
my i7 2600k runs @ 5.0Ghz overclocked, but i *think* idle's at around 2 or 3 Ghz when "not in use". I was thinking along the same terms here, but I see what you're saying.. I wonder how it will perform. I would think that it can indeed run all 4 cores on turbo boost when needed but i guess not
----------
see my post above.
To quote Intel:
The max is always single core.
That might be, but I was questioning your:
"The 3.6Ghz Turbo Boost only kicks in if you are only utilizing 1 core which is fairly rare."
How so? 3.6Ghz is the Max Turbo Boost frequency listed by Intel. I already quoted the Max Turbo Boost definition.
Btw even the Apple specs page lists "up to" which is the same way Intel describes the Max.
You stated above:
"The 3.6Ghz Turbo Boost only kicks in if you are only utilizing 1 core which is fairly rare."
Correct me if I am wrong, but I understood your statement as requirements for three of four cores to be idle (or near idle).
Or what exactly did you mean by "if you are only utilizing 1 core"???
You stated above:
"The 3.6Ghz Turbo Boost only kicks in if you are only utilizing 1 core which is fairly rare."
Correct me if I am wrong, but I understood your statement as requirements for three of four cores to be idle (or near idle).
Or what exactly did you mean by "if you are only utilizing 1 core"???
That is precisely what I meant. The 3.6GHz will only happen when 1 core is stressed. ...
I use a quadro so I should rephrase and say the GPU is not suitable for my needs. it does look like a worthwhile upgrade, though.
Got it. I thought that you said that NO Turbo Boost will get kicked on multiple cores at all.