From geekbench on my iMac 27" 8 GB i7
9526
Impressive. Not sure why, but on my i7 with 12 GB RAM I got:
8.400 the day I un-packed it, an average of several tests
7.900 this morning, after reinstalling the OS, again an average.
I now get the same geekbench score regardless whether I boot up from the internal drive or external USB one.
I can now see you're in 64-bit mode, but I'm really not sure what makes the difference in my case.
it would seem that Geekbench doesnt test the HDD speed, rather RAM/CPU etc. i wonder what the reason for your different scores is. did you change RAM configurations?
Yep - I actually installed more RAM. It came with 4 GB, I recently added another 8.
Maybe my hard-drive is simply failing, having come already with the noise defect, and the whole thing is slowing down. That's the only 'explanation' I can think of.
Yep - I actually installed more RAM. It came with 4 GB, I recently added another 8.
Maybe my hard-drive is simply failing, having come already with the noise defect, and the whole thing is slowing down. That's the only 'explanation' I can think of.
You added more RAM yourself and got lower scores? What if you take the RAM back out?
For me, the $200 upgrade is a no-brainer...
Bryan
Wow, these scores are really high. What am I doing wrong...
Nothing, that's a good score in the 32-bit version of Geekbench. If you try running the 64-bit version the score is bumped to about 9500.
not me
but i saw this ..
very impressive .. 12,218
http://browse.geekbench.ca/geekbench2/view/189502
not me
but i saw this ..
very impressive .. 12,218
http://browse.geekbench.ca/geekbench2/view/189502
hmm pretty much. the OSX kernel 32-bit can already run the 64-bit applications as we already know, the main benefits of booting in 64-bit appear to do with RAM and things like that.From what Ive been reading, the only benefit to booting into 64 at this time is a better geekbench score, am I right?
Hmmmm. Wonder if that person has experienced any problems yet with overclocking the CPU to 3.86 GHz?
Maybe I dont understand these scores but why the large disparity between all these i7s? I would think they would all run around the same numbers, or at least within a couple hundred?
interesting overclocking there... the score is impressive
that's what my 8 core 3.2ghz macpro benchmarks at in geekbench 64! but i wonder how stable the system is.
I'm not a technical person - just a designer. I've got my head around cores and hyper threading up to a point.
I understand that it kicks in the more programmes you have open at the same time.
But would it be noticeable if I opened some really big files in Photoshop at once - or is it only the amount of programmes/software running concurrently?
Would it make it more sellable in 4-5 years? Should I wait 2-3 months?
Right, heregoes - a brief history of how processors work and how programs may make use of the tech.
Initially, when we had one processor core and no multi threading. Programs were calculated a bit at a time, written in threads. A thread is basically a stream of code that makes up a program. Many programs (if not all) have more than one thread.
When only one processor core existed, the processors work was dished out between eeach program in quick succession. Giving the impression that many things were happening at once. Once each program was finished with its turn of a thread, it would release the processor an give other programs a turn. This was co-operative multi-tasking.
This had problems though, if a program crashed it wouldnt give control of the processor back to everyone else, and a system would hang.
Pre-Emptive multi tasking solved this, whereby the OS would play nanny and stop a failing program from hogging the processor, allowing more efficient use of the processor and an apparently quicker system. Still only doing ONE thing at a time, but fast enough that us mortals thought it was multi tasking.
Then along came hyperthreading. Programs rely on data going into and out of them in order to function. However a lot of the time the data transfers are slower than the processor could run them, in these situations threads would halt waiting for the information before carrying on with the thread. This is where hyperthreading comes in. Hyperthreading allows (in simple terms) the processor to start ploughing through another thread which is independant of the first one, whilst the first one is waiting for data to be prepared for use. Once it's ready, the processor jumps back to the higher priority thread.
Again, this is still only doing one thing at a time, but now the processor is being used more effectively, so an even faster (apparent) system for us.
The next main step here is multi cores. Which is literally what is says on the tin. Two or more cores can run two or more threads simultaneously. Meaning faster times again. In order for this to work though the programs have to be written intelligently. For example if thread 2 requires the result of thread 1 to run then they cant both be run at the same time - because thread 1 has to finish first. This is a simple example but my point is that programs have to have threads written in such a way that they can be run simultaneously now. The more cores you have, the more intelligent the programming needs to be to make proper use of the extra ability.
Last thing on the cards is turbo boost - this is pretty simple though. Basically the processor slows down one or more of its multiple cores and uses the extra heat / power allowance on the die to boost the clock frequency of the other core, this allows a single thread to be completed faster, for programs which are not happy with the whole simultaneous thread business.
I hope this makes it clearer - It is a SIMPLE description to get the ideas of whats going on in your head. Other people may notice that its not totally technically accurate but its a good image of what's going on I think.
If you've any more questions feel free to PM me or ask!![]()
Impressive. Not sure why, but on my i7 with 12 GB RAM I got:
8.400 the day I un-packed it, an average of several tests
7.900 this morning, after reinstalling the OS, again an average.
I now get the same geekbench score regardless whether I boot up from the internal drive or external USB one.
I can now see you're in 64-bit mode, but I'm really not sure what makes the difference in my case.