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Owen3820

macrumors newbie
Original poster
Jul 17, 2018
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USA
I know there have been throttling issues but is it still worth it to get the i9? Do the i7 and the i9 have the same power consumption?
 
It's too early to get a clear answer on that, I feel it's a lateral upgrade at best, and probably a downgrade for most people (but that's just my opinion).
 
Maybe read some reviews before dropping upwards of $3000 US.

Consensus seems to be that it's a downgrade in performance once the thermal envelope has been reached. YMMV.
 
the i7 2017 mbp performed better than the i9 2018 mbp in the testing done by dave2d
 
Geekbench on the other hand gives the i9 a clear lead, with with 22.500 points vs 21.175 points for the next-best 2018 model, or 15.550 for last year top model. It's too early to draw conclusions here.
 
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Geekbench on the other hand gives the i9 a clear lead, with with 22.500 points vs 21.175 points for the next-best 2018 model, or 15.550 for last year top model. It's too early to draw conclusions here.

Maybe Geekbench doesn't run for long enough to rule out throttling ?
 
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Watching this I would say no

Not good, not good at all :( My primary W10 notebook with the 8750H holds up extremely well. TBH I don't see the point of Apple using this level of hardware only for it to be crippled by poor design choice...
2018-06-10-05h40-Frequency-Bus.png

3 hours full load...

Q-6
 
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Is it worth purchasing a Ferrari limited to 100km/h for 500 000$?
 
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What about the i7's and the 13"'s ??

Have to say if I had ordered one of these i9's, I would now be cancelling it!
 
Maybe Geekbench doesn't run for long enough to rule out throttling ?

It doesn't which is why I personally think it's a waste of time and for those who just want to brag about big number's...

Try the OCCT stability tests or hit the system repeatedly with Cinebench R15, a 10 second benchmark is basically meaningless.

Q-6
 
The i9 will get you more cores.

If you run workloads that can make use of more cores then yes, maybe.

But the whole macbook lineup at the moment, hardware wise, is a joke. Well, the 12" is reasonably good at what it is aimed at, assuming the keyboard issues are fixed (will give apple benefit of the doubt for comparison purposes, but i wouldn't buy one yet). But that USB-C port should have thunderbolt.

That said, all machines throttle to some degree these days.

They make use of thermal headroom if any to temporarily raise clocks. Sometimes that headroom is only available for short bursts.

For most desktop/notebook users their workload is quite bursty, so this works well.

If your processor is running at its base clock or faster, it is NOT throttling. The base clock is the only speed you're supposed to EXPECT from a CPU. That's the clock it is designed to be able to sustain in the rated TDP. If you have great cooling (and stuffing an i9 in a modern macbook is NOT an example of that) then you can maybe sustain the turbo clock. But the CPU itself is only designed to be able to sustain the BASE clock, at the heat dissipation it is rated for.

TLDR: if you actually want decent performance in 2018, you shouldn't be looking at Macbooks.
 
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The question:
"Is it worth it to get 2018 MBP with core i9 despite throttling if price is no object?"

The answer:
Sure... if you've got $$$ to throw away and don't care in which direction you toss it..! ;)
 
Geekbench on the other hand gives the i9 a clear lead, with with 22.500 points vs 21.175 points for the next-best 2018 model, or 15.550 for last year top model. It's too early to draw conclusions here.

People in the real world don’t run benchmarks for a living.
 
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Something to consider... those getting the i9 that need maximum performance could also get a nice cooling pad and use it when you're trying to run the high level/prolonged CPU tasks, and otherwise expect the system to run on par with the i7 off the extra cooling...
 
Well, if the Core i9 is throttled, I don't see the point, its just bragging rights. You can't blame Apple either due to the thermal envelope. If you have the money, splurge on it, but I think a more practical choice if you were to buy one of these 2018 models is to spend the money on the RAM, Core i7 and SSD storage if you can.
 
I know there have been throttling issues but is it still worth it to get the i9? Do the i7 and the i9 have the same power consumption?

Don't believe everything you read. Most for-profit media outlets have agendas. I would do your own testing to be sure before jumping the gun about an issue that may not even exist.
 
Is it worth purchasing a Ferrari limited to 100km/h for 500 000$?
If the price is no object like OP said, then hell yeah! I’d love to drive a Ferrari, even more so once an everyday basis, regardless of a 100km/h limit.
 
If what is being reported is correct - that the i9 after throttling is basically the same as the BASE i7 - then get the i7 and save your $$$
 
It all depends on your workflow. In mine I see a bump of 30%+, so I'm very happy. And I believe Apple rushed these out and we'll see a firmware update that incorporates the Intel microcode updates and optimizations for this processor.
 
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I saw real workflow benchmarks seeing a decrease in rendering time in the i9. For the throttling problem I think Apple will release a firmware update to tweak the time for the fans to kick in.
 
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