tipoo

commentzilla said:

vadimyuryev said:

Chiumeister said:

Hey,
Another test had write speed on the 1TB SSD version at 2500+
https://www.macrumors.com/2018/07/13/2018-macbook-pro-fastest-laptop-ssd-ever/

You had under 700 for the 256GB SSD internal, did you confirm this?

Thanks

That's last years 2017 non-touch bar.

Our 2018 13" Touch Bar MacBook Pro with 256GB SSD got 1151 Write speed.
The reason it's faster on the 1TB is because it probably uses 2x 512GB SSD's in RAID 0 to double the speed. (Not 100% sure though)

Edit: They actually duplicated the files, so that crazy speed is actually due to the APFS file system.

This is from a test of the iMacPro from ARS.... The T2 not the CPU handles the SDD.

"Note also that the iMac Pro actually has two SSDs working together, controlled by the T2 chip. It's an unusual solution, but it works well." - ARS

It very well appears that the 2018 MBP numbers could be correct... if the 2018 15" 512GB SSD is two 256GB SSD working together!

https://arstechnica.com/gadgets/2018/02/imac-pro-review-not-a-consumer-machine-but-not-quite-perfect-for-pros-either/4/#h4

When SSDs are in RAID, each bank of NAND has its own controller. The iMac Pro had two banks of NAND, but connected to one T2 controller, so it's more like a physically split single SSD. The results are great regardless, but not what you would see with RAID 0, this seems a misconception that never got corrected online, the uplift is probably from T2 real time encryption. 

And the split SSD design doesn't seem suited for a space constrained laptop, but we'll see with the teardown! 

ascii said:

tipoo said:

Is there any detail anywhere on what the Radeon Pro 555X is?

Does the X just denote the 4GB VRAM in all tiers now, and the chip is largely unchanged from the 555? That's what it sounds like, I'm surprised there's no Vega though. The 555 in turn was the same as the 455, so the GPU itself is largely unchanged from the 2016 mid tier model.

I was also hoping for Vega, but with only an X added it must surely still be Polaris.

By the Radeon RX 560X, it looks like a very minor clock speed bump, same as the 560 and 555 already were. 

Is there any detail anywhere on what the Radeon Pro 555X is?

Does the X just denote the 4GB VRAM in all tiers now, and the chip is largely unchanged from the 555? That's what it sounds like, I'm surprised there's no Vega though. The 555 in turn was the same as the 455, so the GPU itself is largely unchanged from the 2016 mid tier model.

Mac Mini with the 8th gen ULV quads would be pretty sweet. Hopefully they revert from the stupid metal cage making upgrades harder for no reason, didn’t get smaller or even more powerful or anything, they just added it expressly to stop upgrades which was a piss off.

lkrupp said:

fastasleep said:

Next we'll see a hexacore 15" I hope.

Do these benchmarks generally get submitted by accident, or are they purposely seeded for some marketing reason?

Benchmarks are a techie’s wet dream but doesn’t the operating system and app software have to be able to use multiple cores in order to see actual benefits?

macOS apps since Snow Leopard using Grand Central Dispatch will already scale pretty well. 

Furthermore, if a problem is inherently serial, we get this tasty 4.5GHz single core turbo from this new chip too, so even non-scalable problems are boosted. 

Further-er more, even if one program doesn't scale well, you can still multitask and do other things at the same time on more cores. 


I absolutely notice a difference going from my 2015 15" quad to current dual core 13"s, even just being a quick ADHD prosumer, lol.