2 ms·

Any idea how these compare to the 2.9Ghz dual core i7 in the 2015 MacBook Pro 13"? I'm expecting these to be slower, but have no concept of what an apples to a

Any idea how these compare to the 2.9Ghz dual core i7 in the 2015 MacBook Pro 13"? I'm expecting these to be slower, but have no concept of what an apples to apples comparison looks like there since clock speed can be so misleading between generations. Ditto the UHD 617 vs. Iris 6100, for that matter.

chx 8y ago
> since clock speed can be so misleading between generations I am sorry but no. They haven't been misleading for a long, long time. IPC grew from Sandy Bridge to Kaby Lake only by 20% https://www.hardocp.com/article/2017/01/13/kaby_lake_7700k_vs_sandy_bridge_2600k_ipc_review/4 https://www.hardocp.com/article/2017/01/13/kaby_lake_7700k_v... and since then nothing because Intel is barely doing more than tweaking the Turbo profiles because 10nm is not happening. All these years the progress was more in power consumption than anything else. Note how ThinkPads (and the world) moved from 35W dual core to 15W dual core chips. So if you compare them clock to clock you won't be far. But you don't know what clock of the chip actually will be because the problem with Y CPUs the problem always was: how good is the cooling, how long are they are able to maintain their top Turbo before throttling. Noone can say as there are no Amber Lake laptops yet and much less an Apple. What we can say with surety is even if it has exceptional great cooling it can only keep up with the 5557U in single core, in multi core performance it'll be half at best. The UHD 617 is not officially launched but https://gpu.userbenchmark.com/Compare/Intel-HD-615-Mobile-Kaby-Lake-vs-Intel-Iris-Pro-HD-6100-Mobile/m193629vsm25925 https://gpu.userbenchmark.com/Compare/Intel-HD-615-Mobile-Ka... the Iris Pro is a different class to the HD 615. I do not expect anything groundbreaking between the HD 615 and the 617. Check the difference between 610 and 615: https://gpu.userbenchmark.com/Compare/Intel--HD-610-Desktop-Kaby-Lake-vs-Intel-HD-615-Mobile-Kaby-Lake/m225196vsm193629 https://gpu.userbenchmark.com/Compare/Intel--HD-610-Desktop-...
- geoelectric 8y ago
  Awesome, thanks for this and the context around clock speed not being quite as misleading anymore modulo thermal throttling. My takeaway here is that my 2015 MBP13 will still blow away a new MBA then, so no reason to upgrade. Edit: the GPU comparison may be off, though. MBP13 used an Iris 6100, not an Iris Pro. Problem is I can't find official reference anywhere to an Iris Pro 6100, so have no idea what's reporting for this benchmark. What I do know is the Iris 6100 benched worse than the Iris Pro 5200, whereas this IP6100 in the link benches better.

chx 8y ago

> since clock speed can be so misleading between generations I am sorry but no. They haven't been misleading for a long, long time. IPC grew from Sandy Bridge to Kaby Lake only by 20% https://www.hardocp.com/article/2017/01/13/kaby_lake_7700k_vs_sandy_bridge_2600k_ipc_review/4 https://www.hardocp.com/article/2017/01/13/kaby_lake_7700k_v... and since then nothing because Intel is barely doing more than tweaking the Turbo profiles because 10nm is not happening. All these years the progress was more in power consumption than anything else. Note how ThinkPads (and the world) moved from 35W dual core to 15W dual core chips. So if you compare them clock to clock you won't be far. But you don't know what clock of the chip actually will be because the problem with Y CPUs the problem always was: how good is the cooling, how long are they are able to maintain their top Turbo before throttling. Noone can say as there are no Amber Lake laptops yet and much less an Apple. What we can say with surety is even if it has exceptional great cooling it can only keep up with the 5557U in single core, in multi core performance it'll be half at best. The UHD 617 is not officially launched but https://gpu.userbenchmark.com/Compare/Intel-HD-615-Mobile-Kaby-Lake-vs-Intel-Iris-Pro-HD-6100-Mobile/m193629vsm25925 https://gpu.userbenchmark.com/Compare/Intel-HD-615-Mobile-Ka... the Iris Pro is a different class to the HD 615. I do not expect anything groundbreaking between the HD 615 and the 617. Check the difference between 610 and 615: https://gpu.userbenchmark.com/Compare/Intel--HD-610-Desktop-Kaby-Lake-vs-Intel-HD-615-Mobile-Kaby-Lake/m225196vsm193629 https://gpu.userbenchmark.com/Compare/Intel--HD-610-Desktop-...

geoelectric 8y ago
Awesome, thanks for this and the context around clock speed not being quite as misleading anymore modulo thermal throttling. My takeaway here is that my 2015 MBP13 will still blow away a new MBA then, so no reason to upgrade. Edit: the GPU comparison may be off, though. MBP13 used an Iris 6100, not an Iris Pro. Problem is I can't find official reference anywhere to an Iris Pro 6100, so have no idea what's reporting for this benchmark. What I do know is the Iris 6100 benched worse than the Iris Pro 5200, whereas this IP6100 in the link benches better.