Go Back   OC3D Forums > [OC3D] General Forums > OC3D News
Reply
 
Thread Tools Display Modes
 
  #1  
Old 20-06-19, 10:32 AM
WYP's Avatar
WYP WYP is offline
News Guru
 
Join Date: Dec 2010
Location: Northern Ireland
Posts: 15,671
Intel "Ice Lake" CPU reportedly offers 40% IPC uplift in benchmark

This data is extremely suspicious.



Read more about Intel's reported 40% IPC uplift with Ice Lake.

__________________
_______________________________
Twitter - @WYP_PC
Reply With Quote
  #2  
Old 20-06-19, 10:40 AM
Giggyolly Giggyolly is offline
Member
 
Join Date: Dec 2017
Posts: 132
18% IPC is all well and good, but we won't see any flagship desktop parts unless they can get their clocks up. Which seems unlikely
Reply With Quote
  #3  
Old 20-06-19, 10:49 AM
tgrech tgrech is offline
OC3D Elite
 
Join Date: Jun 2013
Location: UK
Posts: 1,344
Yeah early insider reports(From impeccably reliable sources on this topic) are that ~4.1Ghz is the fundamental architectural limit to clock speeds, this happens when you take things so wide that attempting to use higher clock speeds results in too little time between clock pulses for the combinational logic blocks to be ready in time(Have their results in the registers) for the next pulse. (It's worth noting that going wider is almost always more efficient though)

You can get around this problem with node changes specifically if those changes reduce the latency induced by logic gates(On the single digit nanoseconds scale) but they won't be able to get around this issue just from more mature silicon on the same node type. Otherwise you need to modify the arch with more aggressive pipelining(But go too aggressive and you harm efficiency & IPC).

It seems likely Intel will skip Sunny Cove for desktop entirely until Saphire Rapids(Or whatever they end up calling the successive arch) is ready(~2021), it'd probably just get shown up by 14nm comet lake. Sunny Cove is good for laptops or servers(Like 80% of their income tbf), but at best a side step for performance desktop, as the IPC gains will be negated by the clock speed hit.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump










All times are GMT. The time now is 01:30 AM.
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.