Wednesday, September 11th 2019
Intel Says Its Upcoming Gen12 GPUs Will Feature Biggest Architecture Change In A Decade
Intel is slowly realizing plans to "one up" its GPU game starting from first 10 nm Ice Lake CPUs that feature Gen11 graphics, equipping users of integrated GPUs with much more performance than they previously got. Fortunately, Intel doesn't plan to stop there. Thanks to the recent pull request found on GitLab Mesa repository, we can now expect to receive biggest GPU performance bump in over a decade with the arrival of Gen12 based GPUs, found on next generation Tiger Lake processors.
In this merge request, Francisco Jerez, member of Intel's open source Linux graphics team, stated the following: "Gen12 is planned to include one of the most in-depth reworks of the Intel EU ISA since the original i965. The encoding of almost every instruction field, hardware opcode and register type needs to be updated in this merge request. But probably the most invasive change is the removal of the register scoreboard logic from the hardware, which means that the EU will no longer guarantee data coherency between register reads and writes, and will require the compiler to synchronize dependent instructions anytime there is a potential data hazard..."
Planned for release sometime around 2020/2021 (with Tiger Lake), Gen12 graphics features a complete overhaul of Execution Unit in a way we haven't seen since i965 debut. There will be less hardware logic that checks data for coherency, possibly resulting in lower latency and higher performance. That workload will shift from logic built into hardware, to compilers for them to figure out if data is correct or not, resulting in less wasted GPU clock cycles dedicated to that function.
Source:
Phoronix via HotHardware
In this merge request, Francisco Jerez, member of Intel's open source Linux graphics team, stated the following: "Gen12 is planned to include one of the most in-depth reworks of the Intel EU ISA since the original i965. The encoding of almost every instruction field, hardware opcode and register type needs to be updated in this merge request. But probably the most invasive change is the removal of the register scoreboard logic from the hardware, which means that the EU will no longer guarantee data coherency between register reads and writes, and will require the compiler to synchronize dependent instructions anytime there is a potential data hazard..."
67 Comments on Intel Says Its Upcoming Gen12 GPUs Will Feature Biggest Architecture Change In A Decade
AMD better get the lead out on Zen2 with Navi APUs this year if they want to gain market share.
On the other hand AMD needs to come out with HBM memory for APU chiplets so they can finally be untied from system Ram speed.
More improtantly: why is this even brought up?
AMD APUs are aimed at entry level gaming. Intel's IGPs aren't.
It won't matter if competing AMD APU is twice as fast. It never had (and the gap used to be wider)
Intel been banging the jungle drums that they are going after gaming in every segment with Xe even in iGPU.
So yes it is highly relevant to bring this up since these 12 gen gpus will be Intel's first Xe push.
2019 Me: ???
2018 Intel: We will have discrete GPU's by 2020
2019 Me: Motherfucker you got 3 months till 2020
I don't believe what Intel says until it's released to reviewers like @W1zzard that will test this card and show the world how it really performance.
Where the product lacks in actual delivery, marketing team comes to fill the gap. Normal stuff.
Of course with this kind of performance Intel IGP will be able to play Diablo III or Minecraft or other old games. But it was already possible earlier - just at lower resolution.These IGPs will have to deliver 3x4K (high quality, 60Hz) or 2x6K or single 8K.