It’s very different from iGPUs where the memory is set aside in bios and partitioned for GPU vs CPU use.
Unified memory allows the CPU and GPU to share address space and allows you to dynamically adjust memory usage across both components - and not in an artificial way that’s been done before where some “extra” RAM is set aside to behave as a swap for the iGPU memory if you go above the limit.
The way iGPU’s did this is really inefficient and suboptimal. The way Apple and now AMD are doing it here makes way more sense. It gives CPUs access to memory bandwidth far beyond what they can usually get. It gives GPU’s access to latency far lower than traditionally available, and unlocks truly heterogenous compute, massively speeding up CPU/GPU shared workloads at a fraction of the power draw, because you’re eliminating the time, latency, and energy cost of shuffling things around a PCIE bus or copying it between two memory pools over 2 anemic channels like iGPUs.
At boot, Llano partitions the physical memory into two regions – up to 512MB graphics memory and the rest is system memory (for the CPU). The CPU and GPU have separate virtual memory systems: the CPU uses demand based paging, while the GPU paging is software scheduled (by the driver or OS). However, the OS can pin memory translations in both domains to simplify passing data.
Apple M architecture is an ARM license, and like most modern ARM SoC's, has...unified memory.
So are you implying it was the first "desktop" CPU to have unified memory? Not only is that still untrue, this article is about data center CPU's. Many data center CPU's, ARM or otherwise, have been UMA. The most common of which would be Amazon's Annapurna SoC's dating back to 2015.
Listen, we should all give Apple credit where credit is due, and the M architecture is impressive. But keep the topic on topic.
M1 was years late...after copying it from AMD when they did it for PS4 and Xbox One consoles...AMD was also to take a gamble on HBM btw...so they lead and have led the charge on quite a few innovations...wait for a few years and then Crapple will use 3D V-cache too
The Voyager consoles tend to explode when the ship is hit by a sufficient amount of enemy weapons. I'm just guessing it is the chips that are exploding. It could be that the Klingon's have placed bombs beneath the consoles so as to ensure an honorable death of the crew as they engage the enemy as opposed to be beaten and then being captured; which is dishonorable.
It's really just replacing motherboard PCB space with silicon substrate. Much smaller wires, less signal travel distance, but everything has to be in flat chiplets.
Phoenix is still at 12 CUs. Intel has to play catch-up to whatever Strix is going to be, and doesn't even put its best iGPUs on desktop. Things are not trending towards mega APUs in the PC market, if that's what you mean by legitimacy.
If there's anything that shows the legitimacy of APUs, it's the current generation of consoles. Hacking the Xbox Series X or PS5 into a general purpose x86 PC would instantly legitimize PC APUs.
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spaceship9876 - Thursday, January 5, 2023 - link
but can it run crysis?rodjames84 - Thursday, January 5, 2023 - link
The ultimate question whose governs the universe lolKhanan - Thursday, January 5, 2023 - link
You should rather ask how many instances of crysis can run on this lollemurbutton - Thursday, January 5, 2023 - link
Unified memory. So hot right now.M1 was years ahead.
dwillmore - Thursday, January 5, 2023 - link
LOL. The NIH is strong with this one.ET - Thursday, January 5, 2023 - link
Years ahead of what? Every iGPU that came before it?]dwillmore - Thursday, January 5, 2023 - link
Time operates differently inside the RDF.dwbogardus - Thursday, January 5, 2023 - link
RDF means Reality Distortion Field?StevoLincolnite - Wednesday, February 22, 2023 - link
Nah. Means... "Really Desirable Flamingo's."WinterCharm - Monday, January 9, 2023 - link
It’s very different from iGPUs where the memory is set aside in bios and partitioned for GPU vs CPU use.Unified memory allows the CPU and GPU to share address space and allows you to dynamically adjust memory usage across both components - and not in an artificial way that’s been done before where some “extra” RAM is set aside to behave as a swap for the iGPU memory if you go above the limit.
The way iGPU’s did this is really inefficient and suboptimal. The way Apple and now AMD are doing it here makes way more sense. It gives CPUs access to memory bandwidth far beyond what they can usually get. It gives GPU’s access to latency far lower than traditionally available, and unlocks truly heterogenous compute, massively speeding up CPU/GPU shared workloads at a fraction of the power draw, because you’re eliminating the time, latency, and energy cost of shuffling things around a PCIE bus or copying it between two memory pools over 2 anemic channels like iGPUs.
StevoLincolnite - Thursday, January 12, 2023 - link
You mean like Sideport memory on AMD's old 880G chipsets?meacupla - Thursday, January 5, 2023 - link
Pretty sure PS5 had unified memory first.cbm80 - Thursday, January 5, 2023 - link
The Apple II had unified memory. :-)Cooe - Thursday, January 5, 2023 - link
... Years ahead of AMD's Llano from literally 2011? 😑🤦♂️ Apple fanboys are really something else.del42sa - Friday, January 6, 2023 - link
llano had unified memory ? IIRC it was Kaveri APU with HSAKhanan - Friday, January 6, 2023 - link
Yepbrucethemoose - Friday, January 13, 2023 - link
Uh, speaking as a llano owner... it does not.Renoir doesn't either. Its still got a seperate static pool.
Maybe Kaveri does? I would be kinda surprised though.
del42sa - Saturday, January 7, 2023 - link
At boot, Llano partitions the physical memory into two regions – up to 512MB graphics memory and the rest is system memory (for the CPU). The CPU and GPU have separate virtual memory systems: the CPU uses demand based paging, while the GPU paging is software scheduled (by the driver or OS). However, the OS can pin memory translations in both domains to simplify passing data.https://www.realworldtech.com/fusion-llano/2/
Samus - Saturday, January 7, 2023 - link
Apple M architecture is an ARM license, and like most modern ARM SoC's, has...unified memory.So are you implying it was the first "desktop" CPU to have unified memory? Not only is that still untrue, this article is about data center CPU's. Many data center CPU's, ARM or otherwise, have been UMA. The most common of which would be Amazon's Annapurna SoC's dating back to 2015.
Listen, we should all give Apple credit where credit is due, and the M architecture is impressive. But keep the topic on topic.
Dante Verizon - Sunday, January 8, 2023 - link
If that can't beat an instinct+Epyc it's not impressive at all. There's nothing revolutionary about Apple's design, it's just a huge chip. Meh.leoneo.x64 - Monday, March 6, 2023 - link
M1 was years late...after copying it from AMD when they did it for PS4 and Xbox One consoles...AMD was also to take a gamble on HBM btw...so they lead and have led the charge on quite a few innovations...wait for a few years and then Crapple will use 3D V-cache tooThreska - Thursday, January 5, 2023 - link
They do some good work on the instinct.https://youtu.be/4r_SwjYogQE
Silver5urfer - Thursday, January 5, 2023 - link
Guess this is the future of the Silicon processors. Not much surprised but definitely seeing this take over slowly.Interesting, will wait and see how it unfolds when AT gets to write about it. Also unfortunate that Anandtech doesn't get any GPUs to review.
Khanan - Thursday, January 5, 2023 - link
Yes it kinda reminds me of the central processor of the Voyager. Yep…ballsystemlord - Thursday, January 5, 2023 - link
Does in blow up like Star Trek Voyager's chips in their consoles do? ;)Khanan - Friday, January 6, 2023 - link
I don’t remember that partballsystemlord - Sunday, January 8, 2023 - link
The Voyager consoles tend to explode when the ship is hit by a sufficient amount of enemy weapons. I'm just guessing it is the chips that are exploding.It could be that the Klingon's have placed bombs beneath the consoles so as to ensure an honorable death of the crew as they engage the enemy as opposed to be beaten and then being captured; which is dishonorable.
Threska - Sunday, January 8, 2023 - link
The Star Trek universe subscribes to the lowest bidder philosophy.GreenReaper - Wednesday, March 22, 2023 - link
They don't "do" money, which is probably part of the problem.Wrs - Friday, January 6, 2023 - link
It's really just replacing motherboard PCB space with silicon substrate. Much smaller wires, less signal travel distance, but everything has to be in flat chiplets.Khanan - Thursday, January 5, 2023 - link
This is the same company that was nearly bankrupt a few years ago, how the turntables have danced.ballsystemlord - Thursday, January 5, 2023 - link
@Ryan Even if you cannot review this one, please post in the comment section if you find someone else who has done a review.PS: Of course I know this is not for gaming.
Bodennew - Saturday, January 7, 2023 - link
Wow perhaps this will give legitimacy to APUs in the PC marketnandnandnand - Saturday, January 7, 2023 - link
Phoenix is still at 12 CUs. Intel has to play catch-up to whatever Strix is going to be, and doesn't even put its best iGPUs on desktop. Things are not trending towards mega APUs in the PC market, if that's what you mean by legitimacy.If there's anything that shows the legitimacy of APUs, it's the current generation of consoles. Hacking the Xbox Series X or PS5 into a general purpose x86 PC would instantly legitimize PC APUs.
quaz0r - Saturday, January 7, 2023 - link
Baking it all onto the same slice of silicon is the future for surenandnandnand - Saturday, January 7, 2023 - link
And in a 3D structure as tall as they can make it.Threska - Sunday, January 8, 2023 - link
It's more about surrounding the gate.https://youtu.be/i3dDslo9ibw
sindhur - Monday, January 30, 2023 - link
An established worldwide standard for occupational health and safety management systems is OHSAS 18001.May assist your business in identifying and managing its health and safety hazards by putting into effect its best-practice procedures.OHSAS 18001 Certification in indonesia Organisations all over the world understand the need to manage and enhance the performance of health and safety, and they accomplish this via occupational health and safety management systems.Prior to 1999,there were many national standards and independent certification programmes to choose from.The market became fragmented and muddled as a result, which damaged the legitimacy of particular programmes.In order to fill this gap, a worldwide partnership known as the Occupational Health and Safety assessment series project group was established.Representatives of academic institutions, organisations that provide certification,organisations that provide occupational safety and health services,and secretarial institutions made up the Group.The OHSAS Project group released the OHSAS Series in 1999,drawing on the best existing standards and frameworks.There were two specifications in the Series 18001 and 18002,which each established standards for an OHS management system.