AMD’s newest monetary analyst presentation passed off at this time, and in it we received some juicy details about the corporate’s upcoming Ryzen 7000 Zen 4 CPUs and RDNA 3 GPUs. I’ll go over the GPU bulletins in one other publish, and concentrate on Zen 4 CPUs and AMD’s roadmap on this one. AMD disclosed its efficiency expectations for Zen 4 and bullishly laid out its plans for the following a number of years.
AMD, for apparent causes, is not revealing all of its secrets and techniques but. That must anticipate the precise launch, however we now know that Zen 4 CPUs might be constructed on TSMCs 5nm course of, will characteristic an IPC and frequency enhancements, and can ship as much as a 125% enchancment in reminiscence bandwidth per core. They are going to require a brand new socket, and motherboards with new chipsets (opens in new tab) that characteristic PCIe 5.0 and DDR5 reminiscence help. They may even embody AI directions and AVX-512 help.
AMD fleshed out the considerably obscure, although thrilling performance claims it made at Computex (opens in new tab). We now know that AMD expects an 8-10% directions per clock (IPC) enhance over Zen 3. The identical slide says we are able to anticipate larger than 15% single thread efficiency acquire. The latter declare is fascinating because it contains anticipated important clock velocity will increase together with benefits of transferring to DDR5 reminiscence. It is potential that AMD is retaining its playing cards near its chest as a 15% enhance doesn’t sound all that spectacular when every part is taken into account. It’s essential to notice that >15% is a “larger than” worth, so there’s room for surprises but. We’ll have to attend and see how the chips carry out in the actual world.
AMD likes to tout its efficiency per watt management, and so it ought to. The corporate expects its 16C/32T mannequin, more likely to be named the Ryzen 9 7950X to ship a larger than 25% performance-per-watt enchancment over the Ryzen 9 5950X (opens in new tab). Zen 4’s multithreading efficiency seems set to take a giant leap, with AMD claiming a 35% efficiency uplift, a lot increased than the 15% it expects from a single thread.
The roadmap is fascinating, although there aren’t any actual surprises. The important thing factor to notice is that there might be V-cache enabled 7000 sequence fashions sooner or later. If it/they’re something just like the 5800X3D (opens in new tab), then we are able to anticipate to see an honest uptick in gaming efficiency. These fashions are more likely to go up towards Intel’s 14th Gen Meteor Lake CPUs in 2023. That might be an fascinating battle.
Zen 4C contains density optimized cores, designed for enterprise and cloud functions. Given AMD’s chiplet structure, these might embody increased core counts on the expense of smaller cache, or decrease frequency and single threaded efficiency. We are able to anticipate EPYC ‘Bergamo’ CPUs with 128 cores and 256 threads in 2023.
AMD will launch Zen 4 primarily based Threadripper fashions. I’d anticipate Threadripper to stay a Professional sequence, kind of unique to OEMs, however AMD may have a chance to market the decrease core rely Threadripper fashions to ultra-enthusiasts who don’t essentially want excessive core counts, however as a substitute want a system with quite a lot of PCIe lanes for enlargement playing cards. Streamers or customers with giant drive arrays come to thoughts.
Particulars about Zen 5 are clearly not very fleshed out this far out from their launch. Zen 5 is purportedly an all new structure, although that’s in all probability an overstatement. Zen 5 follows the identical product segmentation of Zen 4 fashions, with common fashions, V-Cache fashions and Zen 5C fashions. We are able to anticipate even bigger IPC and efficiency per watt enhancements and up to date instruction units aimed toward accelerating AI and machine studying workflows. They’re mentioned to be constructed on a mixture of 4nm and 3nm processes.
AMD didn’t reveal a launch timeframe for Zen 5, however given its roughly two 12 months launch cadence, a Zen 5 launch within the second half of 2024 would appear like a secure wager. Zen 4 with V-cache will fill the hole in 2023.