Enlarge /. Ryzen 4000 desktop CPUs are there – but they don't look like the breakthrough that many readers were hoping for.
This morning, AMD announced the next big thing for its Ryzen desktop CPU line – the Ryzen 4000 series, which is expected to appear in the third quarter of 2020.
Those of you who have been waiting breathlessly for the Zen 3 architecture must keep waiting – Ryzen 4000 desktop CPUs are still based on the 7 nm Zen 2 architecture. There also doesn't seem to be any performance record breakers in the Ryzen 4000 desktop product line: The most popular SKU is the 65W 8 Core / 16 Thread Thread Ryzen 7 Pro 4750G.
Instead, AMD is aiming for a solid goal to compete with Intel's chokehold in the office PC market. Each of the 18 new processor SKUs announced has integrated Radeon graphics – and nine of the 18 are "GE" suffix CPUs, which means only 35 W TDP. Both functions are extremely desirable in both home office and business environments. Integrated Radeon graphics are suitable for anything other than creating or playing high-end content. Lower TDP values mean lower electricity and cooling costs and in hotter climates.
Desktop Ryzen 4000 architecture and performance
We're keeping a close eye on AMD because we claim "2.5 times" gen-on-gene performance … by comparing Ryzen 7 4700G with Ryzen 5 3450G.
Comparing Ryzen 7 4700G with Ryzen 5 3400G to get "+ 152%" performance is pretty dodgy.
The general slide "leadership performance" also seems sketchy to us. Why are we basing the performance for all segments on a Core i3-9100?
The new Ryzen 4000 G-series APUs will continue to use the AM4 socket and, like the previous Ryzen 3000 CPUs, are based on a 7 nm Zen2 architecture. Essentially, these are Ryzen Mobile 4000 APUs that are capitalized and scaled up in desktop class frequency, power, and heat budgets.
In at least one respect, the new series is a step backwards compared to Ryzen 3000: The 4000 G series only offers PCI Express 3.0, not 4.0. Each chip offers eight PCIe 3.0 lanes for expansion cards – we don't know yet whether there will be additional PCIe lanes for NVMe devices. This is probably not a problem for customers of the Ryzen 4000 G series. These CPUs are all designed for use with integrated graphics, and none of them outperform the high-end desktop CPUs of the Ryzen 3000 at all.
When it comes to estimating what the performance of the 4000 G-Series will look like, AMD has offered us much less concrete data than we are used to. The company wasn't shy to tell us that the G-Series is faster than competing Intel vPro CPUs and by how much – but AMD is remarkably caged in comparison to previous Ryzen CPUs. Films claim "more than 2.5 times more power than the last generation" – however, these numbers are obtained by comparing Ryzen 7 4700G with Ryzen 5 3450G and not with Ryzen 7 3700X.
If we want to get a realistic comparison with Ryzen 3000 desktop CPUs, we have to do a little bit of donkey work and hope that the numbers match. AMD's slide claims "+ 152%" Cinebench R20 multithreaded results when comparing Ryzen 7 4700G to Ryzen 5 3450G – this is not very useful in itself, but it gives us something to do.
CGIdirector shows that Ryzen 5 3450G achieves an R20 multithreaded score of 1,995. If we add 152 percent, we get a score of 5,027. This estimated raw value shows a significant improvement of 3.5 percent compared to Ryzen 7 3700X – and dead heat with Ryzen 7 3800X.
Running the numbers this way may be a bit sloppy – but the question "Why does AMD compare Ryzen 7 4000 to Ryzen 5 3000?"
Ryzen 4000 APU models
Enlarge /. AMD Memory Guard – full RAM encryption – is the main selling point for the Pro version of the Ryzen 4000 G-series processors.
18 different SKUs have been announced today – but there are really only five new base models. Four of them have both G and GE (energy efficient) models, and all have both pro and non-pro models. The difference is that Pro models explicitly support AMD Memory Guard and AMD Secure Processor technologies and non-Pro models do not.
|Basic model||Cores / threads||TDP (G-model)||TDP (GE model)||Boost / base frequency (G model)||Boost / Base Frequency (GE model)||L2 + L3 cache|
|Ryzen 7 4700/4700 Pro||8C / 16T||65W||35W||Up to 4.4 GHz / 3.6 GHz||Up to 4.3 GHz / 3.1 GHz||12MiB|
|Ryzen 5 4600/4600 Pro||6C / 12T||65W||35W||Up to 4.2 GHz / 3.7 GHz||Up to 4.2 GHz / 3.3 GHz||11MiB|
|Ryzen 3 4300/4300 Pro||4C / 8T||65W||35W||Up to 4.0 GHz / 3.8 GHz||Up to 4.0 GHz / 3.5 GHz||6MiB|
|Athlon Gold 3150/3150 Pro||4C / 4T||65W||35W||3.9 GHz||3.8 GHz||6MiB|
|Athlon Silver 3050/3050 Pro||2C / 4T||n / A||35W||n / A||3.4 GHz||5MiB|
If you dream of building your own inexpensive but fantastic Ryzen 4000 system with integrated Radeon graphics, we have bad news for you – this entire processor series is available to OEMs and system integrators (see: OEMs, but slightly smaller than Lenovo or HP). The Pro versions of these Ryzen 4000 desktop APUs are available today for OEMs and SIs, and systems with Pro and non-Pro Ryzen 4000 APUs are expected to be available from larger OEMs in the fall.