No, the AMD Ryzen 4000 desktop APU does not use PCIe Gen 3.
No, the AMD Ryzen 4000 desktop APU does not use PCIe Gen 3.
I reviewed the specifications on the AMD official site and noticed all Ryzen 4000G models support PCIe Gen 3. I was surprised because I expected PCIe Gen4, which would be great since the Ryzen 3000 CPU already uses it. Here are some relevant product pages:
- https://www.amd.com/en/products/apu/amd-ryzen-7-4700g
- https://www.amd.com/en/products/apu/amd-ryzen-7-4700ge
- https://www.amd.com/en/products/apu/amd-ryzen-5-4600g
- https://www.amd.com/en/products/apu/amd-ryzen-3-4300g
- https://www.amd.com/en/products/apu/amd-...-pro-4350g
- https://www.amd.com/en/products/apu/amd-...-pro-4750g
- https://www.amd.com/en/products/apu/amd-...pro-4350ge
It’s worth mentioning there are no Ryzen 5 Pro models for the 4000G APU. It would have been nice to see more PCIe Gen4 x1 cards, allowing better Ethernet controller support. Thanks for the update, Chiyawa!
They appear to be designed specifically for OEM/SI customers rather than regular buyers. It doesn't really matter whether they support PCI-e 3.0 or 4.0 since most people aren't purchasing Dell or HP systems with such high-bandwidth cards. These are reinforced laptop processors intended for budget PCs or all-in-one models, utilizing the APU instead of a separate GPU. They might fit in certain laptops as well.
I understand your concern. I was expecting a 10GbE network setup for my tasks. Considering the APU’s PCIe Gen 3 limitation, it would require at least two lanes to reach 10Gbit speed (a single lane maxes out around 7.877Gbits/s). That’s a bit of a setback. Moving forward, I’ll focus on the Ryzen 3000 CPU instead.
I recall the desktop Ryzen 3 4350G APU offers four cores and eight threads, while the Ryzen 3 4300U provides four cores and four threads.
Even the 4000 series APUs run Zen 2 with an integrated GPU. Nothing new in this regard.
Sure thing! The updates include new features, various clocks, and improved stepping mechanisms. It works whether it's a mobile or not. The main promotion will likely be the IPC boost and enhanced efficiency. I don't think there'll be much room for manual overclocking either—probably around 200mhz.
APUs are currently a generation or revision behind. The 2000-series APUs used the first-generation (Ryzen 1000-series) design. The 3000-series APUs followed with Zen+ (Ryzen 2000-series). It logically makes sense that the 4000-series APUs would be built on Zen2 (Ryzen 3000-series), without PCI-E 4.0 support.
Check if CPU stacks match between desktops and laptops. I found a desktop 3600 and a mobile 4000 with screenshots for comparison.
I understand the point, though it seems to mix things up. There was indeed a Zen+ architecture, but it's still part of Zen 2. The upcoming desktop 4000 series will move to Zen 3 with better IPC, clock speed, and cores. These chips should be powerful. Regarding overclocking (OC), it appears we've reached its peak for CPUs—most are already very efficient on their own. You often need to invest a lot of time just to get small improvements, and performance usually improves naturally without forced tweaks. This trend is also evident in Intel's direction now.