Quote from: Master_pc on June 11, 2023, 11:19:54+1 You are absolutely right The AMD Zen 3+ and Zen 4 chips support USB 4.0 and HDMI 2.1 I
Quote from: Master_pc on June 11, 2023, 11:19:54+1 You are absolutely right The AMD Zen 3+ and Zen 4 chips support USB 4.0 and HDMI 2.1 I
This is AMD's lie that most people believed. The first AMD chip with built-in USB4 (2 ports) is Zen4 Phoenix, which is clearly reflected in the specifications for the series and which is not in the Zen3+ datasheet.
Zen3+ does not have a built-in USB40, it can work with an external controller, which must be additionally soldered. If it is not there, no firmware update will help you.
On the series where the firmware update turned it on, the additional soldered controller was originally, for example, on the L5Pro/L7 2020 and Thinkbook G4 + 2022.
Intel, on the other hand, has TB4 built into the U/P series for several generations and since 2022 into the H series, it is not in the HX either, so the eGPU performance is much worse there, as well as on AMD when working with an external controller.
If everything was exactly as you believe, why would the IdeaPad 3 Gaming 2022 series lack a USB40 port when the Intel version does?
Moreover, Lenovo deceives buyers in the data on the Intel version, stating that the HDMI port is only 1.4b version - indicating the maximum supported mode at 4k@30Hz (although the Intel H series and discrete 3xxx chips from NVidia have native HDMI 2.1 ports - i.e. Lenovo intentionally vilely worsens the characteristics of the ports in relation to the hardware capabilities of the chips), but in reality there are 4k@60Hz, which has already been proven by tests. And why did they do so vilely misleading potential buyers of Intel and AMD series? And for a simple reason - AMD does not have a USB40 built-in port in Zen3+, buyers of this series lose the eGPU output, two DP1.4b ports (there is only one DP1.4b) and 40Gb/s output to 4k@144Hz monitors in 30-bit color, because DP1.4b does not support it (and in 24 bit color), and the input ports of such monitors (everyone on the market now) come with HDMI 2.1 cut in half by bandwidth (which is still not here, Lenovo disabled native 2.1 version in the BIOS, neither in the AMD version, nor in Intel, despite the fact that that both versions support it in hardware). And in order to somehow brighten up the lack of a USB40 port in the AMD version for buyers, they lied in psref on the Intel series that HDMI is 1.4b(only 4k@30Hz), not 2.0b, as in AMD. In reality, the Intel version has port setup to 2.0b version, at least, i.e. the Intel version is vastly superior in port capabilities to the AMD version. But fools buyers, ordinary inhabitants can buy AMD for HDMI with 4k@60Hz. At the same time, the price of the AMD version with 6800H+3050/8GB (DDR5 4800, but it is of little use due to the extremely slow Zen3+ memory controller)/512 is almost the same as the Intel version with 12650H+3050Ti /16(DDR4 - here Lenovo is just saved on the Intel version)/512.
The AMD version's only advantage is a more power efficient processor - according to Lenovo, the 6800H version lasts up to 7 hours longer when playing 1080p video with the same battery. Which of course affects the overall noise from the laptop in normal operation.
And who knows about this, except for me and a handful of experts on the planet? Well, now a little more ordinary people know ... =)