Platform Analysis

AMD provided the press with a block diagram of the Renoir APU at the time of the launch of the Zen 2 APUs. These APUs are monolithic dies, and true SoCs with all I/Os being sourced from the APU without a platform controller hub in the picture.

The above layout needs to be studied in conjunction with the design of the 4X4 BOX-4800U's motherboard. The various I/Os of the system (as well as internal components) are enabled using the following configuration.

An idea of the distribution of the various PCIe lanes can be obtained from the above diagram:

  • PCIe 3.0 x4 and a SATA port multiplexed behind the M.2 SSD slot (PCI Express x8 Bus #4)
  • PCIe 3.0 x1 for the Intel Wi-Fi 6 AX200 160 MHz WLAN card (PCI Express x1 Bus #3)
  • PCIe 3.0 x1 for the Realtek RTL8125 Gaming 2.5GbE Ethernet Controller (PCI Express x1 Bus #1)
  • PCIe 3.0 x1 for the Realtek RTL8168/RTL8111 GbE Ethernet Controller (PCI Express x1 Bus #2)

Other aspects of interest include the distribution of various USB ports - particularly in terms of bandwidth sharing. For example, we expect ports 'B' and 'C' behind the same root hub to share bandwidth. Note that the PCI Express x16 Bus #5 includes the two USB 3.1 controllers as well as the integrated GPU. The two Type-C ports in the front panel also act as conduits for two display outputs from the latter.

In the remainder of this review, we will first look at BAPCo's SYSmark 25, followed by various UL benchmarks and miscellaneous workloads. We also present some gaming benchmarks. A detailed look at the HTPC credentials of the system is followed by testing of the power consumption and thermal solution.

Introduction BAPCo SYSmark 25
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  • Stoinis MO - Thursday, December 3, 2020 - link

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    Reply
  • deil - Thursday, November 26, 2020 - link

    About ram it depends on how you work, I have 32GB and it daily goes above 24GB used, while browser/slack/spotify/30tabs on ff and few other things that I just never close take ~6GB. (I am on linux, it does use ram way more conservative that windows) When I last time used windows for work it did abuse all 32GB and started to slow down.
    its up to what you do and on 16GB it mostly work, but at least in my case 2-3 times a day I need a bit more, and like once a week 16GB is just not enough.
    as It costs just like 70$ once, and it saves me few minutes daily, I think it paid for itself in my health at least.
    Reply
  • damianrobertjones - Thursday, November 26, 2020 - link

    Plus there's also SUperfectch that caches various duties. A lot of people forget that. Reply
  • Spunjji - Friday, November 27, 2020 - link

    "...I've had more crashes in a month than in years of Intel/Nvidia systems. I've lost more time to lost work than when I was using Windows 98..."

    I'm calling bullshit on that. My understanding is that the APU driver situation isn't as good as discrete components (which I'm currently running without issue), but I can't believe that it's *worse than Windows 98*.
    Reply
  • philehidiot - Monday, November 30, 2020 - link

    Bullshit? Perhaps because you've just made assumptions about the set up? Read properly before accusing people of lying.

    Thanks.
    Reply
  • at_clucks - Thursday, December 3, 2020 - link

    I guess they were saying it's PEBKAC. Which it is. Having even 2 or 3 crashes in a month is already too much to be caused by AMD, their hardware, or their drivers, or else tens or hundreds of thousands of people would be affected and you'd hear about it. Not saying their drivers are perfect but if your PC is constantly crashing *you* have a problem. You probably don;t really know what's happening in there but you heard a rumor...

    I lost count of how many acquaintances had rootkit encrusted PCs, full of every garbage known to man after clicking on everything that fell under their mouse, everything running with hacks, cracks, and other torrented junk, from the OS image to the "security" software. They had no idea what's going on but all had some form of (ridiculous) theory based of stuff they heard from someone, or read on the internet but probably neither them nor their source understood it.

    Fix your stuff, stop blaming the tools. Also having at least a decent meal before drinking helps.
    Reply
  • Radhouse - Friday, November 27, 2020 - link

    Interesting experience. I've been using an ASUS PN50 R5 4500 system for 2 months as my entertainment computer without a single crash, and typically keep 25+ web pages open in Chrome. It is configured with 32 GB 3200 MHz Crucial memory and an 500 GB EV0 970 Plus SSD running Windows 10 Pro 20H2. (Initially installed V 2004) In addition to Chrome, I'm a heavy user of the following Apps; Netflix, Amazon, & Hulu.

    I'm not sure where the source of your problems, but I've been also running a PN50 R3 system as a workstation without any issues.
    Reply
  • Targon - Friday, November 27, 2020 - link

    No problem with AMD drivers for my X370 based motherboard, Ryzen 9 3900X CPU, or Vega64 reference model video card(yes, I need a 6800X or 6900X, just waiting on the 6900X to be released at this point). People who claim to have this or that problem may be encountering problems between components that in turn cause their issues with Radeon cards. Looking for what is in common between people who have a problem and then looking at those without problems to see what the differences are is something that most people don't seem to understand.

    QA process: Reproduce problem, identify source of problem, figure out workaround or fix for the problem.
    Reply
  • philehidiot - Monday, November 30, 2020 - link

    Your set up is very close to mine. 3900x, vega64, but I'm on the x570 mobo.

    What is very strange is these crashes are happening at low load (as is when working). No crashes during games or when I'm hammering it. It is unlikely to be a dodgy background application as it's a fairly new install and I routinely avoid installing bloat, etc. Only stuff required to make it go is enabled on start up to this end.

    I'm on the verge of shifting to Linux but for one major issue - I have a decent sound card which is not supported in Linux. I'm unwilling to unplug and ditch a few hundred quid worth of kit. Hopeful Linux drivers will emerge but creative aren't exactly helpful.
    Reply
  • damianrobertjones - Monday, November 30, 2020 - link

    Shift. Do it. Go to linux. You might then appreciate Windows a little more. Maybe. Both platforms have issues. Reply

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