Lenovo ThinkPad P51 Review / Test

he ThinkPad P51 is Lenovo’s top workstation model with 15 inch. You get the strongest mobile Intel Kaby-Lake-CPUs (up to Intel Xeon CPUs) and an Nvidia Quadro up to an M2200 in a military tested case.

While it’s quite difficult to get in northern america, it has been available in Europe since the end of April 2017. I got mine some weeks ago and had a lot of time to play around and test the machine inside out. This review is mostly focused on Windows 10, a review with (Arch) Linux is going to follow in the next weeks. As a general hint, this machine runs great with Linux and a recent Kernel version (>= 4.10).

This review is still work in progress. Going to add new observations, benchmark results, images from time to time, as this is my main working machine now. If you have any questions, just drop me a comment.

// Update Fri, May 26 2017: Added a gallery with multiple images to the review (scroll to down to the end)

The model (20HH0018GE) i got has the following hardware:

Lenovo ThinkPad p51 Specs

  • Processor: Intel Core i7 7820HQ @ 2.90GHz
  • Memory: 32 GB Crucial  CL14 DDR4-2400 (self replaced, 2x16GB Dual-channel)
  • Graphics: Intel HD Graphics 630 & Nvidia Quadro M2200
  • Display: 15 inch FULL-HD Display
  • Storage: 1 TB Samsung 960 m.2 NVME SSD + 1 TB Samsung 850 Evo S-ATA (self replaced)
  • Bios: 1.0.5 (2/13/2017)
  • WWAN / LTE Modem: Sierra EM7455 (self replaced)
  • Weight: 2.5 kg (5.5 pound)
  • Power supply: 170 W
  • Price: 2590 Euro (without self replaced parts)



Lenovo ThinkPad P51 GeekBench 3 ResultsSubjective performance is great, even with multiple programs open and two external monitors (UHD + WQHD) attached the system feels snappy and responsive. I owned the P70 for some months (with an Quadro M3000 card) and the P51 feels even more polished.

CPU Benchmark results

Cinebench R15 Multi: 746 – 770
Cinebench R15 Single: 150-165
Geekbench 3 (32-bit) Single: 3726
Geekbench 3 (64-bit) Multi: 14147



During normal usage, the low energy Intel HD 630 is active and the Nvidia card is deactivated. For non-graphical day-to-day tasks it performs well, without any noticeably UI lag or performance issues. With UHD this could be a bit different. On my Lenovo P70 (Intel HD 530) with Ultra-HD display i noticed quite some lag (in browser etc.), for everyone preferring a totally smooth experience the Full-HD variant is the better choice.

The Nvidia Quadro M2200 is still based on the 28 nm Maxwell architecture, based on the same chip as the GTX 965M. The performance is roughly on pair with the old Quardro M3000M or an current GTX 1050. It’s drivers are optimized for stability and professional software and not on gaming. If this justifies the huge surcharge you have to decide yourself. In Cinebench R15 the card is achieving around 106-110 fps.

Once you connect external displays, the Nvidia card is used (All external ports are powered by it), which is reducing the battery time a bit.

GPU Benchmark results

LuxMark v2.0 (GPUs only, Room scene) -> Samples per second: 1281
LuxMark v2.0 (GPUs only, Sala scene) -> Samples per second: 2058

HWMonitor aafter running Cinebench R15 multiple times

HWMonitor aafter running Cinebench R15 multiple times

Temperatures & Emissions

During day-to-day use the CPU temperature idles around 40-50 degrees Celsius with quiet fans. Occasionally the fans jump in for less than a second with some sort of pumping sound, which can be quite irritating the first times.

Once the processor hits 60-70 degrees Celsius the fans jump in on a mid level. When you run a resource intensive tasks for longer than some minutes, they jump in into the highest mode and keep the processor below 80° degrees Celsius. The CPU remains at a constant clock speed of 3.5 – 3.6 GHz during that.

The GPU stays even cooler, even with high utilization and Benchmarking it rarely hits more than 60-70 degrees Celsius. Most times it stays even way below that.

The m2 and SATA SSDs are quite shielded from the base unit temperature. In idle and during day-to-day use they remain cool at around 30-40° degrees Celsius.


Samsung / Lenovo P51 256 GB NVME SSDThe basic unit comes with an 256 GB m.2 NVME SSD from Samsung (MZ-VLW2560). The Lenovo P51 can take up to 3 hard-drives (2 m.2 SSDs + SATA SSD). For adding another m.2 drive you need the an extra Lenovo m.2 ssd tray accessory. The same goes for adding a SATA SSD, where you need a Lenovo storage kit also for around 20 Euro.


Samsung 960 Evo 1TB SSD CrystalDiskInfo Benchmark


Lenovo offers the ThinkPad P51 with different display options (Full-HD (250 nits), Full-HD Touch (230 nits), 4k Screen (300 nits)). Lenovo is sadly using multiple suppliers for displays, so you can’t really compare one model against another. The specs on their homepage can be seen as minimal values all the different displays fulfill.

I got the Full-HD model mostly because of scaling issues and energy savings. At work i am using the Lenovo Pro Dock and only external monitors (more on the dock later), so the display is mostly important when i am traveling. Personally, i don’t really see that much of a difference on a 15 inch between Full-Hd and Ultra-HD / 4k, so i prefer going with a far longer lasting battery.

With the display in my P51, it looks like i won the display lottery. It has great colors, great black level and you can use it outside without any issues. It performs way better than i expected, going to add some display metrics in the next weeks. The Lenovo P51 comes also with an integrated color calibrator from Pantone, which i personally feel is more a gimmick than a real calibration.

Keyboard & Touchpad

The keyboard is Lenovo characteristic a great one. In comparison to most other Notebook keyboards it’s really a joy to type on it. As it has a num-pad, the keyboard is off-center to the screen, some people really complain about that. Personally for me this has never been an issue, i was already used to it from my earlier P70, so it just took some minutes and it felt totally normal.

The Synaptics Touchpad is decent, it got a better and more fluid surface than the one in the Lenovo ThinkPad P70. Of course it can not keep up with a MacBook touchpad, but for some generic use during travel on plane or train it’s doing fine. There are in total 6 different buttons, 3 on the top and 3 below the Touchpad.  Personally i prefer using the TrackPoint, which is performing Lenovo typically, really well.


The Lenovo P51 comes with an switchable 6 cell battery with 90 Wh. During day-to-day use i reach around 7-10 hours (non GPU intensive tasks without the Nvidia card jumping in). When you would only use it for browsing you could reach times way over 10 hours.


The Lenovo ThinkPad P51 is equipped with a Fingerprint Reader, which is supported by Windows Hello. For the Login you just have to touch it once, like you are used from modern devices. On Linux i was not able to get it working. The ThinkPad comes with various more or less proprietary security features, like TPM 2.0, Anti-Theft (CompuTrace) etc. It also has a Kensington lock slot on the right.


The Lenovo Thinkpad P51 has a decent port selection. On the left you only find the ExpressCard connector, the SD-Card reader and the Smart-Card slot. On the right you find the Mini DP 1.2, the headphone jack, 2 normal USB 3.0 ports and the Kensington lock slot. On the back, you find two extra USB 3 ports, one with always power functionality and the. Additionally you find the Intel Ethernet, an Thunderbolt 3 / USB-C port and an HDMI port there. The Sim-Card slot is found near the battery. On  the bottom there is an additional Lenovo docking port connector.

The P51 comes with an Intel Wireless-AC 8265 and an Intel I219-LM ethernet adapter. The ThinkPad P51 is WWAN ready, in my model i added Sierra EM7455 card  (Qualcomm Snapdragon X7 LTE-A modem), which is working well. The needed cables are already prepared in the slot below the keyboard and you just have to attach them.


The previous year Lenovo ThinkPad P50 got some bad reviews for maintenance (in comparison to the ThinkPad P70). Personally i had no issues with the P51 (same case as the P50) with exchanging certain parts, actually it wasn’t that much a difference to the P70. The bottom cover is hold by multiple screws (which stay in). The first time you remove it you need to use some pressure, because the plastic clips are quite solid. After that you can get access to the two ram slots and the 2x m.2 SSD Slots and the SATA one. To add a new SATA hdd or another m.2 one you need the matching storage kits from Lenovo, see also storage.

To access the other RAM slots or the WWAN / WIFI slots, you have to remove the keyboard, which is done by removing 3 screws in the back and then moving the keyboard to up.

Docking Station

Most of the day my ThinkPad P51 is running in docking mode with the Lenovo ThinkPad Workstation Pro Dock (270 Euro). It offers 6x USB 3.0 ports, Gigabit Ethernet, 2x DisplayPort 1.2, 1 DVI-D, 1x HDMI 1.4 and one VGA. It also comes with a security lock with 2 keys, which is quite handy and way faster than attaching a Kensington Lock on the device itself (you attach that on the dock). The dock brings a huge and heavy 230 W power adapter itself. So you can keep the 170 W one for traveling or every day use.

Docking is working flawless on Windows 10, there are some issues in Linux (you have to restart the display server or boot up with it). Attached to the dock (both DisplayPort) i run one Ultra-HD Dell 43 inch display and a Dell Full-HD display. Both run in full resolution with 60 Hz this way. If you want to go with two Ultra-HD displays you need to attach one to the notebook itself. Beware that the manual on which combinations are working is quite confusing.


Buying a workstation computer is also in 2017 not easy. In the last years i used multiple different high-end machines (Like the Lenovo P70, Dell XPS 9550, Dell Precision 5510, MacBook Pro 15′ 2015 + 2016 etc.) and all have their ups and downsides. With the ThinkPad P51, Lenovo got a lot of things right. For an 15 inch machine it’s heavy (0.8 kg / 1.6 lb more than the MacBook 2016) and on the edge, what i personally would accept for daily transport today. But compared to other devices (even though you can argue they are no workstations), like the MacBook Pro 2016 or the HP ZBook Studio, the P51 takes far less compromises.


  • Great performance
  • Quiet on day-to-day usage
  • Robust case
  • Great Full-HD display (on this model)
  • Great battery runtime
  • Three-year next day warranty


  • Quiet heavy
  • Mediocre Touchpad
  • Display lottery (you can’t predict what you get)


  1. You mentioned having used a Dell 9550. That’s really a different type of laptop but both address the high end of the market for people who need >= 32GB RAM and 1TB SSDs in a 15″ laptop and ummm better keyboards than a current generation MacBook Pro. I’m wondering if you can provide any insight on the comparison.

    1. The Dell XPS is a great machine don’t get me wrong. But it was never able to replace my main workstation desktop. It’s actually not so easy to explain why. It had enough raw power (but was sometimes noisy and went awful hot), that was not the issue, but starting with looking for a docking solution things went awful complicated..

      The ThinkPad P51 is finally the all-in-one solution i looked for. I am traveling a lot and i was tired syncing (even with using NextCloud) files, settings etc between two machines.

      And I tried multiple devices, including the Dell XPS, the P70 (too heavy and bulky), MacBook Pro’s (including the 2016 one, i am hitting the 16 Gigs memory easily) and they just never felt reliable enough to be my only machine.. I actually also had the Workstation dock for the P70 and since then it improved a lot.. Also Linux support (my main OS) got way better. Switching between Nvidia (in docked) and intel mode is far more reliable than last year. Currently using a Ultra-HD Dell 43′ and a 24′ Full-HD monitor on the dock and it just works.. No additional cables on it.. The ThinkPad P51 is ready in seconds (okay one display manager restart for switching between Intel and Nvidia if you want to save energy).

      1. Other than weight is there any reason you prefer the p51 over the p70? How much more does the p70 weight than the p51? Thanks

        1. Hey Matt,
          no it’s mostly about weight. Had the ThinkPad P70 last year and it was too heavy for me.. The P51 is still fine for day to day transport.

  2. I have a question. Originally the P51 backlit keyboard was to be blue according to the Lenovo website. Now when I try to search for it there is nothing there. Can you confirm it is in fact blue or did they go back to white?

  3. Hi Yves,
    thanks for your review. I hope you can work on the linux review, or provide a little more insight inside this review. I guess the issue with Linux and docking is to do with changing from intel mode (powersaving) to nvidia?

    Regarding the price premium of Quadro cards vs geforce, there is one big advantage with Quadro: you are, I think, guaranteed that your hardware has a mux allowing pure discrete graphics (a direct connection from the Quadro to the laptop display). Laptops with Geforce don’t necessarily have this hardware feature, which would be annoying if you were a linux user, since Optimus still causes tearing problems on the laptop panel (hopefully bugs ironed out in the next Nvidia driver release).

    1. I guess the issue with Linux and docking is to do with changing from intel mode (powersaving) to nvidia?

      Yep, you have to switch cards with Bumblebee / Prime (e.g. prime-select nvidia or over /proc/acpi/bbswitch) and restart the xserver / xorg, if you were on intel before.

      And yes you can enable discrete cards only in the Bios – but this costs you all the energy savings intel gpus offer.

  4. Hi thanks for the reviewing. just a question. isn’t the track pad a Microsoft precision touchpad , which is on par with macbook trackpad? just want to check. I heard you need to update the driver on lenovo website tho.

    1. Hi, it is a precision touchpad, but this is mostly on drivers for Windows. It’s decent and usable, but still far away from a MacBook one in my opinion. But I didn’t test it much, always using the TrackPoint and have this disabled.

  5. How big/heavy is the power brick?
    Wish they had the option of a smaller/lighter brick preventing use of the GPU for the times when you want to travel lighter 🙂

    1. It’s a bit clunky.. Around 700 grams – i have an additional 90W Lenovo power adapter that can charge it when it’s in standby or turned off. While you use the ThinkPad P51 it does not charge, but holds the power drain.

  6. Hi,

    great Review. Can you tell me more Details of the Display (Brightness, Contrast and Colorgarmut)? Or better, can you tell me what display is in your P51. Is it the AUO or the LG? (FullHD nonTouch there are only 2 Display Panels)

    Thanks in advance


  7. Hello,

    Thanks for the nice review and input on this Laptop, I just received mine, and was about to install an ssd drive like you did, problem is that this things don’t come with caddy and cable, can you give me the part number for the kit so I can purchase it?

    Lenovo’s page is really not that helpful when it comes to things like these.

    I’m going to use the same slot as you, so it should be same part numbers.


    1. SSD storage bay or m.2 tray? It’s the same as for the P50, far easier to find.

      M.2 Tray: 4XB0L78233
      SATA SSD: 4XB0L63274

      1. Hello,

        I just ordered my P51 today online from Netherlands (4K UHD + Xeon) however thanks for providing part # for the ssd trays , I didn’t manage to find them anywhere online. Is there a place where you suggest I should by them (M.2 Tray: 4XB0L78233 // SATA SSD: 4XB0L63274 ) ?

  8. Can you provide an exact memory name that you have self installed? You wrote about ‘Crucial CL14 DDR4-2400’, but I couldn’t find such memories. I’m asking for this, because I know from the autopsy that not all memories will work. For sure older Lenovo laptops have build-in white list (supported hardware) within BIOS, and if you installed a hardware that no match to this list, then such laptop refuse to boot. Here is a compatibility memory list according to Crucial:


    Nevertheless this list is a bit vague, because there are DDR4-2666 SODIMM memories, but according to Intel’s products specification i7-7820HQ or even E3-1535M v6 won’t operate on such memories:


    On this list there are also ‘Ballistix Sport LT DDR4-2400 SODIMM’ with Intel XMP 2.0 profiles, but I have no clue if Lenovo P51 supports XMP and if it’s worth buying such memories.

    Best regards.

    1. KHX2400C14S4/16G (sorry not using Crucial, but Kingston HyperX Fury. Stats are the same as posted, had Crucial in the P70 .. mistaken here).

  9. Thanks for this great review!

    Do you have the coil whine sound? Some sources seem to report it.

    Best regards,

  10. Hi,

    Nice review – I’m in two minds whether to go for this or wait a bit longer for the P52 which must be anytime now…

    Can you use the internal display and one external display on the dock? I’ve searched high and low for an answer to this, but have drawn blanks.


    1. Yes, you can – at least under Linux (never used it though). Personally i would wait for the P52, it brings a lot of neat upgrades and a six core CPU.

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