Razer Blade Pro 17 (2019) Thermal Testing – Does 4 Fans Help?
So just how hot does it get and is there any throttling In this testing Ill, be taking a detailed look at thermals and seeing how much we can improve performance with some simple tweaks., The Razer Blade Pro 17 is available in different configurations. My model has the Intel i7 9750H CPU 100 watt, Nvidia RTX 2070 Max Q, graphics and 16gb of memory running in dual channel so expect different results with different specs.. You can find updated prices for different models linked in the description. On the bottom. Weve got air intake vents over all four fans. Yes, thats right four, while the back behind the rubber is the air exhaust., The rubber feet at the back actually raise it up quite a bit which should aid air flow and also help reduce the intake fans. Sucking the exhausting hot air straight back in. Inside weve got Razers vapor chamber cooling over the CPU and GPU dies, while the two fans at the front dont appear to be connected, so theyre just helping to bring more air into the system, which is always welcome. By Default Razer has actually undervolted the laptop by 0.1v, which is great to see so we are expecting above average, results compared to the competition at stock.. This was only to the core voltage offset and not the cache.. I have also manually undervolted a little further with Intel. Xtu pushing it to 0.15v, however, when doing this, the cache voltage is linked to the core voltage offset.
So with my manual change, both values were modified, whereas Razer are only changing one. In Razers Synapse software we can either set balanced mode and optionally set fan, speed to maximum or instead select custom. Ive tested with both, but while testing custom Ive set both CPU and Gpu to high – and I found doing this to the GPU – would overclock it by 100Mhz on the core and 400MHz on the memory.. Unfortunately, it does appear were limited here in that we cant manually, set the fan speed to maximum like we could in balanced mode, which seems a bit strange. These custom higher performance options are where we would want higher fan. Speed. Thermal testing was completed in an ambient room. Temperature of 21 degrees Celsius so expect different results in different environments. Ive tested idle down the bottom, and it was on the warmer side, not really an issue, though, and this is because the fans were completely silent.. The rest of the results are from combined CPU and GPU workloads and are meant to represent worst case scenarios, as I ran them for extended periods of time.. The gaming results towards the upper half of the graph were tested by playing Watch Dogs 2. As I find it to use a good combination of processor and graphics., The stress test results shown on the lower half of the graph are from running the Aida64 CPU stress test, with only the stress, CPU option checked and the Heaven GPU benchmark at max settings at The same time to fully load the system.
Lets start with the stress test results in balanced mode, so keep in mind. This still has the default 0.1v undervolt on the CPU and temperature wise. This looks fine. When we enable the custom mode with the CPU and GPU set to high. We see an increase in CPU temperature, as this raises. The power limit of the CPU and more power equals more heat, but better performance.. The GPU drops back a degree, as this also raises the fan speed as youll hear soon – and this is despite the GPU overclocks, that this is applying. By undervolting the CPU a little father. It was possible to lower the temperatures a bit more and then, with the cooling pad, it was possible to get a slight improvement.. The gaming results saw a similar pattern. However, the temperatures of the CPU were a bit cooler in this particular game compared to the stress tests, but results will always vary by game.. These are the average clock speeds for the same tests. Just shown., With balanced mode, were seeing lower levels of CPU performance due to the lower power limit. It sets., With the stress tests running simply enabling the custom settings to boost the CPU power limit is enough to get us 700MHz extra on all 6 cores. It didnt go further due to power limit throttling.. This is why, in the next result, when the CPU undervolt is pushed further, were now able to hit the full 4GHz, all core turbo boost, speed of the i7 9750H.
As thermals were already under control. By this point, the cooling pad makes no real change.. The gaming tests, on the other hand, were pretty similar, though we saw more of an increase to GPU clock speed here, as the GPU was constantly power limit throttling during the stress test, which seems to be why the clock speed didnt, raise even with the overclocks applied From the custom settings. Dont panic, though, power limit throttling on the GPU happens on pretty much all RTX laptops, Ive tested in this workload. You should be able to improve that with undervolting.. These are the average CPU TDP values during these same tests, and we can see why balanced mode was behind its setting PL1 to 35 watts, while custom mode limits the CPU TDP to 55 watts.. These are the average CPU clock speeds, while under a CPU only workload., While balanced mode caps, the CPU power limit to 35 watts. We can still reach higher clock speeds with the available power by undervolting further.. We couldnt quite hit the full 4GHz all core turbo speed of the 9750H. In this workload with the custom mode, however, my little extra undervolting did get us all the way, there. Heres how these tests look in terms of temperatures again, the extra undervolting is improving thermals. As well as clockspeed., This is because less power equals less heat. As doing this generally lowers the CPU TDP. To demonstrate how this translates into performance. Ive got some Cinebench CPU benchmarks here.
. In this workload, the average result, even with the custom settings, enabled seemed a little behind the few other 9750H machines Ive tested, but the additional undervolting helped.. So theres, not too many extra changes. We need to make due to the default CPU, undervolt and GPU overclock, but lets see if these changes improve performance in games., Ive tested Far Cry 5, with the built in benchmark at 1080p, and the red bar is with my extra CPU undervolt so 0.15v on both The core and cache while stock is just 0.1v to the core only which is the default. Theres, not really a difference here. In fact, my changes are actually slightly worse in all cases. Ive also tested balanced mode out in the green bar and, as we saw earlier, this mode does run warmer, but its not actually performing all that far behind and just to confirm. The default undervolt still applies in this mode. Youll, hear shortly. How much quieter balanced mode is so its a good option if you dont want loud fan noise while still performing quite well., If youre after more gaming benchmarks from the Razer Blade Pro 17 check the card in the top right, where Ive tested 20 different games.. As for the external temperatures, where youll actually be putting your hands at idle, it was a bit warmer than usual, probably due to the warm internals combined with the metal body., While gaming in custom mode, which was running the fans at maximum the keyboard and wrist rest Were fine just a little warm.
Similar results with the stress tests running, though hotter up the back. However, you shouldnt be touching there.. This is the same test with the fans at maximum now, but also higher levels of performance.. We can see the air exhausting out the back below the screen partially heating the screen, so it will be interesting to see how that holds up long term.. As for the fan noise produced by the laptop Ill, let you have a listen to some of these tests. At idle. The fans were completely silent, which explains the warmer idle temperatures. Thatll, always be a trade off. In balanced mode. It was noticeably quieter compared to most other gaming laptops Ive tested, though again thats, another trade off with lower performance, as we saw earlier, but you do at least have the option of running it. Quieter. Under stress test with either balanced mode and the fan manually, maxed out or in custom mode. It was running at the same level, and this was now pretty similar to most other machines, Ive tested under this same workload.. Overall, I was quite happy with these results. From the Razer Blade Pro 17., It was warmer than usual at idle, but to be fair, the fans were stopped, not really an issue idling a little warm anyway., Balanced mode offered a good way for us to limit performance. If we want to stick to lower fan speeds, while custom mode gave us nice performance improvements. While gaming at all times, I didnt consider the temperatures hot as it didnt get to 90c, at least in the specific game I test with.
. This did happen with the stress tests once the custom settings were enabled. However, as we saw, it was possible to improve thermals with further undervolting or by using a cooling pad. Its worth, keeping in mind that both the CPU and GPU are allowed to run above spec. Up to 55 watts on the CPU and 100 watts on the GPU. So while this will give us extra performance, it also results in extra heat, but despite these higher limits, it seems to be handling it alright.. With regards to the default undervolt Ill. Also note that, after resuming from sleep or hibernation, it was no longer applying until I rebooted the machine.. The undervolt is definitely default by Razer, as it keeps coming back. Even after a fresh install of Windows and setting the BIOS to defaults. The 230 watt power. Brick included by Razer, with the Blade Pro 17 seems to be adequate while running in custom mode, so with the higher CPU power limit and graphics overclocked, the battery did drain to around 95, but I didnt see it drop below this.. These differences in performance shown arent hard and fast rules. There are different factors which will vary results, primarily the temperature of the room, youre running in application of thermal paste, and even the specific hardware which comes down to the silicon lottery.. You may not be able to undervolt or overclock your hardware the same as me. It depends on the chip and its specific power requirements, so dont just blindly copy my settings and do some testing to find out where your stable point is for best results.
. In the case of Razers stock out of the box undervolt, though, in my case it did appear to be stable, I didnt have any issues with it.. It may be possible to further improve temperatures by swapping the thermal paste. However, as this is a review unit that I have to send back Im not able to change the paste, otherwise, the next reviewer will unknowingly report different results. Due to what Ive, done. Additional undervolting, boosting fan, speed or using a cooling pad are much easier for most people to do anyway and as weve seen, these tweaks did help improve performance of the Razer Blade Pro 17 gaming laptop.. So what did you think about the thermals from Razers new Blade Pro 17 gaming laptop Its going quite well after some small tweaks, its kind of hard to really measure? If the two extra fans towards the front are helping much but its good to see, they appear to be taking cooling seriously with this change and also undervolting out of the box..