Entry Level Dell G5 SE Hotter Than Higher Spec?
Ive got the lowest version of the G5. Se here, which means weve got these specs, however Ive already tested the higher specced 4800H model too so well, compare results as well. Air comes in through the vents underneath which are positioned above the fans. However, on the inside of the bottom panel theres a dust filter mesh which may limit the air flow., There are no exhaust vents on the sides. Air comes out from the two corners on the back. When the lid is open, its not exactly blocking the vents, but hot air does blow onto the screen.. There are a couple of fans inside along with two heatpipes shared between CPU and GPU, and there appears to be a pipe dedicated to VRM coverage., As the G5 has an AMD, Ryzen, processor and Radeon graphics, its able to use smart shift which cannot be disabled.. Basically, this will dynamically shift power around to where its needed for optimal performance.. This will probably affect results, however, well be looking at long term averages here.. The G5 has the G key on F7 pressing. This enables high performance mode which boosts performance and sets the fan to max speed.. No undervolting to the processor has been done as theres, currently no support for this with Ryzen mobile. However, we will look at disabling turbo boost. You can find information on how to do this linked in the description. Thermals were tested with a 21 degree Celsius. Ambient room, temperature.
Idle results are down the bottom, and although it was much warmer when compared to most other laptops, the fans were also completely silent.. Worst case, stress tests were done with the Aida64 CPU stress test, with CPU only checked and the Heaven benchmark at max settings. At the same time and gaming was tested with Watch Dogs 2, as I find it to use a good combination of processor and graphics. Under stress tests, things were getting very hot, almost averaging 100 degrees celsius on the processor, and that was whether or not I boosted The fan, speed or limited the processor to base clock speed, only the cooling pad helped lower the temperatures, but, according to Dell, 100 degrees is ok.. The 5600M GPU was also quite hot here up to around 93 degrees. When playing an actual game. It was a bit cooler, but still definitely on the hotter side. Limiting to base clock, helped a bit more here for CPU temps. Then the cooling pad lowered the GPU temp quite nicely.. These are the average clock speeds while running the same tests. Under stress test. We see the biggest improvement to processor clock speed with the cooling pad, as presumably we were thermal throttling at 100 degrees prior to this.. We can also see why limiting to base clock made no change to thermals under stress test. The CPU was already around the 3GHz base clock speed in this workload anyway. When gaming, though best case, were able to get up to 3.
9GHz with the cooling pad or 3.7GHz without it.. Unfortunately, I havent been able to properly measure TDP, as HWInfo doesnt yet seem to understand smartshift. As a result, it seems to be reporting. The CPU and GPU, combined in one sensor., Lets actually see how games perform with these different settings. Ive tested Shadow of the Tomb Raider with the highest setting preset using the games benchmark tool.. This tends to be more GPU heavy, so its interesting that, by limiting the processor to base clock, speed its performing the best in this test. Perhaps the power that was no longer needed by the processor was able to boost GPU performance further, either way, though, no major differences in performance between these options.. If you want to see more gaming benchmarks from this Dell, G5 gaming laptop check the card in the top right or link in the description where Ive tested 21 games at all. Setting levels. Now lets take a look at a CPU only workload with the GPU idle.. Here are the clock speeds while running the Aida64 CPU stress test with all the default options checked, so were maxing out at around 4GHz over all 6 cores.. This is a heavier CPU workload than the one I ran earlier in the combined CPU plus GPU test. However, the processor was still around 99 degrees at stock, raising fan, speed with high performance, lowered it to 95, and the cooling pad helped out a fair bit, though, we saw the biggest temperature improvement by limiting to base clock.
. These are the power levels reported during these same workloads, though again not sure how accurate they are. Here are. Some Cinebench results to give you an idea of CPU only performance when the GPU is idle.. High performance mode gave the best performance, but using a cooling pad. Hardly offered a change. Running at base. Clock was lower, but, as we just saw also cooler so thats the trade off.. When we look at how it stacks up against others, though, the 4600H is doing well and beating the undervolted i7 10750H in the MSI GP75, which has the same core and thread count.. The G5 with 4600H, was also doing a little better than the TUF A15. With the same processor. As for the external temperatures, where youll actually be putting your hands at idle, it was on the warmer side compared to others, but it was only a little warm to the touch.. With the stress tests running at stock, the center of the keyboard gets to the mid 50s and it felt fairly warm but not hot.. It was similar in high performance mode with faster fan speeds which makes sense, given this hardly affected. The internal temperatures, as we saw earlier and note the hot spots on the bottom of the screen. I wouldnt say the screen – is blocking the air exhaust vents but theres definitely hot air blasting on the bottom corners of the screen, despite the angle of the vents. But this could vary based on screen.
Angle. Lets have a listen to how loud the fans get during these different tests.. It was completely silent at idle, which explains the higher idle temperatures noted earlier., With the stress tests running at stock, its around 47 decibels, then in high performance mode, its around 50, with the fans at max speed just slightly quieter than the 4800H model.. Now, with all of that in mind, lets see how this lower specced G5 compares against the higher specced G5. The key difference is the higher specced model has double the RAM and 8 core Ryzen 7 4800H.. In all cases, whether at idle, while under combined CPU plus GPU stress test or gaming, the lower specced Ryzen 5 model was a few degrees warmer in CPU temperatures as per the purple bars.. These are the GPU temperatures for the same tests and again the lower specced model was running hotter, though the difference was a fair bit bigger in some instances.. These are the CPU clock speeds for these same tests. Now it makes sense that the 4600H is able to clock higher its got fewer CPU cores, so that would allow it to reach these higher speeds.. When we look at the GPU clock, speed its significantly faster for the lower end model too far more so in the stress tests than I expected.. If you recall in the previous game, benchmark video link in the description, I did note that the cheaper 4600H model of G5 was able to beat the 4800H in some instances, and this seems to be why under heavy load, it seems capable of hitting higher CPU and Gpu speeds, though it does run hotter to achieve this.
, So there we have it under workloads where both the processor and graphics are active, such as gaming. The cheaper 4600H model seems to run a bit hotter. However, perhaps more interestingly, in some cases, its also able to outperform the more expensive 4800H model Im still looking into this and will do a full 20 game comparison soon. At the end of the day, the performance from this new all AMD G5 is quite good. Without the fans going crazy., Not everyone is going to want to run their laptop at these high temperatures when under load. Hopefully, some of the other Ryzen based laptops Im yet to get are able to do better in that regard, or maybe were going to have to change our expectations.. It may be possible to improve thermals by changing the thermal paste and, as I did buy this machine, I could do that. However, I want to keep it stock for now for some upcoming comparisons.. Let me know what you thought about the thermals from the Dell G5 special edition gaming laptop down in the comments and, if youre new to the channel youll definitely want to get subscribed for the upcoming full review to see everything.