>> After a few seconds, the CPU is throttled down to 1.8 GHz. >> >> Tokiu prikolu su desktop'iniu i5-8400 isvengtum.. o laptop'e - loterija, storesni/sunkesni - laimingesni.. > > Va čia jau blogiau. Reikės išsirinkus modelį paieškot normalių testų. PS. modifikacija su galingesniu GPU ar su silpna GPU turi itakos.. Ypac jei ausinimo sprendimas tarsi "shared" tarp CPU ir GPU, o review ima koki nors testa, kur apkrova eina per CPU ir GPU: https://www.notebookcheck.net/Lenovo-ThinkPad-E580-i7-8550U-RX-550-Laptop-Review.286856.0.html https://www.notebookcheck.net/fileadmin/_processed_/b/6/csm_open_733945a2e4.jpg It seems as if the E580’s cooling solution is identical to the E480 that was equipped with the slower Core i5-8250U microprocessor. We were thus very curious how the E580’s more powerful CPU would perform, and it did not take long to disappoint us. In Cinebench R15’s multi-core test, the E580’s nominally faster Core i7-8550U turned out to be slower than the E480’s Core i5-8250U. This was not only the case in the stand-alone test, but also during our sustained load test running Cinebench in a loop. -- https://www.notebookcheck.net/ThinkPad-E480-i5-8250U-RX-550-Laptop-Review.280524.0.html https://www.notebookcheck.net/fileadmin/_processed_/9/6/csm_internals_840eb2e9fb.jpg In the E480, the CPU never reaches the maximum clock rate of 3.4 GHz in the Cinebench multi-core test. At the beginning of the test, the clock rate is 2.9 GHz, which means that the CPU is allowed to consume about 25 watts. After a few seconds, the CPU temperature reaches 78 °C (172.4 °F) and the clock rate drops to 2.3 GHz. At the same time, consumption drops to 15 W. -- https://www.notebookcheck.net/Lenovo-ThinkPad-T580-i7-8550U-MX150-UHD-Laptop-Review.299796.0.html https://www.notebookcheck.net/fileadmin/_processed_/2/5/csm_internals_dd343f23e9.jpg Lenovo has increased the TDP in many current-generation ThinkPad models. For instance: The ThinkPad T480s is allowed to draw 44 watts over a prolonged period of time. Lenovo has also raised the TDP limit in our current review device, because the T580 is allowed to draw 25 watts over an extended period. Here Lenovo actually allows a power consumption of 44 watts and a clock rate of 3.7 GHz for a short time. However, this is only possible for 28 seconds and after that, the power consumption falls down to 25 watts. This also explains the initial results in our Cinebench R15 benchmark loop, where the T580 achieves the best results in the first benchmark run. After 10 benchmark runs with a relatively stable score of about 620 points, the score dips significantly in the 12th benchmark run. The reason for this is that there is an additional thermal limit of about 80 °C (176 °F), which apparently kicks in when the processor continuously draws 25 watts and is taxed over an extended period of time. Here the clock speed falls down to 2.4 GHz, but it picks back up again after the CPU cools off. + All in all, we are very satisfied with the CPU performance of the T580. The Core i7-7500U in the T570 was 43% slower. Nevertheless, the T580 cannot keep up with the performance of the workstation CPU in the ThinkPad P51. In addition, the new 45-watt hexa-core processors like the Core i7-8750H are significantly faster than the Core i7-8550U. (uzuomina i mobilia workstation plyta uz dafyga pinigeliu): https://www.notebookcheck.net/Lenovo-ThinkPad-P51-Xeon-4K-Workstation-Review.229212.0.html Lenovo has increased the TDP limit from 45 to 55 watts (even 75 watts for a short time), so you can utilize the high clocks. You can also notice the advantage of the thicker construction in the benchmarks. While the same Xeon processor in the much slimmer Dell Precision 5520 is still on par in the Cinebench R15 Single test, it suffers from temperature problems in the Multi test and falls behind by 17%. The difference compared to the slimmer ThinkPad P51s is also significant, because the ULV processor does not even manage half the points of the P51 (CB R15 Multi). ========= Zodziu cia tiems pasakotojams apie elektros taupyma CPU-heavy darbuose su laptop'ais vietoj stacionaro reiktu truputi susimastyt..