Duration: 0:00

54 views

0

The only difference to the hardware is the re-applying of a new type of thermal paste, and the Cinebench score has risen from 1806 to 2371. I have triple-confirmed the new score. It's true, but newly applied thermal paste always performs better, so only time will tell how well this new paste does in the long term. Therefore it's important to do this type of benchmark test once a while to test whether the computer needs maintenance or not. Therefore the thermal conductivity of the thermal paste is as important as its long term stability. When I first applied the previous paste, the score was about 2308, but after about 3 weeks of light load, it drops to 1806. Accidentally, 1800 is about the average score for this CPU found on the internet.

Before:
Benchmark PCmark 8.0
CPU mark: 13,349
3D mark: 1,337
Cinebench R20 score: 1806

After:
Benchmark PCmark 8.0
CPU mark: 14,479
3D mark: 2,210
Cinebench R20 score: 2371 (triple confirmed)

Note: the before and after measurements are not objective. They are actual results tested between 2 different thermal paste and the added 8GB RAM. Adding 8GB will only improve the performance slightly, and is not the main factor of this observed improvement.

Note 2: Both games tested here perform smooth, and they were tested before the new improvement, so even with a Cinebench score of 1800, it's rocking it.

Note 3: The Cinebench 1806 score was recorded after adding the 8GB RAM, so RAM has a little effect on these tests. Here are the improvements in percentage.
3D: 2210/1337=165%
CPU: 14479/13349=108%
Cinebench: 2371/1806=130%

Note 4: My tested score is below Intel Core i7-7700K. That is a 2016 desktop 95W CPU that supports DDR4 2400MHz RAM. On the other hand, my AMD CPU is a 2020 laptop 15W CPU that supports DDR4 3200Mhz RAM. In theory, the AMD 4500U should outperform the i7-7700K easily both in CPU and GPU, but the desktop CPU allows i7-7700K to run at higher power and thus maintaining a higher processing power easier than a laptop CPU running at 15 watts. i7-7700K could be slightly faster than the AMD 4500U, but the AMD 4500U is many times more energy efficient. Newer CPUs are both more powerful and more energy efficient. Energy efficient CPU allows the laptop to run longer on the same capacity battery, and battery life is more important to a laptop than its processing power. Therefore to compare between CPUs, you need to compare them in many terms: matching-generation, base-CPU speed, base-power-consumption, and etc.

Note 5: spec is one thing. As demonstrated on this video, just changing the thermal paste improves the performance for the same computer to 130%. A lot of factors affect the real life performance of a computer. If a lot of trash software are installed in a computer, and get auto loaded partially during startup, then the computer would be very sluggish even with a highly specced PC.

In short, to get the best out of a computer, it needs to be maintained both in terms of hardware and software.

Extra on CPU:
The AMD Ryzen 5 4500U is outdated in the CPU world, but it is still very capable, especially when well-maintained. Laptops using this CPU should be able to turn into a capable gaming laptop for low to mid range games. A CPU mark score of 4000-6000 is enough for basic creativity works including 1080p video editing. For 4k video editing, you need to have 8000-10000. The recorded 14,479 score of the AMD Ryzen 5 4500U means it can do a lot of things, but for CPU intensive tasks, no CPU is really fast enough. Faster is better, but if you don't need the speed, paying extra to get the hardware is totally a waste of money, and CPU value does depreciate very quickly over time. Therefore unless you really need that extra new top speed, never buy the newest released CPU or laptops using the newest CPU. Older CPUs/PCs have a much better price to processing power ratio. This is a used laptop that costs me $150. In comparison, a new HP 14" Laptop with an Intel Celeron N4120 costs $199 with a CPU mark score of 2485. This is e-waste right out of the box. A refurbished Dell Latitude 5400 with an Intel i5-8265U costs $175, and it has a CPU mark score of 5942. It’s 5942/2485=2.39 times faster than the e-waste HP. The 8th Gen i5-8265U was released in 2018, and is still capable of doing some meaningful work on. The newer 2020 Intel Celeron N4120, on the other hand, is completely trash.