New PC built running slow

Sheraz · December 13, 2017

Recently I bought components for a 7900x built. I bought following components:

1. Intel 7900x cpu

2. Asus Rampage VI Extreme motherboard

3. g.skill trident z 3200 cl14 RAM

4. Gigabyte AORUS 1080 TI 11GB graphics card

5. Be Quiet Silent Loop 360mm cpu water cooler

6. EVGA Supernova 1000W G3 PSU

7. Samsung 960 Pro NVMe 512 GB m.2 SSD

8. Samsung 960 EVO NVMe 250 GB m.2 SSD

I thought this was a Ferrari built. At least it cost like one. But I don't see anything fast in it. I have mostly used it at stock speed which should be fast enough for everyday tasks but it doesn't feel like it. It takes 20 seconds just to see the BIOS screen (where it asks Press Del or F2 to enter UEFI BIOS) then another 25 seconds to see the Windows desktop. I heard this kind of system with NVMe should boot within 10-15 seconds.

My temperature stays below 40 oC generally, the gpu fans don't even turn most of the time. I tried ASUS's overclocking utility and got 4.4 GHz. The temperature rose to 85 oC. I benchmarked both stock and overclocked with Blender's BMW benchmark. With stock it finished in 3 minutes 58 seconds and with overclocked to 4.4 GHz it finished in 3 minutes 2 seconds. Now this doesn't seem too fast or even normal to me. When the same BMW benchmark is run through Blenchmark addon it renders in 1 minute with CPU rendering and in 52 seconds with GPU rendering. I don't know whats the difference between the two benchmarks when they are both rendering BMW benchmark. Could you please comment on it. Also could someone experienced please tell me how to systematically run benchmarks to rate the performance of my pc. I am well aware of the concept of silicon lottery and I am not looking for that but I at least want my pc to perform on par with similar systems.

Komplett · December 13, 2017

Reason for the slow boot time is most likely the bios having alot to load, its not unusual for the Extreme chipsets to reach a minute loading time due to alot of drivers etc. Try CrystalDiskMark and see what speeds you get on the SSD.

Regarding the CPU, the only software I actually know what a score means in is cinebench, there you can easily try out the CPU and see how fast it is and compare it to others with the same CPU, and even see what different clockspeeds does. Just remember to close all the background programs so the cpu doesnt have to run those at the same time, it will give you a lower score if you dont close everything prior to a benchmark.

Silicon lottery is only about how high clock speed you can have at an as low voltage as possible.