Dell Precision 7540 and 7740 Owner's Thread

Impressive scores. Would be probably even higher on Linux.
Did you undervolt the CPU for that test ?

 

Yes, since I've fine-tuned throttlestop with differents profiles, it's always running in background with undervolt active.

For the score, yes. Using the search function my windows score is the 4th (in absolute for 9980Hk). But there's a 7540 with linux with approx. 35k pts in multithread.

https://browser.geekbench.com/v4/cpu/14224350

Benchmarks are not so important for real world utilization but they give an idea.

 

Linux has notoriously higher Geekbench scores (mostly for single core) than both Windows and Mac, at least for some CPUs:

http://support.primatelabs.com/discussions/geekbench/17050-linux-vs-windows-results

Also, disabling some CPU mitigations (on Linux) can have quite an impact, depending on CPU.

There's also a Geekbench 5 beta1 available with newer tests among other things. Here's my score for the machine in my sig running Linux with an undervolt and most cpu
mitigations off: https://beta.geekbench.com/v5/cpu/3774

 

Interesting, I didn't know there was already version 5.
This is mine on-the-flight score:
https://beta.geekbench.com/v5/cpu/3784

Anyway the results with 8th gen cpus seems aligned in pure IPC (excluding the core count / higher freq.)

 

Hi

2 Questions.

Are the GPUs the normal RTX or the laptop/max-q?
I don´t know which GPU to take, the 4000 or the much more expensive 5000.
Is the 5000 so much better?
Someone has this RTX5000 in the 7740?

 

These GPUs will be power-limited compared to the desktop versions, similar to max-Q. Especially the RTX 5000.

RTX 4000 and RTX 5000 both have 110W TDP.
I haven't heard from anyone with a RTX 5000 yet so we don't have a comparison.

However, I will say that the situation was similar in the prior generation Precision 7730, with the Quadro P4200 and Quadro P5200 cards. They both had the same 110W TDP. Quadro P5200 had specs that put it on par with desktop GeForce 1080, but in reality it couldn't reach that performance level because of the power limit in this system. The GPU would just be power-throttled when under load. It didn't perform much better than the P4200 because of this. Disappointing, given the cost.

I suspect that the situation will be basically the same with the RTX 4000 vs RTX 5000. The difference this time is that the RTX 5000 also has more tensor and RT cores which you might be able to put to use without hitting the power limit. Tensor cores are for machine learning applications (also used for DLSS, but it won't make a performance difference over any other RTX card for that) and RT cores are used to power the ray tracing enhancements in RTX-enabled games and applications. If you might have use for these then maybe consider the RTX 5000; otherwise, I say save the $1000+ and get the RTX 4000.

We'll know more once someone actually splurges for the RTX 5000 card and posts some benchmarks...

 

Thanks

Another Question.
I will upgrade the ram to 64GB.
Which Ram should i use, Crucial, Hyper X ......, there is a recommendation?

 

I didn't realize until now that new review #4 is available at 15nb:
1. Precision 7740 evaluation serial 1: unpacking
2. Precision 7740 evaluation serial 2: boot initial test
3. Precision 7740 evaluation serial 3: upgrade deep test
4. Precision 7740 evaluation serial 4: professional full test
The author has a 7740 i9-9980HK RTX5000. He is stating current issues with 3200MHz RAM. AFAIK, the best available is CL=16 for 3200 RAM, so I don't understand the appeal over strict timing CL15/2666.

Turns out that my 7740 9-9980HK RTX4000 is slated to arrived by 9/9. I was mistaken in that only the WD19DC dock arrived yesterday. I have the 2X16 of GSkill CL16/3000MHz waiting to try for a slight improvement over 15/2666, and also a 2TB Samsung 970 EVO Plus. I'm no IT guy so might need some very gentle guidance in memory test when the time comes.

 

I hope it comes in the next time a comparison of the RTX 4000 and the RTX 5000.

 

This is a comparison for desktop versions running a newer version of Solidworks CAD that I use, but nonetheless I took it as guidance versus the big bucks for a RTX5000.

Tho down in the comments there something about altering Windows registry to support the newer RTX with the older versions of the Solidworks software that I still use.