HP Z6 G5 A Workstation Review: 96-Core AMD Ryzen Threadripper Pro 7995WX Impresses

System Benchmarks: Power and Thermals

The HP Z6 G5 A, Ryzen Threadripper 7000 & Intel Xeon W9-3495X Test Bed and Setup

We used the following test systems for our AMD Ryzen Threadripper Pro 7995WX, Ryzen Threadripper 7980X/7970X, and Intel Xeon WS-series testing:

The two main aspects of power for a system like this are the idle and load measurements. For the CPU on its own, the Ryzen Threadripper Pro 7995WX is rated for a TDP of 350 W. For the system as a whole, however, we have the base power consumption with the GPU to consider, too. The official listing of the NVIDIA RTX A4000 16 GB included with the Z6 G5 A is a 140 W TDP, so a CPU+GPU combined should be around 490 W.

In our peak power test from our CPU suite, the AMD Ryzen Threadripper Pro 7995WX didn't go beyond its 350 W TDP, with a peak output of 350.1 W. This is similar to the other Ryzen Threadripper 7000 processors we've tested, which also hovered around the rated specifications as far as power is concerned.

(Click to enlarge graph)

Looking a little deeper into the Ryzen Threadripper Pro 7995WX within the HP Z6 G5 A and how it performs in a benchmark, we ran the CineBench R23 multi-threaded test on a loop, with a focus on CPU package power and thermals. The maximum temperature we saw in this test was 93.5°C, which is within the processor's TJMax of 95°C. We also observed that the CPU never exceeded the rated TDP of 350 W, with dips between the load intensities as it went in and out of each CB23 MT test cycle.

As the HP Z6 G5 A is a workstation and not specifically all about the CPU, we've also decided to include other tests to work out the power consumption of the other components, such as the NVIDIA RTX A4000 graphics card, as well as other devices such as cooling, fans, and the 2 x HP Turbo Z PCIe 5.0 x4 M.2 SSDs.

Screenshot from the HP Performance Advisor software

With both the CPU and GPU running intensive workloads simultaneously of each other (Prime95 with Small FFTs and FurMark 4K at maximum settings), we observed a maximum power draw at the wall of 567 W; this includes the CPU, GPU, and motherboard, and every other component installed into the system.

The following is the peak temperature of each component:

• CPU: Threadripper Pro 7995WX: 92°C
• GPU: RTX A4000: 80°C
• SSD 1/2: HP Z Turbo Drive: Both at 34°C

All of the components within the HP Z6 G5 A were within their rated specifications, and it's clear that all of the system cooling, including the large CPU cooler, is doing its job. At full load, the system was noticeably audible, with all of the associated fans quickly ramping up to 100% as workloads were placed on it. This is understandable, given the intensity of the workloads placed on both the CPU and GPU.

Read on over to the next page for some compute performance comparison, including rendering, between the AMD Ryzen Threadripper Pro 7995WX versus the Threadripper 7980X, Threadripper 7970X, and the Intel Xeon W9-3495X processors.