HP Z6 G5 A Tower
The AMD Ryzen Threadripper PRO 9955WX 16-core CPU and NVIDIA RTX 2000 Ada 16GB GPU handle 3D rendering and AI workloads, backed by 32GB of 6400 MHz DDR5 ECC RAM and a 1TB PCIe 4.0 M.2 SSD. Its mid-tower chassis offers 10 USB-A ports and four Mini DisplayPort outputs, making multi-display setups straightforward. Best for professionals in virtual production or machine learning who need a single-CPU workstation with room to expand to 96 cores.
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Snapshot
The 30-Second Version
The HP Z6 G5 A Tower is a high-end workstation with a 97th percentile Threadripper PRO CPU and ECC DDR5 RAM. It's built for 3D rendering, AI, and virtual production, not gaming. At around $8,617 USD, it's expensive but justified for professionals who need reliability and multi-core performance.
Pros & Cons
Pros
- Threadripper PRO 9955WX is a 97th percentile CPU, best-in-class for multi-threaded work 97th
- 32GB of 6400 MHz DDR5 ECC RAM is a standout at the 91st percentile 91st
- 10 USB-A ports and 4 Mini DisplayPort outputs give plenty of connectivity 83rd
- ECC memory and Windows 11 Pro for Workstations add real stability for pro workloads 69th
- 775W PSU and mid-tower design leave room for upgrades
Cons
- Compact score of 28.2 means this thing is huge and heavy at 13.20kg
- RTX 2000 Ada is only average for this class, 69th percentile GPU
- 1TB SSD is modest for a workstation at this price
- No USB-C ports listed, which feels dated for a modern pro machine
- Price is steep, around $8,617 USD or CAD 8,464
The proof
Performance
The Threadripper PRO 9955WX is the star here. With 16 cores and a 4.5GHz boost clock, it lands in the 97th percentile for CPU performance in our database. That's best-in-class territory. In practice, this means 3D renders that take 20 minutes on a typical desktop might finish in half that time. The 32GB of DDR5 ECC RAM is also a standout, sitting in the 91st percentile. ECC memory catches data corruption errors that regular RAM would silently pass along, which is a big deal for long-running simulations or financial modeling.
The RTX 2000 Ada is a professional GPU with 16GB of GDDR6. It's a solid performer, but it's not the top of the charts. Our data puts it in the 69th percentile for GPUs, which is about average for this class of workstation. For AI and machine learning tasks that lean on CUDA cores, it'll get the job done. But if your workflow is heavily GPU-bound, like real-time ray tracing or large model training, you might want to configure this tower with a higher-end GPU. The 775W power supply gives you some headroom, but not unlimited room for multiple flagship cards.
Specifications
Full Specifications
Processor
| CPU | AMD Ryzen Threadripper 9955WX |
| Cores | 16 |
| Frequency | 4.5 GHz |
| L3 Cache | 64 MB |
Graphics
| GPU | NVIDIA RTX 2000 Ada |
| Type | Discrete |
| VRAM | 16 GB |
| VRAM Type | GDDR6 |
Memory & Storage
| RAM | 32 GB |
| RAM Generation | DDR5 |
| Storage | 1000 GB |
| Storage Type | NVMe SSD |
Build
| Form Factor | mid-tower |
| PSU | 775 |
| Weight | 13.2 kg / 29.1 lbs |
Connectivity
| USB Ports | 10 |
| HDMI | 4x Mini DisplayPort 1.4a Output |
| DisplayPort | 4x Mini DisplayPort 1.4a Output |
| Bluetooth | No |
| Ethernet | Gigabit Ethernet |
System
| OS | Windows 11 Pro for Workstations |
vs Competition
Stacked against the Lenovo Legion Tower 7i Gen 10, the HP wins on CPU performance but loses on gaming value. The Legion is a gaming rig with a fast consumer CPU and likely a stronger gaming GPU for less money. But it lacks ECC RAM and the Threadripper's multi-core advantage. The Dell Aurora Gaming is in the same boat. It's built for frame rates, not 24-hour render jobs. The Apple Mac Studio M3 Ultra is the most interesting comparison. It's smaller, quieter, and Apple's silicon is genuinely impressive for video work. But the Mac Studio can't match the Z6 G5 A's expandability, and if your software stack needs CUDA, the Mac is a non-starter.
The ASUS ROG GM700 and The Horizon Pcs Autherium Dragon are both gaming-focused machines. They'll beat the HP in gaming benchmarks, but they're not in the same category. If you're deciding between a gaming PC and a workstation, the question is simple: do you need ECC memory and pro-grade drivers? If yes, the HP is the clear choice. If no, save your money and buy a gaming rig.
| Spec | HP Z6 G5 A Tower | Lenovo Legion Tower 7i Gen 10 | Dell Aurora Gaming | Apple Mac Studio M3 Ultra | The Horizon Pcs Autherium Dragon PITPJ7JXJ | ASUS ROG GM700 |
|---|---|---|---|---|---|---|
| CPU | AMD Ryzen Threadripper 9955WX | Intel Core Ultra 9 285K | Intel Core Ultra 9 285K | Apple M3 Ultra | 3.3 GHz core_i9 | AMD Ryzen 7 9800X |
| RAM (GB) | 32 | 32 | 32 | 96 | 64 | 32 |
| Storage (GB) | 1000 | 1024 | 2000 | 1000 | 5120 | 2000 |
| GPU | NVIDIA RTX 2000 Ada | NVIDIA GeForce RTX 5070 Ti | NVIDIA GeForce RTX 5080 | Apple M3 Ultra 60-core | NVIDIA GeForce RTX 5070 OC | NVIDIA GeForce RTX 5070 Ti |
| Form Factor | mid-tower | mid-tower | desktop | sff | mid-tower | mid-tower |
| Psu W | 775 | 850 | 1000 | - | - | 850 |
| OS | Windows 11 Pro for Workstations | Windows 11 Home | Windows 11 Home | macOS | Windows 11 Pro | Windows 11 Home |
| Compare | Compare | Compare | Compare | Compare |
| Product | CPU | GPU | RAM | Ports | Storage | Reliability |
|---|---|---|---|---|---|---|
| HP Z6 G5 A Tower | 96.6 | 69 | 91.2 | 82.7 | 63.6 | 69.4 |
| Lenovo Legion Tower 7i Gen 10 Compare | 97.3 | 88.1 | 82.9 | 100 | 73 | 69.4 |
| Dell Aurora Gaming Compare | 97.3 | 90.7 | 79.3 | 98.3 | 86.8 | 69.4 |
| Apple Mac Studio M3 Ultra Compare | 98.9 | 72.2 | 96 | 94.2 | 51.1 | 99.3 |
| The Horizon Pcs Autherium Dragon PITPJ7JXJ Compare | 99.1 | 84.5 | 92.7 | 98.9 | 97.3 | 11.2 |
| ASUS ROG GM700 Compare | 80 | 88.1 | 82.9 | 96.5 | 86.8 | 36.3 |
Price
Value & Pricing
Value is a tricky word when you're talking about an $8,617 workstation. Compared to consumer desktops, this looks absurdly expensive. But compared to other Threadripper PRO workstations, it's actually in line with the market. The Lenovo Legion Tower 7i Gen 10 and Dell Aurora Gaming are cheaper, but they're gaming machines first. They don't offer ECC memory or the same level of CPU performance. The Apple Mac Studio M3 Ultra is a real alternative if you're not tied to Windows or NVIDIA, and it's more compact. But you lose the expandability and the Threadripper's raw core count. For a professional who bills by the hour, the Z6 G5 A can pay for itself in saved render time. For everyone else, it's overkill.
Price History
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Overview
The HP Z6 G5 A Tower is a mid-tower workstation aimed squarely at people who need serious CPU muscle for virtual production, 3D rendering, and AI work. This config pairs AMD's Ryzen Threadripper PRO 9955WX, a 16-core chip that sits in the 97th percentile of our database, with 32GB of 6400 MHz DDR5 ECC RAM and an NVIDIA RTX 2000 Ada with 16GB of VRAM. It's not cheap. US listings hover around $8,617, and Canadian buyers are looking at roughly CAD 8,464. But this isn't a machine for casual browsing or light office work. It's built to chew through heavy, multi-threaded workloads all day without flinching.
People searching for a Threadripper workstation usually want to know one thing: is it worth the premium over a high-end consumer desktop? The short answer is yes, if your income depends on render times and stability. The Z6 G5 A brings ECC memory, Windows 11 Pro for Workstations, and HP's enterprise build quality to the table. Those aren't flashy features, but they matter when a crash costs you hours of work. The 1TB PCIe 4.0 SSD is fine for a boot drive, though you'll likely want to add more storage for large project files.
At 13.20kg, this is a hefty tower. It's not trying to be compact, and our scoring reflects that. The compact score is a rough 28.2 out of 100, which is one of the weakest areas for this machine. But if you have the desk space, the size means better cooling and easier upgrades. That's a fair trade for the target audience.
Common Questions
Q: Is the HP Z6 G5 A good for gaming?
Not really. The RTX 2000 Ada is a professional GPU optimized for stability and pro apps, not high frame rates. A gaming PC like the Lenovo Legion Tower 7i Gen 10 will give you better gaming performance for less money.
Q: How much does the HP Z6 G5 A Tower cost?
US listings show it around $8,617, and Canadian listings are roughly CAD 8,464. Prices vary by configuration and retailer.
Q: Can the HP Z6 G5 A be upgraded?
Yes. The mid-tower design and 775W power supply leave room for more RAM, additional storage, and a higher-end GPU. The 1TB SSD is easy to supplement with extra drives.
Q: Is the HP Z6 G5 A good for AI and machine learning?
It's solid. The Threadripper PRO CPU handles data preprocessing well, and the RTX 2000 Ada's 16GB of VRAM is useful for smaller models. For large model training, you'd want a more powerful GPU.
Who Should Skip This
Skip this if you're a gamer, a student, or anyone who doesn't need ECC memory and pro-grade drivers. The RTX 2000 Ada won't impress in games, and the compact score of 28.2 means this tower eats desk space. If you want a powerful desktop for less money, the Lenovo Legion Tower 7i Gen 10 or Dell Aurora Gaming are better fits. If you're in the Apple ecosystem and don't need CUDA, the Mac Studio M3 Ultra is smaller and quieter. This HP is for professionals who bill by the hour and need a machine that won't crash during a 12-hour render.
Verdict
Should you buy the HP Z6 G5 A Tower? If you're a 3D artist, AI researcher, or video editor who needs a reliable, expandable workstation with best-in-class CPU performance, yes. The Threadripper PRO 9955WX is a monster, and the ECC RAM is a real advantage for professional work. The RTX 2000 Ada is fine, but not the star of the show. If your work is GPU-heavy, you might want to configure this with a beefier card or look elsewhere.
But if you're a gamer or a casual user, this is the wrong machine. It's huge, expensive, and the GPU is optimized for stability and pro apps, not frame rates. You'd be paying a premium for features you'll never use. For the right buyer, though, this is one of the best Threadripper workstations on the market right now.