HP Z2 G1i Black

The Intel Core Ultra 7 265K is a 96th percentile monster, making this one of the fastest CPU workstations we've tested. The port selection is also a highlight, but the NVIDIA RTX A1000 GPU is a disappointing pairing that drags the whole system down. Shop carefully, as the price varies by a staggering $1270, and you'll want to be on the low end of that range for this to make sense.

The star of the show is that Intel Core Ultra 7 265K. With a 3.9GHz base clock and 20 cores, it chews through multi-threaded workloads like a champ. In our benchmarks, it's one of the best CPUs you can get in a pre-built workstation right now, making it ideal for CPU-based rendering and complex simulations. The 32GB of DDR5-5600 is a strong pairing, sitting well above average and keeping the processor fed without any drama.

The weak link is the NVIDIA RTX A1000. With only 8GB of GDDR6, it's a middle-of-the-pack performer at best. It'll handle CAD and viewport work just fine thanks to its ISV certifications, but for GPU rendering or any serious creative work in apps like Blender or DaVinci Resolve, it's underwhelming. You're getting a top-tier CPU paired with a decidedly mid-tier GPU, which creates a bit of an identity crisis for a machine at this price point.

Stacked against the competition, the Z2 G1i is a specialist. The Apple Mac Studio M4 Max will run circles around it in GPU tasks and does so in a fraction of the physical space, but you lose the internal expansion and that specific Intel CPU performance. The Lenovo Legion 90Y6003JUS is a gaming-focused rig that will crush this HP in graphics but lacks the ISV-certified drivers and workstation reliability. The Dell Tower ECT1250 is a more direct competitor, often trading blows on CPU but usually offering a better GPU at a similar price. The HP's main advantage is that monster CPU score, but you have to really need those 20 cores to justify the trade-off in graphics power.

Pricing on this thing is all over the map. We're seeing a spread from $2594 to $3864 across vendors, which is a massive $1270 gap. At the low end, you're getting a workstation-grade CPU and build quality that's hard to beat for the money. At the high end, you're dangerously close to systems with much stronger GPUs. If you're buying, you absolutely need to shop around. The best deal we're seeing is on Newegg, where the price leans toward the lower end of that spectrum, making the CPU performance a much better value proposition.

The HP Z2 G1i lands in our database with a CPU score that's basically showing off, sitting in the 96th percentile. That Intel Core Ultra 7 265K with its 20 cores is a serious workhorse for simulation and rendering tasks. You also get 32GB of speedy DDR5-5600 RAM and a 1TB NVMe SSD, which puts the storage and memory in solid territory. But the NVIDIA RTX A1000 is the clear bottleneck here, landing in the 63rd percentile for GPU performance. It's a capable pro card for certified drivers, but it's not going to set any speed records for heavy 3D work.

This is a mid-tower workstation built for reliability and expansion, not for looking pretty on a desk. At 8.6kg, it's a chunky piece of kit with a 700W PSU and tons of ports, including a frankly ridiculous four Mini DisplayPort outputs. The port selection is a standout, hitting the 93rd percentile. It's clearly designed for multi-monitor setups in engineering or financial environments. Just don't expect to lug it to a LAN party.

If your work revolves around GPU rendering, 3D animation, or heavy video effects, you should look elsewhere. The RTX A1000's 63rd percentile performance is a real weak spot that will bottleneck your workflow. You'd be much better served by a system with an RTX 4070 or higher, even if it means sacrificing a bit of CPU headroom. This machine is also a hard pass for anyone who needs a compact or quiet system, as the mid-tower chassis is huge and the cooling fans will be audible under load.

The HP Z2 G1i is a niche machine that makes a lot of sense for a very specific buyer. If your workflow is dominated by CPU-bound tasks like software compilation, financial modeling, or CPU-based rendering, the 96th percentile processor is a legitimate reason to buy. For everyone else, the middling GPU performance is a tough pill to swallow. It's a solid foundation with a great power supply and tons of room to grow, so it's also a smart buy if you plan to immediately drop in a more powerful graphics card. Just don't pay the $3864 sticker price.