HP Z Z4 G5, Xeon w5-2545, 16GB, 512GB SSD, RTX 2000 Ada, Black

The Xeon w5-2545 is the real deal, landing in the 83rd percentile for CPU performance. But 16GB of RAM and a 512GB SSD drag the overall score down to 71.1. Buy it for the CPU and the platform, then immediately upgrade the memory and storage.

The Xeon w5-2545 is the headline act. 12 cores at 3.5GHz base with a 4.7GHz turbo and 30MB of cache puts it in the 83rd percentile for CPU performance in our database. That's genuinely strong. Multi-threaded tasks like rendering, simulation, and dataset crunching will fly. Single-threaded work gets a boost from that turbo clock too. This chip is one of the better workstation CPUs we've tracked, and it's the main reason this machine earns its keep.

The RTX 2000 Ada is a different story. 16GB of GDDR6 is nice for VRAM-hungry workloads, but the GPU itself lands at the 69th percentile. It's above average, sure, but it's not going to set any records. For CAD and video editing, it's plenty. For heavy GPU rendering or AI training, you'll feel the ceiling. The 16GB of DDR5 ECC RAM at 4800MHz is the real bottleneck. That's a 52nd percentile showing, which is about average, but average RAM in a workstation is like average brakes on a race car. You'll want 32GB minimum for the kind of work this machine is marketed for. The 512GB PCIe 4.0 SSD sits at the 42nd percentile, which is underwhelming for a system at this level. Fast enough for boot and app launches, but you'll be juggling project files before long.

Stacked against the competition, the Z4 G5 is a mixed bag. The Apple Mac mini M4 Pro crushes it on compactness and efficiency, though it gives up the PCIe expansion and ECC RAM that workstation buyers often need. The Lenovo Legion Tower 5a Gen 10 and ASUS ROG GM700 are gaming-focused machines that'll beat the Z4 G5 on raw GPU performance per dollar, but they lack the Xeon's multi-threaded muscle and ECC memory support. The Dell Area-51 is a wildcard, more of a statement piece than a practical workstation. The Horizon Pcs Autherium Dragon is a boutique build that'll likely out-spec this HP on paper, but you're gambling on support and reliability. The Z4 G5's 69th percentile reliability score suggests HP's workstation pedigree still counts for something, even if the specs feel conservative.

Pricing on the Z4 G5 is all over the place. We're seeing USD 5,187 to USD 6,166 across two US listings, a spread of USD 979 for what appears to be the same configuration. That's a meaningful chunk of change, and it pays to shop around. At the low end, you're getting a strong CPU and a capable GPU in a chassis with real upgrade potential. At the high end, you're paying a premium for the HP badge and the workstation certification. The value proposition hinges on how much you need that Xeon and ECC RAM versus a consumer chip that might actually beat it in some workloads. For pure performance per dollar, this config feels thin on RAM and storage for the price. You're buying the platform and the CPU, then budgeting for immediate upgrades.

The HP Z4 G5 posts a 71.1 overall score in our database, which lands it in solid but not spectacular territory for a workstation. The CPU is the star here. That Xeon w5-2545 sits at the 83rd percentile for processor performance, and the port selection matches it at 83rd. But the RAM and storage pull the average down hard. 16GB of DDR5 and a 512GB SSD in a machine built for rendering and simulation feels like showing up to a marathon in flip-flops. You'll be upgrading this thing before you finish unboxing it if your workloads are as serious as HP's marketing suggests.

The RTX 2000 Ada with 16GB of GDDR6 is a capable pro GPU, landing at the 69th percentile. Not a chart-topper, but it'll chew through CAD, video editing, and moderate rendering without breaking a sweat. The 775W PSU gives you headroom for future GPU upgrades, which is good because you'll probably want one. At 12.6kg, this is a desk anchor, not a portable rig. It's built to sit in one spot and work all day, and the 10 USB-A ports plus 4 Mini DisplayPort outputs suggest HP expects you to plug in a small army of peripherals and monitors.

If you're doing heavy GPU rendering, AI training, or 8K video editing, the RTX 2000 Ada at the 69th percentile will feel like a bottleneck. You'd be better off with a machine that prioritizes GPU horsepower over CPU, or budgeting for an immediate GPU swap. If you need something compact, the 39 out of 100 compactness score tells you everything. This is a full tower that weighs 12.6kg. And if you're on a tight budget, the USD 5,187 to USD 6,166 price range combined with the immediate RAM and storage upgrades you'll need makes this a tough sell. You're paying for the Xeon and the HP workstation pedigree, not for a complete out-of-the-box experience.

The HP Z4 G5 is a solid foundation with a genuinely excellent CPU and a frustratingly thin RAM and storage config. The 83rd percentile CPU performance is the reason to buy this machine. The 52nd percentile RAM and 42nd percentile storage are the reasons to budget for upgrades before you even power it on. If you need ECC memory, a Xeon, and HP's workstation support, this is a reasonable starting point. Just know that the out-of-the-box experience won't match the marketing. Plan on adding RAM and a second drive within the first month, and you'll have a machine that can handle serious work for years.