HP Z2 G9 2024, Core i9-14900K, 32GB, 1TB SSD, RTX A4000

A 24-core Intel Core i9-14900K and NVIDIA RTX A4000 16GB GPU fit into a redesigned SFF chassis that supports full-length cards and future upgrades. Dense I/O with 10 USB-A ports, USB-C 3.2 Gen 2x2, and four DisplayPort 1.4a outputs handles complex multi-monitor rigs without dongles. This workstation suits engineers and data analysts running certified simulation or rendering workloads in tight desk spaces.

CPU Intel Core i9 14900K
RAM 32 GB
Storage 1 TB
GPU NVIDIA RTX A4000
Form Factor sff
psu w 550
OS Windows 11 Pro for Workstations
HP Z2 G9 2024, Core i9-14900K, 32GB, 1TB SSD, RTX A4000 desktop
81 Overall Score

No current retailer price

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Snapshot

The 30-Second Version

A 24-core i9 in a small box with a pro GPU. Buy it for work, not for play.

Pros & Cons

Pros

  • i9-14900K is one of the best workstation CPUs we've tested 96th
  • SFF chassis still fits full-height, full-length GPUs 91st
  • 10 USB-A ports plus USB-C means you'll never want for connectivity 76th
  • Windows 11 Pro for Workstations out of the box 73rd

Cons

  • RTX A4000 is mid-pack for GPU performance in this class
  • 550W PSU limits future upgrade paths
  • 5kg weight is chunky for something called small form factor
  • Gaming performance is a weak spot at 70.6

The proof

Performance

The i9-14900K is an absolute monster, sitting in the 95th percentile for CPUs in our database. That's top of the charts territory. 32GB of DDR5 at 4800 MHz is solid, though not bleeding edge, and the 1TB PCIe 4.0 SSD lands right around average for this class. The RTX A4000 is a pro-grade card, not a gaming card, so it's built for CAD, rendering, and simulation work rather than frame rates. What surprised us is how much HP managed to fit in here without thermal throttling becoming a disaster. The 550W PSU is adequate but doesn't leave much headroom if you're thinking about future GPU upgrades.

Performance Percentiles

CPU 95.5
GPU 73.3
RAM 76.4
Ports 90.5
Storage 69.1
Reliability 70

Specifications

Full Specifications

Processor

CPU Intel Core i9 14900K
Cores 24
Frequency 3.2 GHz
L3 Cache 36 MB

Graphics

GPU NVIDIA RTX A4000
Type Discrete
VRAM 16 GB
VRAM Type GDDR6

Memory & Storage

RAM 32 GB
RAM Generation DDR5
Storage 1 TB
Storage Type NVMe SSD

Build

Form Factor sff
PSU 550
Weight 5.0 kg / 11.0 lbs

Connectivity

USB-C Ports 1
USB Ports 10
HDMI 4x DisplayPort 1.4a Output
DisplayPort 4x DisplayPort 1.4a
Bluetooth No
Ethernet Gigabit Ethernet

System

OS Windows 11 Pro for Workstations

vs Competition

The Mac Studio M4 Max is the obvious alternative if you're not tied to Windows or NVIDIA. It's smaller, quieter, and Apple's silicon handles creative workloads beautifully, but you lose CUDA support and upgradeability. The Dell Tower ECT1250 gives you more room to grow with a bigger PSU and better cooling, but it's a full tower so you're trading desk space for headroom. The Lenovo Legion and MSI Aegis are gaming-focused machines that'll beat the Z2 in frame rates but fall behind in pro app stability and driver certification.

Spec HP Z2 G9 Apple Mac Studio M5 Max Lenovo T Series Towers Legion Tower 5a Gen 10 Dell Desktop ECT1250 CLX SET TGMSETRTU5204BM MSI Aegis ZS2 A9NVP-1407US
CPU Intel Core i9 14900K Apple M5 Max AMD Ryzen 7 7800X3D Intel Core Ultra 7 265 Intel Core i9 14900KF AMD Ryzen 9 9900X
RAM (GB) 32 64 32 32 64 32
Storage (GB) 1024 4096 4096 2048 8192 2048
GPU NVIDIA RTX A4000 Apple (40-Core) NVIDIA GeForce RTX 5070 Ti Intel UHD Graphics NVIDIA GeForce RTX 5070 NVIDIA GeForce RTX 5070
Form Factor sff mini mid-tower sff mid-tower mid-tower
Psu W 550 480 850 180 850 750
OS Windows 11 Pro for Workstations macOS Windows 11 Home Windows 11 Home Windows 11 Home Windows 11 Home
Compare Compare Compare Compare Compare
Product CPUGPURAMPortsStorageReliability
HP Z2 G9 95.573.376.490.569.170
Apple Mac Studio M5 Max Compare 95.883.698.489.198.299.3
Lenovo T Series Towers Legion Tower 5a Gen 10 Compare 73.593.178.188.498.270
Dell Desktop ECT1250 Compare 88.658.781.874.58370
CLX SET TGMSETRTU5204BM Compare 9589.296.584.299.211.6
MSI Aegis ZS2 A9NVP-1407US Compare 92.689.287.390.58337.4

Price

Value & Pricing

Pricing is all over the map depending on where you live. US listings hover around $1,849 to $1,949, which feels fair for this spec sheet. The EUR and BRL prices are significantly higher, and at those numbers you should seriously consider alternatives. For US buyers, this is a solid deal. For everyone else, shop around before committing.

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Overview

The HP Z2 G9 SFF is a workstation that punches way above its size class. You're getting a 24-core i9-14900K and an RTX A4000 with 16GB of VRAM crammed into a small form factor box that won't eat your entire desk. The headline here is simple: near-flagship CPU performance in a package that fits under a monitor. HP redesigned this thing to fit full-height, full-length GPUs, which is rare for SFF machines and honestly kind of impressive.

Common Questions

Q: Can I upgrade the GPU later?

Technically yes, the chassis supports full-height cards. But the 550W PSU is the real bottleneck. An RTX A4000 draws about 140W, and anything beefier will push that power supply to its limits. Plan on a PSU swap if you want a bigger card.

Q: Is this good for gaming?

Not really. The RTX A4000 is a workstation card with pro drivers, not gaming drivers. You'll run games, but you'll leave performance on the table compared to a similarly priced RTX 4070 or 4080 gaming rig. This machine scored 70.6 for gaming, which is our weakest area for it.

Q: How noisy is it under load?

The i9-14900K runs hot, and in an SFF chassis the fans have to work. Expect audible fan noise during sustained renders or simulations. It's not jet engine territory, but it's not silent either.

Who Should Skip This

If you're looking for a gaming machine, this isn't it. Go get a Lenovo Legion or MSI Aegis instead, you'll get way more frames per dollar. And if you're outside the US where prices jump significantly, the Mac Studio M4 Max starts looking like a much smarter buy for creative work.

Verdict

If you need serious CPU horsepower in a compact chassis and you're doing real workstation tasks, the Z2 G9 SFF is an easy recommendation at US pricing. The i9-14900K alone makes this worth considering, and the fact that HP managed to fit an RTX A4000 in here without it becoming a space heater is genuinely impressive. Just don't buy this expecting a gaming rig, and don't overpay if you're outside the US.

Usage Scores

Overall (81.3)AI/LLM (67.4)Gaming (72.3)Portability (78)Creator (75.9)Business (79.8)Developer (78.7)Home Office (83.9)Workstation (83.4)
  • Overall81.3
  • AI/LLM67.4
  • Gaming72.3
  • Portability78
  • Creator75.9
  • Business79.8
  • Developer78.7
  • Home Office83.9
  • Workstation83.4

Other Configurations12

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