Best Pick

HP Z6 G5 A Tower

38.8 Compact & SFF Score
AMD Ryzen Threadripper 9975WX64GB RAM1TBNo Graphics Card Installedworkstation
Why we recommend this

The 32-core AMD Ryzen Threadripper PRO 9975WX and 64GB of 6400 MHz DDR5 ECC RAM provide massive parallel processing power for heavily threaded workloads. Its tool-less chassis and 1125W PSU are ready for multiple high-end GPUs, making it a highly configurable foundation for expansion. This barebones workstation is best for IT departments and engineers who need to install their own specialized graphics cards for AI model training or complex 3D rendering.

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Great Alternatives

These options also score highly and may better suit your specific needs

HP ZGX Nano G1n

38.6 Compact & SFF Score
NVIDIA GB10128GB RAM4TBNVIDIA Grace Blackwellmini
Why we recommend this

Combining an NVIDIA GB10 Grace Blackwell Superchip with 128GB of unified LPDDR5x memory, this 1.25kg mini workstation delivers 1,000 TOPS of local AI compute. Dual 200G QSFP112 ports allow pairing multiple units for scaled prototyping, while the curated open-source stack streamlines model export and local serving. It is best for AI developers needing a compact, deployment-ready system for fine-tuning and inferencing large models without cloud dependency.

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HP Z6 G5 A Tower

35.8 Compact & SFF Score
AMD Ryzen Threadripper 9975WX32GB RAM1TBworkstation
Why we recommend this

The 32-core AMD Ryzen Threadripper PRO 9975WX and 6400 MHz DDR5 ECC memory provide massive parallel processing power for heavily threaded workloads. It ships without a discrete GPU, positioning it as a customizable foundation for users who need to install multiple high-end graphics cards for AI or rendering. This tower is best for engineers and researchers building a multi-GPU compute node for machine learning or complex 3D simulations.

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