Google Cloud C3D Instances with AMD EPYC Genoa — 30% More Compute Performance

Google Cloud's C3D instances, powered by AMD EPYC 9004 series (Genoa/Zen 4) processors, deliver 30% better compute performance compared to the previous C2D generation (EPYC Milan/Zen 3). C3D instances are available in standard, highcpu and highmem memory ratios. DDR5 memory provides an additional 15-20% improvement for memory-bandwidth-bound workloads.

Pricing: c3d-standard-4 (4 vCPU, 16 GB) is $0.23/hr on-demand — a 5% premium over c2d-standard-4 ($0.22/hr) but with 30% better performance. Google's Sustained Use Discounts apply automatically after 25% of the month — bringing effective always-on pricing to approximately $0.161/hr for c3d-standard-4 without any commitment.

Cross-cloud comparison for 4 vCPU compute: GCP c3d-standard-4 at SUD rate = $117/month. AWS c7i.xlarge (Intel Sapphire Rapids) = $214/month. Azure F4s v2 = $153/month. OCI Opt3.Flex 2 OCPU = $67/month. GCP wins this comparison when SUD applies automatically.

TCOIQ Action: Migrate from C2D to C3D for an effective free 30% performance upgrade — 5% higher on-demand rate is offset by 30% throughput gain. For always-on workloads, combine with 1-year CUD (40% off) or 3-year CUD (55% off) for maximum savings. C3D is the best GCP option for compute-intensive Linux workloads in 2025.