SS-4G or HA-4G? Cores versus memory

These two tiers cost nearly the same and both carry 4 GB RAM and 80 GB NVMe — the difference is core count:

• HA-4G — £13/month — 2 vCPU
• SS-4G — £15/month — 4 vCPU

For £2 more the SS-4G doubles your cores. Pick based on whether your workload is parallel or memory-led.

Choose the SS-4G when work is compute-bound and can spread across cores: build/CI runners, media transcoding, image processing, batch jobs, or a service handling many cheap concurrent requests. More cores mean more of that work runs at once instead of queuing.

Choose the HA-4G when the job is largely single-threaded or memory-led — a typical website plus database, where two cores are rarely the limit and the money is better kept for a memory upgrade later.

Rule of thumb: watch your load. If CPU is pinned across all cores while memory sits half-used, you want the SS-4G. If a core or two is idle but RAM is tight, stay on the HA line and consider stepping up in memory. Both give you fully dedicated KVM cores, so you actually get the parallelism you pay for.