So we don't use anything like GB scores, but I can give you a general summary between them.
Our Standard VPS product line built on OpenVZ is the work horse. It's got a good mix between CPU, Ram and Disk and has your typical mid-range server grade processors. Slightly lower Mhz per core but a higher core density.
Our Cloud product line has a similar performance curve to our VPS line, slightly beefier CPU's, but there are three main differences. Cloud is KVM based, giving you your own kernel per virtual server, it runs on a distributed storage architecture, (Storpool) so it does have slightly better performance on the underlying storage, but having distributed storage also adds a high level of redundancy. With Cloud, since the data is separate from the compute node, in the event of a full compute node HW disaster, recovery time is drastically reduced as well.
Finally the HF NVMe is pretty much just that, extremely fast single core performance CPU's coupled with local storage NVMe drives using OpenVZ for the lowest possible performance overhead, giving you as close to bare metal performance as one can get.
So in closing, the VPS/Cloud product line will perform very similar to each other, but have various benefits depending on your needs, and the HF NVMe package line will offer higher performance than either of those. The NVMe also has slightly less per package simply because of how expensive the equipment is vs how few customers can be placed on each machine comfortably.
Hope this helps ya out a bit!
Any more questions thou, do let me know.