Head to head

V100 vs RTX 3090

V100 and RTX 3090 side by side: published specs, and what each one actually rents for per GPU-hour on the clouds this index tracks.

Prices last collected 2026-10-26 07:30 UTC.

Quick verdict

RTX 3090 is currently about $0.0741 per GPU-hour cheaper than V100 — roughly 46% less.

Specifications side by side

Published specifications for V100 and RTX 3090 (vendor data)
Attribute V100 RTX 3090
Memory 16 GB 24 GB
Architecture Volta Ampere
Memory bandwidth 900 GB/s 936 GB/s
Dense FP16 throughput 112 TFLOPS* 71 TFLOPS*

Vendor-published figures, with sparsity where the vendor states it. Always confirm on the official datasheet before sizing a cluster.

What actually differs

  • More memory per card: RTX 3090 at 24 GB against 16 GB.
  • Higher memory bandwidth: RTX 3090 at 936 GB/s.
  • V100 is Volta-generation silicon, RTX 3090 is Ampere.
  • Cheaper on the price table today: RTX 3090 from $0.0881 per GPU-hour.

More head-to-head comparisons

RTX 3090 vs RTX 4090

Frequently asked questions

Everything about renting cloud GPUs, affiliate tracking and how we collect pricing data.

How is the cheaper provider decided?

For every GPU model both providers list, we compare the normalised single-GPU hourly price. The average of those unit prices is shown for each side, and the lower one is labelled cheaper. We deliberately exclude models only one of the two offers, because that is not a like-for-like comparison.

Does the cheaper option always make sense?

Not always. Marketplace capacity can be reclaimed at short notice and its hosts vary in network and disk performance, while a dedicated cloud gives more predictable throughput. For multi-node training, interconnect and NVLink support usually matter more than a few cents per hour.

Are spot prices directly comparable between providers?

Only roughly. Each platform defines interruption rules, notice periods and reclaim behaviour differently. Treat spot prices as an indication of the cheapest achievable rate, not as a guaranteed price.

Why do you show per-hour rather than per-month prices?

Most providers bill by the second or the hour, and per-hour figures are the only ones that can be compared without guessing how many hours you will actually run. Use the GPU cost estimator to convert an hourly rate into a monthly budget.

Volume buyers

B2B bulk GPU enquiry

Reserving large amounts of GPU capacity? Tell us what you need and we will forward your request to the right provider team.

  • Forwarded by email only — nothing is stored on this site
  • Typical first reply from a provider team: 1–2 business days
  • Useful for reserved clusters, multi-month commitments and data-residency requirements

Submitting this form sends an email to our inbox. It is not written to any database.