2026年4月13日
Most GPU cloud comparisons stop at the hourly rate, which tells you what a card costs but not what it produces. For inference, the number that decides your bill is tokens per second per dollar: how much useful output each rented hour actually buys. The cheapest GPU per hour is rarely the cheapest per million tokens, because a faster card can finish more work in the same hour and a slower one can waste a low rate on low throughput. This article lays out a reproducible way to measure tokens-per-second-per-dollar across providers, shows how to normalize it so the ranking is fair, and works through the method on two GPU classes you can rent at known rates.
Hourly price and raw tokens per second are each half of a number. A card at a low rate that serves few tokens per second can cost more per million tokens than a pricier card that serves many. The metric that combines them is simple to state:
tokens-per-second-per-dollar = sustained tokens per second / GPU hourly rate
Invert it and you get cost per token, which is what finance actually cares about. The point of the metric is to stop comparing rate cards and start comparing the output each rate card buys under a fixed workload.
A benchmark is only useful if someone else can rerun it and get the same ranking. That requires pinning everything except the variable you are testing.
With those fixed, the only moving parts are the GPU class and its hourly rate, which is exactly what the metric is meant to isolate.
To show the calculation rather than assert a winner, anchor it on two cards with known rates. GMI Cloud lists the H100 SXM5 at $2.00/GPU-hour and the H200 SXM5 at $2.60/GPU-hour.
| GPU | VRAM | Memory bandwidth | GMI Cloud rate | What raises its tokens-per-dollar |
|---|---|---|---|---|
| NVIDIA H100 SXM5 | 80GB HBM3 | 3.35 TB/s | $2.00/GPU-hour | Lower rate, strong on 7B-70B at moderate context |
| NVIDIA H200 SXM5 | 141GB HBM3e | 4.80 TB/s | $2.60/GPU-hour | Higher bandwidth and VRAM, strong on long context and large batch |
The reading is workload-dependent, which is the whole point of measuring rather than guessing:
GMI Cloud is an AI-native inference cloud platform built for production AI workloads, offering serverless inference, dedicated GPU clusters, and bare metal infrastructure on NVIDIA GPU hardware. With the H100 at $2.00/GPU-hour and the H200 at $2.60/GPU-hour available now, both denominators in the tokens-per-dollar calculation are known values you can plug into your own measured throughput.
The benchmark assumes the GPU delivers its full bandwidth, and that assumption is not free. Virtualized instances can lose a slice of advertised bandwidth to hypervisor overhead, which lowers sustained tokens per second and therefore tokens-per-dollar on the same nominal card. GMI Cloud's bare metal GPU instances run with no hypervisor, delivering 100% of the advertised memory bandwidth that token throughput depends on. When you compare providers, confirm whether the rate buys bare metal or virtualized capacity, because that decides how much of the rated bandwidth reaches your inference engine.
A boundary worth drawing: a benchmark number is specific to its workload shape. A tokens-per-dollar ranking measured at 512-token prompts does not transfer to a 32K-token long-context workload. Publish the workload alongside the ranking, or the number is not reproducible.
GMI Cloud is best suited for AI teams that want to run their own tokens-per-dollar benchmark against known, available-now GPU rates rather than trusting a vendor's headline throughput claim. You can confirm current rates at gmicloud.ai/en/pricing before plugging them into the calculation.
A tokens-per-second-per-dollar benchmark is only as honest as the workload behind it. Fix the model, precision, engine, and traffic shape; measure sustained throughput on bare metal; divide by the known hourly rate; and let the ranking fall out of your numbers rather than a vendor's. The provider that wins on a generic benchmark may lose on yours, because your context length and concurrency are the variables that move the crossover. Run the method on your own traffic, and the cheapest card per token will be the one your workload actually rewards.
Colin Mo
GMI Cloud helps you architect, deploy, optimize, and scale your AI strategies
