GPU Rent Hub GPUsH100 SXM vs MI300X

H100 SXM vs MI300X: specs, price and which to rent

GPU Rent Hub rents both cards as dedicated bare metal in three United States datacenters, paid in Bitcoin, Ethereum, USDT, USDC, Monero, Solana or Litecoin with no identity verification. The H100 SXM is $1,690 a month and the MI300X is $1,590 a month. Everything below is measured, not argued.

Updated 2026-09-01

$100Monthly price difference

112 GBMemory difference

$2.35H100 SXM per GPU-hour

$2.21MI300X per GPU-hour

01 Side by side

What is the difference between the H100 SXM and the MI300X?

Every figure is the one we rent against, taken from the same catalogue the dashboard prices from. Per-GPU-hour is the flat monthly price divided by 720 hours; you are never billed by the hour.

	H100 SXM	MI300X
Memory	80 GB HBM3	192 GB HBM3
Memory bandwidth	3.35 TB/s	5.3 TB/s
Architecture	Hopper (2022)	CDNA 3 (2023)
Cores	16,896 CUDA · 528 Tensor	304 compute units · 19,456 stream processors
FP8	3,958 TFLOPS (sparse)	2,615 TFLOPS
FP16	1,979 TFLOPS (sparse)	1,307 TFLOPS
Interconnect	NVLink · 900 GB/s	Infinity Fabric · 896 GB/s
Board power	700 W	750 W
Host vCPU	20	24
Host RAM	251 GB	283 GB
Local NVMe	2 TB	2 TB
Weekly price	$475	$450
Monthly price	$1,690	$1,590
Per GPU-hour	$2.35	$2.21
Price per GB of VRAM	$21.12	$8.28
In stock now	63	8

02 Verdict

Which should you rent?

The cheaper MI300X carries 112 GB more memory, so on capacity alone it is the better card. Bandwidth is 3.35 TB/s against 5.3 TB/s, and for single-stream token generation it is bandwidth that sets the speed, not the FLOPS figure on the spec sheet. Only the H100 SXM has NVLink, so multi-card training scales on it and struggles on the MI300X. The H100 SXM costs 6% more per month, $1,690 against $1,590, or $2.35 against $2.21 per GPU-hour.

Work out how much VRAM your model actually needs

Rent the H100 SXM when

Multi-week training and fine-tuning runs. A 70B model in FP8 fits on one card; in BF16 it needs two.

$1,690/mo · $475/wk · specifications and stock

Rent the MI300X when

Serving very large models on the fewest cards. The most HBM per card we rent: a 70B model in BF16 fits with 50 GB to spare.

$1,590/mo · $450/wk · specifications and stock

03 Availability

Where each card is in stock

A dash means the card is on the waitlist in that region. The price is identical in all three, so choose on latency and stock, nothing else.

Region	H100 SXM	MI300X
DFW-1Dallas, TX	32	8
IAD-1Ashburn, VA	19	—
PDX-1Hillsboro, OR	12	—

Datacenter specifications and latency

04 Questions

H100 SXM against MI300X

Is the H100 SXM better than the MI300X?

For anything memory-bound the H100 SXM wins: 80 GB at 3.35 TB/s against 192 GB at 5.3 TB/s. For work that already fits in 192 GB the MI300X is the better buy, because it costs $1,590 a month against $1,690 and the job finishes either way.

What is the price difference between the H100 SXM and the MI300X?

At GPU Rent Hub the H100 SXM is $1,690 a month and the MI300X is $1,590, a gap of $100. Weekly terms are $475 and $450. Both prices are flat and include power, cooling, a public IPv4 and 20 TB of outbound traffic.

How much VRAM does the H100 SXM have compared to the MI300X?

The H100 SXM has 80 GB of HBM3 and the MI300X has 192 GB of HBM3. A 70B model in FP8 fits on one card; in BF16 it needs two.

Can I rent either card without KYC?

Yes. Both are rented on the same terms: an account is a username and a password, payment is Bitcoin, Ethereum, USDT, USDC, Monero, Solana or Litecoin, and no identity document is requested or stored at any point.

Which one is available today?

Stock moves. As of 2026-09-01 there were 63 H100 SXM and 8 MI300X cards free across DFW-1, IAD-1 and PDX-1. The per-region table above comes from the same inventory the dashboard deploys against.

Can I put several H100 SXM cards in one machine?

Yes. Multi-GPU configurations sit on a single node with NVLink · 900 GB/s between the cards, and ordering two, four or eight takes 5%, 8% or 10% off the per-card price.

Rent either one by the week or the month

No identity check, no email address, no card. Fund a balance in any of seven coins and deploy in about ninety seconds.

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