GPU Rent Hub GPUsB200 vs MI300X

B200 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 B200 is 3 890 $US a month and the MI300X is 1 590 $US a month. Everything below is measured, not argued.

Updated 2026-09-01

2 300 $USMonthly price difference

12 GBMemory difference

5,40 $USB200 per GPU-hour

2,21 $USMI300X per GPU-hour

01 Side by side

What is the difference between the B200 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.

	B200	MI300X
Memory	180 GB HBM3e	192 GB HBM3
Memory bandwidth	8 TB/s	5.3 TB/s
Architecture	Blackwell (2024)	CDNA 3 (2023)
Cores	Blackwell dual-die	304 compute units · 19,456 stream processors
FP8	9 PFLOPS (sparse)	2,615 TFLOPS
FP16	2.2 PFLOPS (sparse)	1,307 TFLOPS
Interconnect	NVLink 5 · 1.8 TB/s	Infinity Fabric · 896 GB/s
Board power	1000 W	750 W
Host vCPU	28	24
Host RAM	283 GB	283 GB
Local NVMe	3 TB	2 TB
Weekly price	1 090 $US	450 $US
Monthly price	3 890 $US	1 590 $US
Per GPU-hour	5,40 $US	2,21 $US
Price per GB of VRAM	21,61 $US	8,28 $US
In stock now	8	8

02 Verdict

Which should you rent?

The cheaper MI300X carries 12 GB more memory, so on capacity alone it is the better card. Bandwidth is 8 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 B200 has NVLink, so multi-card training scales on it and struggles on the MI300X. The B200 costs 145% more per month, $3,890 against $1,590, or $5.40 against $2.21 per GPU-hour.

Work out how much VRAM your model actually needs

Rent the B200 when

Training and fine-tuning frontier-scale models. A 405B parameter model in FP8 fits on a single 8-way node with room for a long context window.

3 890 $US/mo · 1 090 $US/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 $US/mo · 450 $US/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	B200	MI300X
DFW-1Dallas, TX	6	8
IAD-1Ashburn, VA	—	—
PDX-1Hillsboro, OR	2	—

Datacenter specifications and latency

04 Questions

B200 against MI300X

Is the B200 better than the MI300X?

For anything memory-bound the B200 wins: 180 GB at 8 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 $3,890 and the job finishes either way.

What is the price difference between the B200 and the MI300X?

At GPU Rent Hub the B200 is $3,890 a month and the MI300X is $1,590, a gap of $2,300. Weekly terms are $1,090 and $450. Both prices are flat and include power, cooling, a public IPv4 and 20 TB of outbound traffic.

How much VRAM does the B200 have compared to the MI300X?

The B200 has 180 GB of HBM3e and the MI300X has 192 GB of HBM3. A 405B parameter model in FP8 fits on a single 8-way node with room for a long context window.

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 8 B200 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 B200 cards in one machine?

Yes. Multi-GPU configurations sit on a single node with NVLink 5 · 1.8 TB/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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