AMD MI350X vs AMD MI455X

Two AMD data center GPUs, one CDNA 4 and one CDNA 5: 288 GB HBM3e against 432 GB HBM4 and 2.9x the memory bandwidth on the MI455X.

At a glance

Memory

MI350X: 288 GB
MI455X: 432 GB

50% more on MI455X

Memory bandwidth

MI350X: 8.00 TB/s
MI455X: 23.30 TB/s

2.9x higher on MI455X

Cheapest on-demand

MI350X: --
MI455X: --

MI350X and MI455X are not sold on demand

Price comparison

Median price per GPU per hour by billing type, with the cheapest listing under it.

Billing	MI350X	MI455X	Difference
Reserved	-- /GPU/hr from $4.76 (12 mo)	No reserved listings
Spot	-- /GPU/hr from $4.00	No spot listings

Heads up: A provider's own page may quote a different figure, for example on tax, region or a promotion. A monthly-only plan shows a derived hourly rate. Medians are across providers, one vote each, so a large catalog does not outweigh a small one. No median for reserved and spot on the MI350X: we only show one when at least 3 providers list the GPU on that billing type. Verify before provisioning. More on how we price.

Price history

MI350X vs MI455X price history

Weekly median on-demand price per GPU per hour

Last 4 weeks

Aggregating historical prices...

Specs comparison

Spec	MI350X	MI455X	Difference
Memory
Capacity	288 GB HBM3e	432 GB HBM4	50% more on MI455X
Bandwidth	8,000 GB/s	23,300 GB/s	2.9x higher on MI455X
Bus width	8,192-bit
Compute · dense
FP4	9,227.5 TFLOPS	40,265 TFLOPS	4.4x higher on MI455X
FP8	4,614 TFLOPS	20,133 TFLOPS	4.4x higher on MI455X
FP16 / BF16	2,309.6 TFLOPS	5,033 TFLOPS	2.2x higher on MI455X
INT8	4,614 TOPS	5,033 TOPS	9% higher on MI455X
FP32	144.2 TFLOPS	315 TFLOPS	2.2x higher on MI455X
FP64	72.1 TFLOPS	Not supported	MI350X only
Platform
Interconnect	Infinity Fabric 1,075 GB/s	Infinity Fabric 3,600 GB/s	3.3x higher on MI455X
Released	Q2 2025	Q3 2026	13 months newer on MI455X
Precision
Supported formats	FP4FP6FP8FP16BF16FP32FP64INT8	FP4FP6FP8FP16BF16FP32INT8

Compute: Vendor peak figures, dense and per GPU. Not measured throughput.

Source: MI350X datasheet and MI455X datasheet.

Where to rent them

Providers that rent these GPUs. No provider we track offers both right now.

Provider	MI350X /GPU/hr	MI455X /GPU/hr
DigitalOcean	Reserved from $4.76	--
Azure	--	Pricing on request
Cirrascale	--	Pricing on request
Oracle Cloud	--	Pricing on request
TensorWave	--	Pricing on request
Vultr	--	Pricing on request