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MI325X vs MI355X

AMD MI325X vs AMD MI355X

Two AMD data center GPUs, one CDNA 3 and one CDNA 4: 256 GB HBM3e against 288 GB HBM3e and 33% more memory bandwidth on the MI355X.

At a glance

Memory

MI325X: 256 GB
MI355X: 288 GB

1.1x more on MI355X

Memory bandwidth

MI325X: 6.00 TB/s
MI355X: 8.00 TB/s

1.3x higher on MI355X

Cheapest on-demand

MI325X: $2.25 /GPU/hr
MI355X: $8.60 /GPU/hr

3.8x more expensive on MI355X

Price comparison

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

Billing	MI325X	MI355X
On-demand	$3.07 /GPU/hr from $2.25	-- /GPU/hr from $8.60
Reserved	$1.95 /GPU/hr from $1.48 (12 mo)	No reserved listings
Spot	Sold out	-- /GPU/hr from $4.50

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 on-demand and spot on the MI355X: 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

MI325X vs MI355X price history

Weekly median on-demand price per GPU per hour

Last 12 months

Aggregating historical prices...

Specs comparison

Spec	MI325X	MI355X	Difference
Memory
Capacity	256 GB HBM3e	288 GB HBM3e	1.1x more on MI355X
Bandwidth	6,000 GB/s	8,000 GB/s	1.3x higher on MI355X
Bus width	8,192-bit	8,192-bit	Identical
Compute · dense
FP4	Not supported	10,066.3 TFLOPS	MI355X only
FP8	2,614.9 TFLOPS	5,033.2 TFLOPS	1.9x higher on MI355X
FP16 / BF16	1,307.4 TFLOPS	2,516.6 TFLOPS	1.9x higher on MI355X
INT8	2,614.9 TOPS	5,033.2 TOPS	1.9x higher on MI355X
FP32	163.4 TFLOPS	157.3 TFLOPS	Within 5%
FP64	81.7 TFLOPS	78.6 TFLOPS	Within 5%
Platform
Interconnect	Infinity Fabric 896 GB/s	Infinity Fabric 1,075 GB/s	1.2x higher on MI355X
Board power	1,000 W	1,400 W	1.4x higher on MI355X
Released	Q4 2024	Q2 2025	8 months newer on MI355X
Precision
Supported formats	FP8FP16BF16TF32FP32FP64INT8	FP4FP6FP8FP16BF16FP32FP64INT8

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

Source: MI325X datasheet and MI355X datasheet.

Where to rent them

Providers listing these GPUs, those with both first, so you can switch without moving clouds.

Provider	MI325X /GPU/hr	MI355X /GPU/hr
DigitalOcean	On-Demand $3.80	Spot $4.50
TensorWave	Custom $2.25	Custom $2.95
Vultr	Spot $2.00	Spot $2.59
Bentaus	On-Demand $2.25	--
Cyfuture AI	On-Demand $3.02	--
Oracle Cloud	--	On-Demand $8.60