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MI355X vs L40S

AMD MI355X vs Nvidia L40S

Two data center GPUs, one CDNA 4 and one Ada Lovelace: 288 GB HBM3e against 48 GB GDDR6, 9.3x the memory bandwidth on the MI355X, and Infinity Fabric 1,075 GB/s on the MI355X where the L40S is PCIe only.

At a glance

Memory

MI355X: 288 GB
L40S: 48 GB

6x more on MI355X

Memory bandwidth

MI355X: 8,000 GB/s
L40S: 864 GB/s

9.3x higher on MI355X

Cheapest on-demand

MI355X: $8.60 /GPU/hr
L40S: $0.55 /GPU/hr

16x more expensive on MI355X

Price comparison

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

Billing	MI355X	L40S
On-demand	-- /GPU/hr from $8.60	$1.60 /GPU/hr from $0.55
Reserved	No reserved listings	$1.11 /GPU/hr from $0.60 (12 mo)
Spot	-- /GPU/hr from $4.50	$1.11 /GPU/hr from $0.74

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

MI355X vs L40S price history

Weekly median on-demand price per GPU per hour

Last 12 months

Aggregating historical prices...

Specs comparison

Spec	MI355X	L40S	Difference
Memory
Capacity	288 GB HBM3e	48 GB GDDR6	6x more on MI355X
Bandwidth	8,000 GB/s	864 GB/s	9.3x higher on MI355X
Bus width	8,192-bit	384-bit	21x wider on MI355X
Compute · dense
FP4	10,066.3 TFLOPS	Not supported	MI355X only
FP8	5,033.2 TFLOPS	733 TFLOPS	6.9x higher on MI355X
FP16 / BF16	2,516.6 TFLOPS	362.1 TFLOPS	7x higher on MI355X
INT8	5,033.2 TOPS	733 TOPS	6.9x higher on MI355X
FP32	157.3 TFLOPS	91.6 TFLOPS	1.7x higher on MI355X
FP64	78.6 TFLOPS	Not supported	MI355X only
Platform
Interconnect	Infinity Fabric 1,075 GB/s	PCIe only	Infinity Fabric on MI355X only
Board power	1,400 W	350 W	4x higher on MI355X
Released	Q2 2025	Q3 2023	2 years newer on MI355X
Precision
Supported formats	FP4FP6FP8FP16BF16FP32FP64INT8	FP8FP16BF16TF32FP32INT4INT8

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

Source: MI355X datasheet and L40S datasheet.

Where to rent them

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

Provider	MI355X /GPU/hr	L40S /GPU/hr
Oracle Cloud	On-Demand $8.60	--
DigitalOcean	Spot $4.50	--
TensorWave	Custom $2.95	--
Vultr	Spot $2.59	--
Novita	--	On-Demand $0.55
GPU.ai	--	On-Demand $0.80
Packet·ai	--	On-Demand $0.92
Sesterce	--	On-Demand $0.97
Massed Compute	--	On-Demand $0.97
Runpod	--	On-Demand $1.09
UpCloud	--	On-Demand $1.19
Koyeb	--	On-Demand $1.20