AMD MI355X vs AMD Radeon RX 7900 XTX

The MI355X is newer, with 12x the memory and 8.3x the bandwidth. The Radeon RX 7900 XTX is cheaper right now.

At a glance

Memory

12x more on MI355X

MI355X: 288 GB

Radeon RX 7900 XTX: 24 GB

Memory bandwidth

8.3x higher on MI355X

MI355X: 8,000 GB/s

Radeon RX 7900 XTX: 960 GB/s

Cheapest on-demand

97% cheaper on Radeon RX 7900 XTX

MI355X: $5.99 /GPU/hr

Radeon RX 7900 XTX: $0.17 /GPU/hr

Price comparison

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

Billing	MI355X	Radeon RX 7900 XTX
On-demand	$8.04 /GPU/hr from $5.99	-- /GPU/hr from $0.17
Reserved	-- /GPU/hr from $4.29	No reserved listings
Spot	-- /GPU/hr from $3.44	-- /GPU/hr from $0.07

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 MI355X and on-demand and spot on the Radeon RX 7900 XTX: 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 Radeon RX 7900 XTX price history

Weekly median on-demand price per GPU per hour

Last 12 months

Aggregating historical prices...

Specs comparison

Spec	MI355X	Radeon RX 7900 XTX	Difference
Memory
Capacity	288 GB HBM3e	24 GB GDDR6	12x more on MI355X
Bandwidth	8,000 GB/s	960 GB/s	8.3x 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	Not supported	MI355X only
FP16 / BF16	2,516.6 TFLOPS	123 TFLOPS	20x higher on MI355X
INT8	5,033.2 TOPS	123 TOPS	41x higher on MI355X
FP32	157.3 TFLOPS	61.4 TFLOPS	2.6x 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	355 W	3.9x higher on MI355X
Released	Q2 2025	Q4 2022	2 years newer on MI355X
Precision
Supported formats	FP4FP6FP8FP16BF16FP32FP64INT8	FP16BF16FP32INT4INT8

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

Source: MI355X datasheet and Radeon RX 7900 XTX datasheet.

Where to rent them

Providers that rent these GPUs, with each one's cheapest rate. No provider we track offers both right now.

Provider	MI355X	Radeon RX 7900 XTX
Daytona USA	$5.99 /GPU/hr On-demand	--
OpenRelay USA	$6.30 /GPU/hr On-demand	--
Oracle Cloud USA	$8.60 /GPU/hr On-demand	--
Cirrascale USA	$4.29 /GPU/hr Reserved	--
Impossible Cloud Germany	$6.13 /GPU/hr Reserved	--
DigitalOcean USA	$4.50 /GPU/hr Spot	--
TensorWave USA	$2.95 /GPU/hr Custom OAM	--
Crusoe USA	On request Custom	--
Salad Distributed	--	$0.17 /GPU/hr On-demand