AMD MI350X vs Nvidia K620

The MI350X is newer, with 144x the memory and 276x the bandwidth.

At a glance

Memory

144x more on MI350X

MI350X: 288 GB

K620: 2 GB

Memory bandwidth

276x higher on MI350X

MI350X: 8,000 GB/s

K620: 29 GB/s

Cheapest on-demand

MI350X is not sold on demand

MI350X: --

K620: --

Price comparison

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

Billing	MI350X	K620	Difference
Reserved	-- /GPU/hr from $4.76 (12 mo)	No reserved listings
Spot	-- /GPU/hr from $2.46	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 K620 price history

Weekly median on-demand price per GPU per hour

Last 17 months

Aggregating historical prices...

Specs comparison

Spec	MI350X	K620	Difference
Memory
Capacity	288 GB HBM3e	2 GB DDR3	144x more on MI350X
Bandwidth	8,000 GB/s	29 GB/s	276x higher on MI350X
Bus width	8,192-bit	128-bit	64x wider on MI350X
Compute · dense
FP4	9,227.5 TFLOPS	Not supported	MI350X only
FP8	4,614 TFLOPS	Not supported	MI350X only
FP16 / BF16	2,309.6 TFLOPS	Not supported	MI350X only
INT8	4,614 TOPS	Not supported	MI350X only
FP32	144.2 TFLOPS	0.9 TFLOPS	168x higher on MI350X
FP64	72.1 TFLOPS	Not supported	MI350X only
Platform
Interconnect	Infinity Fabric 1,075 GB/s	PCIe only	Infinity Fabric on MI350X only
Board power	1,000 W	45 W	22x higher on MI350X
Released	Q2 2025	Q3 2014	11 years newer on MI350X
Precision
Supported formats	FP4FP6FP8FP16BF16FP32FP64INT8	FP32