AMD MI355X vs Nvidia GTX 1660

The MI355X is newer, with 48x the memory and 42x the bandwidth. The GTX 1660 is cheaper right now.

At a glance

Memory

48x more on MI355X

MI355X: 288 GB

GTX 1660: 6 GB

Memory bandwidth

42x higher on MI355X

MI355X: 8,000 GB/s

GTX 1660: 192 GB/s

Cheapest on-demand

99% cheaper on GTX 1660

MI355X: $5.99 /GPU/hr

GTX 1660: $0.04 /GPU/hr

Price comparison

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

Billing	MI355X	GTX 1660
On-demand	-- /GPU/hr from $5.99	-- /GPU/hr from $0.04
Reserved	No reserved listings	-- /GPU/hr from $0.19 (24 mo)
Spot	-- /GPU/hr from $2.97	-- /GPU/hr from $0.02

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 and on-demand, reserved and spot on the GTX 1660: 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 GTX 1660 price history

Weekly median on-demand price per GPU per hour

Last 12 months

Aggregating historical prices...

Specs comparison

Spec	MI355X	GTX 1660	Difference
Memory
Capacity	288 GB HBM3e	6 GB GDDR5	48x more on MI355X
Bandwidth	8,000 GB/s	192 GB/s	42x higher on MI355X
Bus width	8,192-bit	192-bit	43x 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	10.1 TFLOPS	250x higher on MI355X
INT8	5,033.2 TOPS	Not supported	MI355X only
FP32	157.3 TFLOPS	5.0 TFLOPS	31x 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	120 W	12x higher on MI355X
Released	Q2 2025	Q1 2019	6 years newer on MI355X
Precision
Supported formats	FP4FP6FP8FP16BF16FP32FP64INT8	FP16FP32

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

Source: MI355X datasheet and GTX 1660 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	GTX 1660
Daytona USA	$5.99 /GPU/hr On-demand	--
Oracle Cloud USA	$8.60 /GPU/hr On-demand	--
DigitalOcean USA	$2.97 /GPU/hr Spot	--
TensorWave USA	$2.95 /GPU/hr Custom OAM	--
Crusoe USA	On request Custom	--
Vultr USA	$2.59 /GPU/hr Spot	--
Salad Distributed	--	$0.0400 /GPU/hr On-demand
Vast.ai USA	--	$0.68 /GPU/hr On-demand
Database Mart USA	--	$0.19 /GPU/hr Reserved