AMD MI455X vs Nvidia RTX 4070

The MI455X is newer, with 36x the memory and 46x the bandwidth.

At a glance

Memory

36x more on MI455X

MI455X: 432 GB

RTX 4070: 12 GB

Memory bandwidth

46x higher on MI455X

MI455X: 23,300 GB/s

RTX 4070: 504 GB/s

Cheapest on-demand

MI455X is not sold on demand

MI455X: --

RTX 4070: $0.11 /GPU/hr

Price comparison

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

Billing	MI455X	RTX 4070
On-demand	No on-demand listings	$0.15 /GPU/hr from $0.11
Reserved	No reserved listings	-- /GPU/hr from $0.14 (3 mo)
Spot	No spot listings	-- /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 RTX 4070: 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

MI455X vs RTX 4070 price history

Weekly median on-demand price per GPU per hour

Last 12 months

Aggregating historical prices...

Specs comparison

Spec	MI455X	RTX 4070	Difference
Memory
Capacity	432 GB HBM4	12 GB GDDR6X	36x more on MI455X
Bandwidth	23,300 GB/s	504 GB/s	46x higher on MI455X
Bus width		192-bit
Compute · dense
FP4	40,265 TFLOPS	Not supported	MI455X only
FP8	20,133 TFLOPS	116.6 TFLOPS	173x higher on MI455X
FP16 / BF16	5,033 TFLOPS	58.3 TFLOPS	86x higher on MI455X
INT8	5,033 TOPS	233.2 TOPS	22x higher on MI455X
FP32	315 TFLOPS	29.1 TFLOPS	11x higher on MI455X
Platform
Interconnect	Infinity Fabric 3,600 GB/s	PCIe only	Infinity Fabric on MI455X only
Released	Q3 2026	Q2 2023	3 years newer on MI455X
Precision
Supported formats	FP4FP6FP8FP16BF16FP32INT8	FP8FP16BF16TF32FP32INT4INT8

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

Source: MI455X datasheet and RTX 4070 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	MI455X	RTX 4070
Azure USA	On request Custom	--
Cirrascale USA	On request Custom	--
Oracle Cloud USA	On request Custom	--
TensorWave USA	On request Custom	--
Vultr USA	On request Custom	--
Vast.ai USA	--	$0.11 /GPU/hr On-demand
Theta EdgeCloud Distributed	--	$0.13 /GPU/hr On-demand
Salad Distributed	--	$0.15 /GPU/hr On-demand