AMD MI455X vs Nvidia RTX PRO 4500

The MI455X is newer, with 14x the memory and 26x the bandwidth.

At a glance

Memory

14x more on MI455X

MI455X: 432 GB

RTX PRO 4500: 32 GB

Memory bandwidth

26x higher on MI455X

MI455X: 23,300 GB/s

RTX PRO 4500: 896 GB/s

Cheapest on-demand

MI455X is not sold on demand

MI455X: --

RTX PRO 4500: $0.72 /GPU/hr

Price comparison

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

Billing	MI455X	RTX PRO 4500	Difference
On-demand	No on-demand listings	$0.92 /GPU/hr from $0.72
Reserved	No reserved listings	On request

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. Verify before provisioning. More on how we price.

Price history

MI455X vs RTX PRO 4500 price history

Weekly median on-demand price per GPU per hour

Last 7 months

Aggregating historical prices...

Specs comparison

Spec	MI455X	RTX PRO 4500	Difference
Memory
Capacity	432 GB HBM4	32 GB GDDR7	14x more on MI455X
Bandwidth	23,300 GB/s	896 GB/s	26x higher on MI455X
Bus width		256-bit
Compute · dense
FP4	40,265 TFLOPS	808.5 TFLOPS	50x higher on MI455X
FP8	20,133 TFLOPS	404.3 TFLOPS	50x higher on MI455X
FP16 / BF16	5,033 TFLOPS	202.1 TFLOPS	25x higher on MI455X
INT8	5,033 TOPS	404.3 TOPS	12x higher on MI455X
FP32	315 TFLOPS	51 TFLOPS	6.2x higher on MI455X
Platform
Interconnect	Infinity Fabric 3,600 GB/s	PCIe only	Infinity Fabric on MI455X only
Released	Q3 2026	Q1 2025	16 months newer on MI455X
Precision
Supported formats	FP4FP6FP8FP16BF16FP32INT8	FP4FP8FP16BF16TF32FP32INT8

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

Source: MI455X datasheet and RTX PRO 4500 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 PRO 4500
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	--
GPU.ai UAE	--	$0.72 /GPU/hr On-demand
Runpod USA	--	$0.72 /GPU/hr On-demand
Massed Compute USA	--	$0.92 /GPU/hr On-demand
EmpirioLabs AI USA	--	$1.40 /GPU/hr On-demand
AWS USA	--	$2.52 /GPU/hr On-demand