Overview

AMD logo AMD MI355X

The AMD MI355X is a data center GPU on the CDNA 4 architecture, released Q2 2025, with 288 GB HBM3e and 8,000 GB/s memory bandwidth.

High Performance Datacenter

Nvidia logo Nvidia A4500

The Nvidia A4500 is a workstation GPU on the Ampere architecture, released Q4 2021, with 20 GB GDDR6 and 640 GB/s memory bandwidth.

Mid-Range Workstation

Memory per GPU

14x more on MI355X
AMD logo MI355X
288 GB HBM3e
Nvidia logo A4500
20 GB GDDR6

Memory bandwidth

12x higher on MI355X
AMD logo MI355X
8,000 GB/s
Nvidia logo A4500
640 GB/s

GPU interconnect

AMD logo MI355X
Infinity Fabric 1,075 GB/s
Nvidia logo A4500
PCIe only

Peak performance (FP16)

27x higher on MI355X
AMD logo MI355X
2,516.6 TFLOPS
Nvidia logo A4500
94.6 TFLOPS

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

FP16 per watt

3.8x higher on MI355X
AMD logo MI355X
1.80 TFLOPS/W
Nvidia logo A4500
0.47 TFLOPS/W

Board power

7x higher on MI355X
AMD logo MI355X
1,400 W
Nvidia logo A4500
200 W

Precision support

AMD logo MI355X
FP4 FP6 FP8 FP16 BF16 FP32 FP64 INT8
Nvidia logo A4500
FP16 BF16 TF32 FP32 INT4 INT8

Highlighted formats are supported by only one of the two.

Architecture

AMD logo MI355X
CDNA 4
Nvidia logo A4500
Ampere

Released

4 years newer on MI355X
AMD logo MI355X
Q2 2025
Nvidia logo A4500
Q4 2021

Price comparison

Cheapest on-demand

45x higher on MI355X
AMD logo MI355X
$8.60 /GPU/hr
Nvidia logo A4500
$0.19 /GPU/hr

Typical rate

39x higher on MI355X
AMD logo MI355X
$8.60 /GPU/hr
Nvidia logo A4500
$0.22 /GPU/hr

Median across providers, one vote each, so a large catalog does not outweigh a small one.

Spot floor

AMD logo MI355X
$4.50 /GPU/hr
Nvidia logo A4500
No spot listings

Providers listing it

2 more on MI355X
AMD logo MI355X
4
Nvidia logo A4500
2

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. Verify before provisioning. More on how we price.

Offers and availability

How this list works

Order

Each provider appears once per GPU. We pick the one configuration that speaks for that provider, and rank on it in this order:

  1. Availability: in stock, then waitlist, then not reported, then out of stock. A price you can act on outranks a cheaper one you cannot.
  2. Billing type: on-demand first, then reserved, then spot, then quote-only. On-demand leads because it is the only rate you can hold without committing to anything.
  3. Price: the lowest per-GPU hourly rate the provider lists, converted to USD.

The configuration we pick is chosen the same way, availability before billing before price. The rest of that provider's configurations are on the GPU's own page.

Ties sort alphabetically. Reserved rates are not separated by term length, so a three-year commitment can sit above a one-month one: the label beneath each price says which you are looking at. Providers who publish no rate are listed last within their group.

Transparency and funding

  • Ads and sponsors: Paid placements sit at the top of the list and are always labeled as sponsored content. Sponsorship never influences the organic ranking itself.
  • Affiliates: Affiliate links are marked. We may earn a commission if you click them, but commissions never affect the order.
  • Prices: Shown in USD, converted at daily reference rates where a provider publishes in another currency. A month means 720 hours. How we estimate costs.

Similar GPUs

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Our data for AMD MI355X was last updated on Sept. 7, 2026, and for Nvidia A4500 on Sept. 7, 2026.