Nvidia logo

A4000 vs RTX PRO 4000

The RTX PRO 4000 offers Blackwell FP4 with 24GB, the A4000 has Ampere with 16GB. Choose RTX PRO 4000 for newer architecture, A4000 for lower cost.

Overview

Nvidia logo Nvidia A4000

The Nvidia A4000 is a workstation GPU on the Ampere architecture, released Q2 2021, with 16 GB GDDR6 and 448 GB/s memory bandwidth.

Mid-Range Workstation

Nvidia logo Nvidia RTX PRO 4000

The Nvidia RTX PRO 4000 is a workstation GPU on the Blackwell architecture, released Q1 2025, with 24 GB GDDR7 and 672 GB/s memory bandwidth.

Mid-Range Workstation

Memory per GPU

1.5x more on RTX PRO 4000
Nvidia logo A4000
16 GB GDDR6
Nvidia logo RTX PRO 4000
24 GB GDDR7

Memory bandwidth

1.5x higher on RTX PRO 4000
Nvidia logo A4000
448 GB/s
Nvidia logo RTX PRO 4000
672 GB/s

GPU interconnect

Nvidia logo A4000
PCIe only
Nvidia logo RTX PRO 4000
PCIe only

Peak performance (FP16)

1.9x higher on RTX PRO 4000
Nvidia logo A4000
76.7 TFLOPS
Nvidia logo RTX PRO 4000
147.3 TFLOPS

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

FP16 per watt

1.9x higher on RTX PRO 4000
Nvidia logo A4000
0.55 TFLOPS/W
Nvidia logo RTX PRO 4000
1.02 TFLOPS/W

Board power

Within 5%
Nvidia logo A4000
140 W
Nvidia logo RTX PRO 4000
145 W

Precision support

Nvidia logo A4000
FP16 BF16 TF32 FP32 INT4 INT8
Nvidia logo RTX PRO 4000
FP4 FP8 FP16 BF16 TF32 FP32 INT8

Highlighted formats are supported by only one of the two.

Architecture

Nvidia logo A4000
Ampere
Nvidia logo RTX PRO 4000
Blackwell

Released

4 years newer on RTX PRO 4000
Nvidia logo A4000
Q2 2021
Nvidia logo RTX PRO 4000
Q1 2025

Price comparison

Cheapest on-demand

3.3x higher on RTX PRO 4000
Nvidia logo A4000
$0.07 /GPU/hr
Nvidia logo RTX PRO 4000
$0.23 /GPU/hr

Typical rate

2.1x higher on RTX PRO 4000
Nvidia logo A4000
$0.21 /GPU/hr
Nvidia logo RTX PRO 4000
$0.45 /GPU/hr

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

Spot floor

2.3x higher on RTX PRO 4000
Nvidia logo A4000
$0.08 /GPU/hr
Nvidia logo RTX PRO 4000
$0.19 /GPU/hr

Providers listing it

9 more on A4000
Nvidia logo A4000
12
Nvidia logo RTX PRO 4000
3

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.

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Our data for Nvidia A4000 was last updated on Sept. 7, 2026, and for Nvidia RTX PRO 4000 on Sept. 7, 2026.