Nvidia A40 vs Nvidia RTX PRO 4000

The A40 has 2x the memory, with about the same bandwidth.

At a glance

Memory

2x more on A40

A40: 48 GB

RTX PRO 4000: 24 GB

Memory bandwidth

Within 5%

A40: 696 GB/s

RTX PRO 4000: 672 GB/s

Cheapest on-demand

Within 5%

A40: $0.59 /GPU/hr

RTX PRO 4000: $0.57 /GPU/hr

Price comparison

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

Billing	A40	RTX PRO 4000	Difference
On-demand	$0.85 /GPU/hr from $0.59	-- /GPU/hr from $0.57
Reserved	-- /GPU/hr from $0.61 (24 mo)	-- /GPU/hr from $0.26 (24 mo)

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 on the A40 and on-demand and reserved on the RTX PRO 4000: 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

A40 vs RTX PRO 4000 price history

Weekly median on-demand price per GPU per hour

Last 12 months

Aggregating historical prices...

Specs comparison

Spec	A40	RTX PRO 4000	Difference
Memory
Capacity	48 GB GDDR6	24 GB GDDR7	2x more on A40
Bandwidth	696 GB/s	672 GB/s	Within 5%
Bus width	384-bit	192-bit	2x wider on A40
Compute · dense
FP4	Not supported	589 TFLOPS	RTX PRO 4000 only
FP8	Not supported	294.5 TFLOPS	RTX PRO 4000 only
FP16 / BF16	149.7 TFLOPS	147.3 TFLOPS	Within 5%
INT8	299.3 TOPS	294.5 TOPS	Within 5%
FP32	37.4 TFLOPS	37 TFLOPS	Within 5%
Platform
Interconnect	PCIe only	PCIe only
Board power	300 W	145 W	2.1x higher on A40
Released	Q4 2020	Q1 2025	4 years newer on RTX PRO 4000
Precision
Supported formats	FP16BF16TF32FP32INT4INT8	FP4FP8FP16BF16TF32FP32INT8

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

Source: A40 datasheet and RTX PRO 4000 datasheet.

Where to rent them

Providers that rent these GPUs, with each one's cheapest rate. Providers that rent both are listed first.

Provider	A40	RTX PRO 4000
Runpod USA	$0.59 /GPU/hr On-demand	$0.57 /GPU/hr On-demand
Database Mart USA	$0.61 /GPU/hr Reserved	$0.26 /GPU/hr Reserved
GPU.ai UAE	$0.59 /GPU/hr On-demand	--
Sesterce France	$2.05 /GPU/hr On-demand	--
Runcrate USA	$2.42 /GPU/hr On-demand PCIe	--
Denvr Canada	$0.65 /GPU/hr On-demand	--
Exoscale Switzerland	$1.05 /GPU/hr On-demand	--
EmpirioLabs AI USA	$1.49 /GPU/hr On-demand	--