Nvidia A40 vs Nvidia A4000

The A40 has 3x the memory and 55% more bandwidth. The A4000 is typically cheaper.

At a glance

Memory

3x more on A40

A40: 48 GB

A4000: 16 GB

Memory bandwidth

55% higher on A40

A40: 696 GB/s

A4000: 448 GB/s

Cheapest on-demand

84% cheaper on A4000

A40: $0.49 /GPU/hr

A4000: $0.08 /GPU/hr

Price comparison

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

Billing	A40	A4000	Difference
On-demand	$0.75 /GPU/hr from $0.49	$0.23 /GPU/hr from $0.08	69% cheaper on A4000
Reserved	-- /GPU/hr from $0.61 (24 mo)	$0.18 /GPU/hr from $0.07 (24 mo)
Spot	-- /GPU/hr from $0.31	-- /GPU/hr from $0.06

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 A40 and spot on the A4000: 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 A4000 price history

Weekly median on-demand price per GPU per hour

Last 12 months

Aggregating historical prices...

Specs comparison

Spec	A40	A4000	Difference
Memory
Capacity	48 GB GDDR6	16 GB GDDR6	3x more on A40
Bandwidth	696 GB/s	448 GB/s	55% higher on A40
Bus width	384-bit	256-bit	50% wider on A40
Compute · dense
FP16 / BF16	149.7 TFLOPS	76.7 TFLOPS	95% higher on A40
INT8	299.3 TOPS
FP32	37.4 TFLOPS	19.2 TFLOPS	95% higher on A40
Platform
Interconnect	PCIe only	PCIe only
Board power	300 W	140 W	2.1x higher on A40
Released	Q4 2020	Q2 2021	6 months newer on A4000
Precision
Supported formats	FP16BF16TF32FP32INT4INT8	FP16BF16TF32FP32INT4INT8

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

Source: A40 datasheet and A4000 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	A4000
GPU.ai UAE	$0.49 /GPU/hr On-demand	$0.08 /GPU/hr On-demand
Runpod USA	$0.49 /GPU/hr On-demand	$0.25 /GPU/hr On-demand
Vast.ai USA	$1.00 /GPU/hr On-demand	$0.08 /GPU/hr On-demand
Sesterce France	$1.21 /GPU/hr On-demand	$0.88 /GPU/hr On-demand
Exoscale Switzerland	$1.05 /GPU/hr On-demand	--
Database Mart USA	$0.61 /GPU/hr Reserved	--
Utho India	$0.64 /GPU/hr Reserved	--
EmpirioLabs AI USA	$1.49 /GPU/hr On-demand	--
Runcrate USA	--	$0.88 /GPU/hr On-demand PCIe
Hyperstack UK	--	$0.15 /GPU/hr On-demand
TensorDock Distributed	--	$0.21 /GPU/hr On-demand
Paperspace USA	--	$0.76 /GPU/hr On-demand