Nvidia A100 vs Nvidia A40

The A100 has 67% more memory and 2.8x the bandwidth. The A40 is typically cheaper.

At a glance

Memory

67% more on A100

A100: 80 GB

A40: 48 GB

Memory bandwidth

2.8x higher on A100

A100: 1,935 GB/s

A40: 696 GB/s

Cheapest on-demand

30% cheaper on A40

A100: $0.48 /GPU/hr

A40: $0.34 /GPU/hr

Price comparison

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

Billing	A100	A40	Difference
On-demand	$1.88 /GPU/hr from $0.48	$0.76 /GPU/hr from $0.34	60% cheaper on A40
Reserved	$1.63 /GPU/hr from $0.57 (3 mo)	-- /GPU/hr from $0.61 (24 mo)
Spot	$1.19 /GPU/hr from $0.23	-- /GPU/hr from $0.31

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: 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

A100 vs A40 price history

Weekly median on-demand price per GPU per hour

Last 12 months

Aggregating historical prices...

Specs comparison

Spec	A100	A40	Difference
Memory
Capacity	80 GB HBM2e 40 GB on SXM, PCIe	48 GB GDDR6	67% more on A100
Bandwidth	1,935 GB/s 2,039 GB/s on SXM 1,555 GB/s on SXM, PCIe	696 GB/s	2.8x higher on A100
Bus width	5,120-bit	384-bit	13x wider on A100
Compute · dense
FP16 / BF16	312 TFLOPS	149.7 TFLOPS	2.1x higher on A100
INT8	624 TOPS	299.3 TOPS	2.1x higher on A100
FP32	19.5 TFLOPS	37.4 TFLOPS	92% higher on A40
FP64	9.7 TFLOPS	Not supported	A100 only
Platform
Interconnect	NVLink 600 GB/s	PCIe only	NVLink on A100 only
Board power	300 W	300 W	Identical
Released	Q2 2020	Q4 2020
Precision
Supported formats	FP16BF16TF32FP32FP64INT4INT8	FP16BF16TF32FP32INT4INT8

Figures are for each model's headline configuration. Where a form factor carries a different number, it is named under the figure.

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

Source: A100 datasheet and A40 datasheet.

Where to rent them

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

Provider	A100	A40
Vast.ai USA	$0.48 /GPU/hr On-demand SXM	$0.34 /GPU/hr On-demand
GPU.ai UAE	$0.67 /GPU/hr On-demand	$0.49 /GPU/hr On-demand
Runpod USA	$1.19 /GPU/hr On-demand PCIe	$0.49 /GPU/hr On-demand
Sesterce France	$1.49 /GPU/hr On-demand	$1.21 /GPU/hr On-demand
Thunder Compute USA	$1.09 /GPU/hr On-demand	--
Massed Compute USA	$1.35 /GPU/hr On-demand	--
Packet·ai USA	$1.43 /GPU/hr On-demand	--
Geodd USA	$1.49 /GPU/hr On-demand SXM	--
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