Nvidia A40 vs Nvidia RTX 4000 Ada

The A40 has 2.4x the memory and 93% more bandwidth. The RTX 4000 Ada is newer and typically cheaper.

At a glance

Memory

2.4x more on A40

A40: 48 GB

RTX 4000 Ada: 20 GB

Memory bandwidth

93% higher on A40

A40: 696 GB/s

RTX 4000 Ada: 360 GB/s

Cheapest on-demand

50% cheaper on RTX 4000 Ada

A40: $0.40 /GPU/hr

RTX 4000 Ada: $0.20 /GPU/hr

Price comparison

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

Billing	A40	RTX 4000 Ada	Difference
On-demand	$0.65 /GPU/hr from $0.40	$0.51 /GPU/hr from $0.20	22% cheaper on RTX 4000 Ada
Reserved	-- /GPU/hr from $0.61 (24 mo)	-- /GPU/hr from $0.18 (3 mo)
Spot	-- /GPU/hr from $0.27	-- /GPU/hr from $0.13

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 reserved and spot on the RTX 4000 Ada: 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 4000 Ada price history

Weekly median on-demand price per GPU per hour

Last 12 months

Aggregating historical prices...

Specs comparison

Spec	A40	RTX 4000 Ada	Difference
Memory
Capacity	48 GB GDDR6	20 GB GDDR6	2.4x more on A40
Bandwidth	696 GB/s	360 GB/s	93% higher on A40
Bus width	384-bit	160-bit	2.4x wider on A40
Compute · dense
FP8	Not supported	213.8 TFLOPS	RTX 4000 Ada only
FP16 / BF16	149.7 TFLOPS	106.9 TFLOPS	40% higher on A40
INT8	299.3 TOPS
FP32	37.4 TFLOPS	26.7 TFLOPS	40% higher on A40
Platform
Interconnect	PCIe only	PCIe only
Board power	300 W	130 W	2.3x higher on A40
Released	Q4 2020	Q3 2023	3 years newer on RTX 4000 Ada
Precision
Supported formats	FP16BF16TF32FP32INT4INT8	FP8FP16BF16TF32FP32INT4INT8

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

Source: A40 datasheet and RTX 4000 Ada 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 4000 Ada
Vast.ai USA	$0.40 /GPU/hr On-demand	$0.20 /GPU/hr On-demand
Runpod USA	$0.49 /GPU/hr On-demand	$0.28 /GPU/hr On-demand
Sesterce France	$2.05 /GPU/hr On-demand	$0.87 /GPU/hr On-demand
GPU.ai UAE	$0.40 /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	--
Database Mart USA	$0.61 /GPU/hr Reserved	--
Akamai Cloud USA	--	$0.52 /GPU/hr On-demand
DigitalOcean USA	--	$0.76 /GPU/hr On-demand