Nvidia A40 vs Nvidia K620

The A40 is newer, with 24x the memory and 24x the bandwidth.

At a glance

Memory

24x more on A40

A40: 48 GB

K620: 2 GB

Memory bandwidth

24x higher on A40

A40: 696 GB/s

K620: 29 GB/s

Cheapest on-demand

A40: $0.28 /GPU/hr

K620: --

Price comparison

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

Billing	A40	K620
On-demand	$0.65 /GPU/hr from $0.28	No on-demand listings
Reserved	-- /GPU/hr from $0.61 (24 mo)	No reserved listings
Spot	-- /GPU/hr from $0.27	No spot listings

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

A40 vs K620 price history

Weekly median on-demand price per GPU per hour

Last 17 months

Aggregating historical prices...

Specs comparison

Spec	A40	K620	Difference
Memory
Capacity	48 GB GDDR6	2 GB DDR3	24x more on A40
Bandwidth	696 GB/s	29 GB/s	24x higher on A40
Bus width	384-bit	128-bit	3x wider on A40
Compute · dense
FP16 / BF16	149.7 TFLOPS	Not supported	A40 only
INT8	299.3 TOPS	Not supported	A40 only
FP32	37.4 TFLOPS	0.9 TFLOPS	43x higher on A40
Platform
Interconnect	PCIe only	PCIe only
Board power	300 W	45 W	6.7x higher on A40
Released	Q4 2020	Q3 2014	6 years newer on A40
Precision
Supported formats	FP16BF16TF32FP32INT4INT8	FP32

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

Source: A40 datasheet and K620 datasheet.

Where to rent them

Providers that rent these GPUs, with each one's cheapest rate. No provider we track offers both right now.

Provider	A40	K620
Vast.ai USA	$0.28 /GPU/hr On-demand	--
GPU.ai UAE	$0.49 /GPU/hr On-demand	--
Runpod USA	$0.49 /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	--
Database Mart USA	$0.61 /GPU/hr Reserved	--