Nvidia A40 vs Nvidia B300

The B300 is newer, with 6x the memory and 11x the bandwidth. The A40 is typically cheaper.

At a glance

Memory

6x more on B300

A40: 48 GB

B300: 288 GB

Memory bandwidth

11x higher on B300

A40: 696 GB/s

B300: 8,000 GB/s

Cheapest on-demand

94% cheaper on A40

A40: $0.28 /GPU/hr

B300: $4.99 /GPU/hr

Price comparison

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

Billing	A40	B300	Difference
On-demand	$0.65 /GPU/hr from $0.28	$8.25 /GPU/hr from $4.99	92% cheaper on A40
Reserved	-- /GPU/hr from $0.61 (24 mo)	$6.50 /GPU/hr from $4.25
Spot	-- /GPU/hr from $0.27	$4.87 /GPU/hr from $2.99

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 B300 price history

Weekly median on-demand price per GPU per hour

Last 12 months

Aggregating historical prices...

Specs comparison

Spec	A40	B300	Difference
Memory
Capacity	48 GB GDDR6	288 GB HBM3e	6x more on B300
Bandwidth	696 GB/s	8,000 GB/s	11x higher on B300
Bus width	384-bit	8,192-bit	21x wider on B300
Compute · dense
FP4	Not supported	14,000 TFLOPS	B300 only
FP8	Not supported	4,500 TFLOPS	B300 only
FP16 / BF16	149.7 TFLOPS	2,250 TFLOPS	15x higher on B300
INT8	299.3 TOPS	153.5 TOPS	95% higher on A40
FP32	37.4 TFLOPS	75 TFLOPS	2x higher on B300
FP64	Not supported	1.2 TFLOPS	B300 only
Platform
Interconnect	PCIe only	NVLink 1,800 GB/s	NVLink on B300 only
Board power	300 W	1,100 W	3.7x higher on B300
Released	Q4 2020	Q1 2025	4 years newer on B300
Precision
Supported formats	FP16BF16TF32FP32INT4INT8	FP4FP6FP8FP16BF16TF32FP32FP64INT8

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

Source: A40 datasheet and B300 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	B300
GPU.ai UAE	$0.49 /GPU/hr On-demand	$7.89 /GPU/hr On-demand SXM
Runpod USA	$0.49 /GPU/hr On-demand	$7.89 /GPU/hr On-demand SXM
Vast.ai USA	$0.28 /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	--
Daytona USA	--	$7.10 /GPU/hr On-demand
Lium Distributed	--	$7.85 /GPU/hr On-demand SXM
Lyceum Germany	--	$7.99 /GPU/hr On-demand
Verda Finland	--	$8.71 /GPU/hr On-demand SXM
EmpirioLabs AI USA	--	$15.70 /GPU/hr On-demand
Spheron Singapore	--	$5.81 /GPU/hr Spot SXM