Nvidia A100 vs Nvidia RTX 4090

The A100 has 3.3x the memory and 92% more bandwidth. The RTX 4090 is newer and typically cheaper.

At a glance

Memory

3.3x more on A100

A100: 80 GB

RTX 4090: 24 GB

Memory bandwidth

92% higher on A100

A100: 1.94 TB/s

RTX 4090: 1.01 TB/s

Cheapest on-demand

15% cheaper on RTX 4090

A100: $0.39 /GPU/hr

RTX 4090: $0.33 /GPU/hr

Price comparison

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

Billing	A100	RTX 4090	Difference
On-demand	$1.84 /GPU/hr from $0.39	$0.45 /GPU/hr from $0.33	75% cheaper on RTX 4090
Reserved	$1.43 /GPU/hr from $0.40 (1 mo)	$0.52 /GPU/hr from $0.35 (1 mo)	64% cheaper on RTX 4090
Spot	$0.79 /GPU/hr from $0.23	$0.33 /GPU/hr from $0.16	58% cheaper on RTX 4090

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. Verify before provisioning. More on how we price.

Price history

A100 vs RTX 4090 price history

Weekly median on-demand price per GPU per hour

Last 12 months

Aggregating historical prices...

Specs comparison

Spec	A100	RTX 4090	Difference
Memory
Capacity	80 GB HBM2e 40 GB on SXM, PCIe	24 GB GDDR6X	3.3x more on A100
Bandwidth	1,935 GB/s 2,039 GB/s on SXM 1,555 GB/s on SXM, PCIe	1,010 GB/s	92% higher on A100
Bus width	5,120-bit	384-bit	13x wider on A100
Compute · dense
FP8	Not supported	330.3 TFLOPS	RTX 4090 only
FP16 / BF16	312 TFLOPS	165.2 TFLOPS	89% higher on A100
INT8	624 TOPS	660.6 TOPS	6% higher on RTX 4090
FP32	19.5 TFLOPS	82.6 TFLOPS	4.2x higher on RTX 4090
FP64	9.7 TFLOPS	Not supported	A100 only
Platform
Interconnect	NVLink 600 GB/s	PCIe only	NVLink on A100 only
Board power	300 W	450 W	50% higher on RTX 4090
Released	Q2 2020	Q4 2022	2 years newer on RTX 4090
Precision
Supported formats	FP16BF16TF32FP32FP64INT4INT8	FP8FP16BF16TF32FP32INT4INT8

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 RTX 4090 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	RTX 4090
GPU.ai UAE	$0.39 /GPU/hr On-demand	$0.34 /GPU/hr On-demand
Vast.ai USA	$0.41 /GPU/hr On-demand PCIe	$0.33 /GPU/hr On-demand
Lium Distributed	$1.00 /GPU/hr On-demand SXM	$0.50 /GPU/hr On-demand
Runpod USA	$1.00 /GPU/hr On-demand SXM	$0.34 /GPU/hr On-demand
Packet·ai USA	$1.43 /GPU/hr On-demand	$0.39 /GPU/hr On-demand
Jarvislabs India	$0.89 /GPU/hr On-demand	--
Thunder Compute USA	$1.09 /GPU/hr On-demand	--
Massed Compute USA	$1.35 /GPU/hr On-demand	--
Salad Distributed	--	$0.33 /GPU/hr On-demand
Theta EdgeCloud Distributed	--	$0.38 /GPU/hr On-demand
Daytona USA	--	$0.99 /GPU/hr On-demand