The B100 is newer, with 19x the memory and 11x the bandwidth.
At a glance
Memory
19x more on B100
- B100
- 192 GB
- RTX 3080
- 10 GB
Memory bandwidth
11x higher on B100
- B100
- 8,000 GB/s
- RTX 3080
- 760 GB/s
Cheapest on-demand
- B100
- --
- RTX 3080
- $0.10 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | B100 | RTX 3080 | Difference |
|---|---|---|---|
| On-demand | No on-demand listings | $0.14 /GPU/hr from $0.10 | |
| Reserved | No reserved listings | -- /GPU/hr from $0.12 (3 mo) | |
| Spot | No spot listings | -- /GPU/hr from $0.06 |
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 RTX 3080: 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
B100 vs RTX 3080 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | B100 | RTX 3080 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 192 GB HBM3e | 10 GB GDDR6X | 19x more on B100 |
| Bandwidth | 8,000 GB/s | 760 GB/s | 11x higher on B100 |
| Bus width | 320-bit | ||
| Compute · dense | |||
| FP4 | 7,000 TFLOPS | Not supported | B100 only |
| FP8 | 3,500 TFLOPS | Not supported | B100 only |
| FP16 / BF16 | 1,750 TFLOPS | 59.5 TFLOPS | 29x higher on B100 |
| INT8 | 3,500 TOPS | 238 TOPS | 15x higher on B100 |
| FP32 | 60 TFLOPS | 29.8 TFLOPS | 2x higher on B100 |
| FP64 | 30 TFLOPS | Not supported | B100 only |
| Platform | |||
| Interconnect | NVLink 1,800 GB/s | PCIe only | NVLink on B100 only |
| Released | Q4 2024 | Q3 2020 | 4 years newer on B100 |
| Precision | |||
| Supported formats | FP4FP6FP8FP16BF16TF32FP32FP64INT8 | 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: B100 datasheet and RTX 3080 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 | B100 | RTX 3080 |
|---|---|---|
Vast.ai
USA
|
-- | $0.10 /GPU/hr On-demand |
GPU.ai
UAE
|
-- | $0.11 /GPU/hr On-demand |
Salad
Distributed
|
-- | $0.14 /GPU/hr On-demand |
Theta EdgeCloud
Distributed
|
-- | $0.16 /GPU/hr On-demand |
Runpod
USA
|
-- | $0.17 /GPU/hr On-demand |
Similar GPUs
Other comparisons in the same class.
-
Nvidia H100
80 GB HBM3 · 58% less bandwidth than the B100
From $1.30 /GPU/hr Compare -
Nvidia B200
180 GB HBM3e · released Q1 2024
From $3.75 /GPU/hr Compare
-
Nvidia H200
141 GB HBM3e · 40% less bandwidth than the B100
From $2.09 /GPU/hr Compare
-
Nvidia RTX 4070
12 GB GDDR6X · 34% less bandwidth than the RTX 3080
From $0.11 /GPU/hr Compare
-
Nvidia RTX 3080 Ti
12 GB GDDR6X · 20% more bandwidth than the RTX 3080
From $0.11 /GPU/hr Compare
Our data for Nvidia B100 was last updated on Sept. 14, 2026, and for Nvidia RTX 3080 on Sept. 14, 2026.