NVIDIA B300 SXM 288GB vs NVIDIA B30A
Side-by-side specifications, performance, and rental pricing for datacenter AI workloads.
B300: Blackwell Ultra, 2025 B30A: Blackwell Ultra, 2025
NVIDIA B300 SXM 288GB
Full specs →Architecture
Blackwell Ultra
Year
2025
VRAM
288 GB
TDP
1.4 kW
NVIDIA B30A
Full specs →Architecture
Blackwell Ultra
Year
2025
Specifications
B300 B30A
Architecture
Blackwell UltraBlackwell Ultra
Launch Year
20252025
Form Factor
SXM—
VRAM
288 GB—
Memory Bandwidth
8.0 TB/s—
TDP
1.4 kW—
Process Node
4nm—
Spec B300 B30A
Architecture Blackwell UltraBlackwell Ultra
Launch Year 20252025
Form Factor SXM—
VRAM 288 GB—
Memory Bandwidth 8.0 TB/s—
TDP 1.4 kW—
Process Node 4nm—
Performance (TFLOPS)
B300 B30A
FP64
1.3 TFlops —
FP32
75.0 TFlops —
FP16
2250.0 TFlops
4500.0
TFLOPS sparse
—BF16
2250.0 TFlops
4500.0
TFLOPS sparse
—FP8
4500.0 TFlops
9000.0
TFLOPS sparse
—INT8
187.5 TFlops
375.0
TOPS sparse
—Precision B300 B30A
FP64 1.3 TFlops —
FP32 75.0 TFlops —
FP16 2250.0 TFlops
4500.0
TFLOPS sparse
—BF16 2250.0 TFlops
4500.0
TFLOPS sparse
—FP8 4500.0 TFlops
9000.0
TFLOPS sparse
—INT8 187.5 TFlops
375.0
TOPS sparse
—FLOPS by Precision
What actually differs
Both GPUs launched in 2025: the B300 on Blackwell Ultra and the B30A on Blackwell Ultra.
For LLM training and inference, weight the FP8 and FP16 rows and memory capacity most heavily. For scientific and HPC workloads, the FP64 row is the one to read.
Frequently asked questions
Can I rent the B300 or the B30A in the cloud?
Yes. Live cloud listings tracked by Flopper start at $3.75 per GPU hour. The rental pricing section on this page lists current providers and rates for both GPUs.
Where to Rent
NVIDIA B300 SXM 288GB
| Provider | Instance | Price/GPU-hr | Checked | |
|---|---|---|---|---|
DataCrunch | 1B300.30V (spot) | $3.75 | 3h ago | View → |
Nebius | — | $4.30 | 3h ago | View → |
CoreWeave | nvidia-b300 (spot) | $4.48 | 3h ago | View → |
RunPod | B300 (Community Cloud) | $6.94 | 3h ago | View → |
Hyperstack | — | $7.40 | 3h ago | View → |
DataCrunch | 1B300.30V (on-demand) | $7.50 | 3h ago | View → |
Nebius | — | $7.85 | 3h ago | View → |
RunPod | B300 (Secure Cloud) | $7.89 | 3h ago | View → |
Scaleway | B300-SXM-8-288G | $8.76 | 3h ago | View → |
DigitalOcean | gpu-b300x1-288gb | $11.19 | 3h ago | View → |
DigitalOcean | gpu-b300x8-2304gb | $11.19 | 3h ago | View → |
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