NVIDIA B300 SXM 262GB 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 262GB
Full specs →Architecture
Blackwell Ultra
Year
2025
Memory
263 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—
Memory
263 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—
Memory 263 GB—
Memory Bandwidth 8.0 TB/s—
TDP 1.4 kW—
Process Node 4nm—
Performance (TFLOPS)
B300 B30A
FP64
1.3 TFLOPS No verified data available
FP32
75 TFLOPS No verified data available
TF32
1,125 TFLOPS
2,250 TFLOPS sparse
No verified data availableBF16
2,250 TFLOPS
4,500 TFLOPS sparse
No verified data availableFP16
2,250 TFLOPS
4,500 TFLOPS sparse
No verified data availableFP8
4,500 TFLOPS
9,000 TFLOPS sparse
No verified data availableFP6
4,500 TFLOPS
9,000 TFLOPS sparse
No verified data availableFP4
13,500 TFLOPS
18,000 TFLOPS sparse
No verified data availableINT8
188 TOPS
375 TOPS sparse
No verified data availablePrecision B300 B30A
FP64 1.3 TFLOPS No verified data available
FP32 75 TFLOPS No verified data available
TF32 1,125 TFLOPS
2,250 TFLOPS sparse
No verified data availableBF16 2,250 TFLOPS
4,500 TFLOPS sparse
No verified data availableFP16 2,250 TFLOPS
4,500 TFLOPS sparse
No verified data availableFP8 4,500 TFLOPS
9,000 TFLOPS sparse
No verified data availableFP6 4,500 TFLOPS
9,000 TFLOPS sparse
No verified data availableFP4 13,500 TFLOPS
18,000 TFLOPS sparse
No verified data availableINT8 188 TOPS
375 TOPS sparse
No verified data availableFLOPS 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 $0.50 per GPU hour. The rental pricing section on this page lists current providers and rates for both GPUs.
Where to Rent
NVIDIA B300 SXM 262GB
| Provider | Configuration | Price/GPU-hr | Checked | |
|---|---|---|---|---|
| 1× B300 SXM | $0.50 | 3h ago | View → | |
| 1× B300 SXM Community | $0.50 | 3h ago | View → | |
| 1× B300 SXM Spot | $4.08 | 3h ago | View → | |
| 8× B300 SXM Spot | $4.48 | 3h ago | View → | |
| 2× B300 SXM Spot | $4.62 | 3h ago | View → | |
| 1× B300 SXM | $4.99 | 3h ago | View → | |
 Spheron | 1× B300 SXM Spot | $5.84 | 3h ago | View → |
 Gcore | 8× B300 SXM | $6.71 | 3h ago | View → |
| 1× B300 SXM | $7.10 | 8d ago | View → | |
| 1× B300 SXM | $7.10 | 3h ago | View → | |
| 1× B300 SXM | $7.40 | 3h ago | View → | |
 Enverge | 1× B300 SXM | $7.50 | 16d ago | View → |
| 1× B300 SXM | $7.85 | 3h ago | View → | |
 Lyceum | 1× B300 SXM | $7.99 | 3d ago | View → |
 Lium | 1× B300 SXM Community | $7.99 | 3h ago | View → |
| 8× B300 SXM | $8.39 | 3h ago | View → | |
 GPU.ai | 1× B300 SXM | $8.99 | 3h ago | View → |
| 1× B300 SXM | $9.24 | 3h ago | View → | |
| 2× B300 SXM Community | $9.80 | 3h ago | View → | |
| 1× B300 SXM Reserved | $9.99 | 3h ago | View → | |
| 1× B300 SXM | $11.19 | 3h ago | View → | |
| 8× B300 SXM | $11.19 | 3h ago | View → | |
| 8× B300 SXM | $17.80 | 3h ago | View → | |
 Shadeform Excess Supply capacity | 8× B300 SXM | $4.50 | 3h ago | View → |
Get Comparison Updates
New GPUs added weekly. Be the first to see how they compare.