The B300 has 24x the memory and 12x the bandwidth. The RTX 5070 is typically cheaper.

At a glance

Memory

24x more on B300

B300
288 GB
RTX 5070
12 GB

Memory bandwidth

12x higher on B300

B300
8,000 GB/s
RTX 5070
672 GB/s

Cheapest on-demand

97% cheaper on RTX 5070

B300
$4.99 /GPU/hr
RTX 5070
$0.13 /GPU/hr

Price comparison

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

Billing B300 RTX 5070 Difference
On-demand $8.25 /GPU/hr from $4.99 $0.19 /GPU/hr from $0.13 98% cheaper on RTX 5070
Reserved $6.25 /GPU/hr from $4.25 -- /GPU/hr from $0.12 (1 mo)
Spot $5.20 /GPU/hr from $2.99 -- /GPU/hr from $0.08

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 5070: 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

B300 vs RTX 5070 price history

Weekly median on-demand price per GPU per hour

Last 12 months
Aggregating historical prices...

Specs comparison

Spec B300 RTX 5070 Difference
Memory
Capacity 288 GB HBM3e 12 GB GDDR7 24x more on B300
Bandwidth 8,000 GB/s 672 GB/s 12x higher on B300
Bus width 8,192-bit 192-bit 43x wider on B300
Compute · dense
FP4 14,000 TFLOPS 493.9 TFLOPS 28x higher on B300
FP8 4,500 TFLOPS 123.5 TFLOPS 36x higher on B300
FP16 / BF16 2,250 TFLOPS 61.7 TFLOPS 36x higher on B300
INT8 153.5 TOPS 246.9 TOPS 61% higher on RTX 5070
FP32 75 TFLOPS 30.9 TFLOPS 2.4x higher on B300
FP64 1.2 TFLOPS Not supported B300 only
Platform
Interconnect NVLink 1,800 GB/s PCIe only NVLink on B300 only
Board power 1,100 W 250 W 4.4x higher on B300
Released Q1 2025 Q1 2025
Precision
Supported formats FP4FP6FP8FP16BF16TF32FP32FP64INT8 FP4FP8FP16BF16TF32FP32INT8

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

Source: B300 datasheet and RTX 5070 datasheet.

Where to rent them

Providers that rent these GPUs, with each one's cheapest rate. Providers that rent both are listed first.

34 providers list the B300 and 3 the RTX 5070. Every listing is on the B300 page and the RTX 5070 page.

Similar GPUs

Other comparisons in the same class.

Our data for Nvidia B300 was last updated on Sept. 14, 2026, and for Nvidia RTX 5070 on Sept. 14, 2026.