The B300 is newer, with 36x the memory and 42x the bandwidth. The M4000 is cheaper right now.

At a glance

Memory

36x more on B300

B300
288 GB
M4000
8 GB

Memory bandwidth

42x higher on B300

B300
8,000 GB/s
M4000
192 GB/s

Cheapest on-demand

91% cheaper on M4000

B300
$4.99 /GPU/hr
M4000
$0.45 /GPU/hr

Price comparison

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

Billing B300 M4000 Difference
On-demand $8.25 /GPU/hr from $4.99 -- /GPU/hr from $0.45
Reserved $6.25 /GPU/hr from $4.25 No reserved listings
Spot $5.20 /GPU/hr from $2.99 No spot listings

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 on-demand on the M4000: 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 M4000 price history

Weekly median on-demand price per GPU per hour

Last 12 months
Aggregating historical prices...

Specs comparison

Spec B300 M4000 Difference
Memory
Capacity 288 GB HBM3e 8 GB GDDR5 36x more on B300
Bandwidth 8,000 GB/s 192 GB/s 42x higher on B300
Bus width 8,192-bit 256-bit 32x wider on B300
Compute · dense
FP4 14,000 TFLOPS Not supported B300 only
FP8 4,500 TFLOPS Not supported B300 only
FP16 / BF16 2,250 TFLOPS Not supported B300 only
INT8 153.5 TOPS Not supported B300 only
FP32 75 TFLOPS 2.6 TFLOPS 29x 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 120 W 9.2x higher on B300
Released Q1 2025 Q2 2015 10 years newer on B300
Precision
Supported formats FP4FP6FP8FP16BF16TF32FP32FP64INT8 FP32

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

Source: B300 datasheet and M4000 datasheet.

Where to rent them

Providers that rent these GPUs, with each one's cheapest rate. No provider we track offers both right now.

34 providers list the B300 and 1 the M4000. Every listing is on the B300 page and the M4000 page.

Similar GPUs

Other comparisons in the same class.

Our data for Nvidia B300 was last updated on Sept. 14, 2026, and for Nvidia M4000 on Sept. 14, 2026.