The GB300 has 12x the memory and 12x the bandwidth. The RTX PRO 4000 is cheaper right now.

At a glance

Memory

12x more on GB300

GB300
288 GB
RTX PRO 4000
24 GB

Memory bandwidth

12x higher on GB300

GB300
8,000 GB/s
RTX PRO 4000
672 GB/s

Cheapest on-demand

99% cheaper on RTX PRO 4000

GB300
$18.00 /GPU/hr
RTX PRO 4000
$0.20 /GPU/hr

Price comparison

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

Billing GB300 RTX PRO 4000 Difference
On-demand -- /GPU/hr from $18.00 -- /GPU/hr from $0.20
Reserved On request -- /GPU/hr from $0.26 (24 mo)
Spot Sold out -- /GPU/hr from $0.14

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 GB300 and on-demand, reserved and spot on the RTX PRO 4000: 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

GB300 vs RTX PRO 4000 price history

Weekly median on-demand price per GPU per hour

Last 8 months
Aggregating historical prices...

Specs comparison

Spec GB300 RTX PRO 4000 Difference
Memory
Capacity 288 GB HBM3e 24 GB GDDR7 12x more on GB300
Bandwidth 8,000 GB/s 672 GB/s 12x higher on GB300
Bus width 8,192-bit 192-bit 43x wider on GB300
Compute · dense
FP4 15,000 TFLOPS 589 TFLOPS 25x higher on GB300
FP8 5,000 TFLOPS 294.5 TFLOPS 17x higher on GB300
FP16 / BF16 2,500 TFLOPS 147.3 TFLOPS 17x higher on GB300
INT8 165 TOPS 294.5 TOPS 78% higher on RTX PRO 4000
FP32 80 TFLOPS 37 TFLOPS 2.2x higher on GB300
FP64 1.3 TFLOPS Not supported GB300 only
Platform
Interconnect NVLink 1,800 GB/s PCIe only NVLink on GB300 only
Board power 1,400 W 145 W 9.7x higher on GB300
Released Q1 2025 Q1 2025
Precision
Supported formats FP4FP6FP8FP16BF16TF32FP32FP64INT8 FP4FP8FP16BF16TF32FP32INT8

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

Source: GB300 datasheet and RTX PRO 4000 datasheet.

Where to rent them

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

Similar GPUs

Other comparisons in the same class.

Our data for Nvidia GB300 was last updated on Sept. 14, 2026, and for Nvidia RTX PRO 4000 on Sept. 14, 2026.