Nvidia H800 vs Nvidia RTX PRO 4000 SFF

The H800 has 3.3x the memory and 4.6x the bandwidth.

At a glance

Memory

3.3x more on H800

H800: 80 GB

RTX PRO 4000 SFF: 24 GB

Memory bandwidth

4.6x higher on H800

H800: 2,000 GB/s

RTX PRO 4000 SFF: 432 GB/s

Cheapest on-demand

H800: --

RTX PRO 4000 SFF: $0.38 /GPU/hr

Price comparison

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

Billing	H800	RTX PRO 4000 SFF	Difference
On-demand	No on-demand listings	-- /GPU/hr from $0.38

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 RTX PRO 4000 SFF: we only show one when at least 3 providers list the GPU on that billing type. Verify before provisioning. More on how we price.

Specs comparison

Spec	H800	RTX PRO 4000 SFF	Difference
Memory
Capacity	80 GB HBM2e	24 GB GDDR7	3.3x more on H800
Bandwidth	2,000 GB/s	432 GB/s	4.6x higher on H800
Bus width	5,120-bit	192-bit	27x wider on H800
Compute · dense
FP4	Not supported	385 TFLOPS	RTX PRO 4000 SFF only
FP8	1,513 TFLOPS	192.5 TFLOPS	7.9x higher on H800
FP16 / BF16	756.5 TFLOPS	96.3 TFLOPS	7.9x higher on H800
INT8	1,513 TOPS	192.5 TOPS	7.9x higher on H800
FP32	51 TFLOPS	24 TFLOPS	2.1x higher on H800
Platform
Interconnect	NVLink 400 GB/s	PCIe only	NVLink on H800 only
Board power	350 W	70 W	5x higher on H800
Released	Q1 2023	Q3 2025	2 years newer on RTX PRO 4000 SFF
Precision
Supported formats	FP8FP16BF16TF32FP32FP64INT8	FP4FP8FP16BF16TF32FP32INT8