AMD Radeon RX 7900 XTX vs Nvidia H800

The H800 has 3.3x the memory and 2.1x the bandwidth.

At a glance

Memory

3.3x more on H800

Radeon RX 7900 XTX: 24 GB

H800: 80 GB

Memory bandwidth

2.1x higher on H800

Radeon RX 7900 XTX: 960 GB/s

H800: 2,000 GB/s

Cheapest on-demand

Radeon RX 7900 XTX: $0.17 /GPU/hr

H800: --

Price comparison

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

Billing	Radeon RX 7900 XTX	H800	Difference
On-demand	-- /GPU/hr from $0.17	No on-demand listings
Spot	-- /GPU/hr from $0.07	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 and spot on the Radeon RX 7900 XTX: 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	Radeon RX 7900 XTX	H800	Difference
Memory
Capacity	24 GB GDDR6	80 GB HBM2e	3.3x more on H800
Bandwidth	960 GB/s	2,000 GB/s	2.1x higher on H800
Bus width	384-bit	5,120-bit	13x wider on H800
Compute · dense
FP8	Not supported	1,513 TFLOPS	H800 only
FP16 / BF16	123 TFLOPS	756.5 TFLOPS	6.2x higher on H800
INT8	123 TOPS	1,513 TOPS	12x higher on H800
FP32	61.4 TFLOPS	51 TFLOPS	20% higher on Radeon RX 7900 XTX
Platform
Interconnect	PCIe only	NVLink 400 GB/s	NVLink on H800 only
Board power	355 W	350 W	Within 5%
Released	Q4 2022	Q1 2023
Precision
Supported formats	FP16BF16FP32INT4INT8	FP8FP16BF16TF32FP32FP64INT8