AMD Radeon RX 7800 XT vs Nvidia H800

The H800 has 5x the memory and 3.2x the bandwidth.

At a glance

Memory

5x more on H800

Radeon RX 7800 XT: 16 GB

H800: 80 GB

Memory bandwidth

3.2x higher on H800

Radeon RX 7800 XT: 624 GB/s

H800: 2,000 GB/s

Cheapest on-demand

Radeon RX 7800 XT: $0.13 /GPU/hr

H800: --

Price comparison

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

Billing	Radeon RX 7800 XT	H800	Difference
On-demand	-- /GPU/hr from $0.13	No on-demand listings
Spot	-- /GPU/hr from $0.04	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 7800 XT: 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 7800 XT	H800	Difference
Memory
Capacity	16 GB GDDR6	80 GB HBM2e	5x more on H800
Bandwidth	624 GB/s	2,000 GB/s	3.2x higher on H800
Bus width	256-bit	5,120-bit	20x wider on H800
Compute · dense
FP8	Not supported	1,513 TFLOPS	H800 only
FP16 / BF16	74.6 TFLOPS	756.5 TFLOPS	10x higher on H800
INT8	74.6 TOPS	1,513 TOPS	20x higher on H800
FP32	37.3 TFLOPS	51 TFLOPS	37% higher on H800
Platform
Interconnect	PCIe only	NVLink 400 GB/s	NVLink on H800 only
Board power	263 W	350 W	33% higher on H800
Released	Q3 2023	Q1 2023	6 months newer on Radeon RX 7800 XT
Precision
Supported formats	FP16BF16FP32INT4INT8	FP8FP16BF16TF32FP32FP64INT8