AMD Radeon RX 7900 XTX vs Nvidia B100

The B100 is newer, with 8x the memory and 8.3x the bandwidth.

At a glance

Memory

8x more on B100

Radeon RX 7900 XTX: 24 GB

B100: 192 GB

Memory bandwidth

8.3x higher on B100

Radeon RX 7900 XTX: 960 GB/s

B100: 8,000 GB/s

Cheapest on-demand

Radeon RX 7900 XTX: $0.17 /GPU/hr

B100: --

Price comparison

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

Billing	Radeon RX 7900 XTX	B100	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	B100	Difference
Memory
Capacity	24 GB GDDR6	192 GB HBM3e	8x more on B100
Bandwidth	960 GB/s	8,000 GB/s	8.3x higher on B100
Bus width	384-bit
Compute · dense
FP4	Not supported	7,000 TFLOPS	B100 only
FP8	Not supported	3,500 TFLOPS	B100 only
FP16 / BF16	123 TFLOPS	1,750 TFLOPS	14x higher on B100
INT8	123 TOPS	3,500 TOPS	28x higher on B100
FP32	61.4 TFLOPS	60 TFLOPS	Within 5%
FP64	Not supported	30 TFLOPS	B100 only
Platform
Interconnect	PCIe only	NVLink 1,800 GB/s	NVLink on B100 only
Released	Q4 2022	Q4 2024	2 years newer on B100
Precision
Supported formats	FP16BF16FP32INT4INT8	FP4FP6FP8FP16BF16TF32FP32FP64INT8