AMD logo AMD Radeon RX 7800 XT vs Nvidia logo Nvidia B300

The B300 is newer, with 18x the memory and 13x the bandwidth. The Radeon RX 7800 XT is cheaper right now.

At a glance

Memory

18x more on B300

Radeon RX 7800 XT
16 GB
B300
288 GB

Memory bandwidth

13x higher on B300

Radeon RX 7800 XT
624 GB/s
B300
8,000 GB/s

Cheapest on-demand

98% cheaper on Radeon RX 7800 XT

Radeon RX 7800 XT
$0.13 /GPU/hr
B300
$5.51 /GPU/hr

Price comparison

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

Billing Radeon RX 7800 XT B300 Difference
On-demand -- /GPU/hr from $0.13 $9.50 /GPU/hr from $5.51
Reserved No reserved listings $5.80 /GPU/hr from $4.32 (60 mo)
Spot -- /GPU/hr from $0.04 $6.20 /GPU/hr from $4.08

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.

Price history

Radeon RX 7800 XT vs B300 price history

Weekly median on-demand price per GPU per hour

Last 12 months
Aggregating historical prices...

Specs comparison

Spec Radeon RX 7800 XT B300 Difference
Memory
Capacity 16 GB GDDR6 288 GB HBM3e 18x more on B300
Bandwidth 624 GB/s 8,000 GB/s 13x higher on B300
Bus width 256-bit 8,192-bit 32x wider on B300
Compute · dense
FP4 Not supported 14,000 TFLOPS B300 only
FP8 Not supported 4,500 TFLOPS B300 only
FP16 / BF16 74.6 TFLOPS 2,250 TFLOPS 30x higher on B300
INT8 74.6 TOPS 153.5 TOPS 2.1x higher on B300
FP32 37.3 TFLOPS 75 TFLOPS 2x higher on B300
FP64 Not supported 1.2 TFLOPS B300 only
Platform
Interconnect PCIe only NVLink 1,800 GB/s NVLink on B300 only
Board power 263 W 1,100 W 4.2x higher on B300
Released Q3 2023 Q1 2025 2 years newer on B300
Precision
Supported formats FP16BF16FP32INT4INT8 FP4FP6FP8FP16BF16TF32FP32FP64INT8

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

Source: Radeon RX 7800 XT datasheet and B300 datasheet.

Where to rent them

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

1 provider list the Radeon RX 7800 XT and 40 the B300. Every listing is on the Radeon RX 7800 XT page and the B300 page.

Similar GPUs

Other comparisons in the same class.

Our data for AMD Radeon RX 7800 XT was last updated on Nov. 13, 2026, and for Nvidia B300 on Sept. 14, 2026.