COMPARE / B200 VS MI350X
B200 vs MI350X
Specs from the chip makers' datasheets; prices from the live Compute Cafe panel, refreshed hourly. Every rate is an on-demand published price with a source receipt.
CHEAPEST B200
$2.490/hr
SpotGPUs · median $6.25 · 36 providers
CHEAPEST MI350X
$4.000/hr
CloudRift · median $4.00 · 1 providers
CHEAPER RIGHT NOW
B200
live panel, 2026-09-27
| B200 | MI350X | |
|---|---|---|
| MAKER | NVIDIA | AMD |
| ARCHITECTURE | Blackwell | CDNA 4 |
| LAUNCHED | 2025 | 2025 |
| MEMORY | 192 GB HBM3e | 288 GB HBM3E |
| MEMORY BANDWIDTH | 8 TB/s | 8 TB/s |
| TENSOR COMPUTE | 2.25 PFLOPS FP16/BF16 tensor dense; 4.5 PFLOPS FP8; 9 PFLOPS FP4 dense | 2.3 PFLOPS FP16/BF16 matrix (4.6 PFLOPS FP8, 9.2 PFLOPS MXFP4) |
| POWER DRAW | 1,000 W | 1,000 W (OAM, air-cooled; MI355X 1,400 W liquid) |
| INTERCONNECT | NVLink 5.0 1.8 TB/s | OAM (UBB), Infinity Fabric xGMI |
HOW TO CHOOSE
B200 vs MI350X
On paper - B200 (Blackwell): 192 GB HBM3e, 8 TB/s bandwidth, 1,000 W. MI350X (CDNA 4): 288 GB HBM3E, 8 TB/s bandwidth, 1,000 W (OAM, air-cooled; MI355X 1,400 W liquid). The current-volume flagship question: NVIDIA's B200 against AMD's MI350X, the two chips most buyers actually cross-shop at the top of the market in 2026.
MI350X vs B200
On paper - B200 (Blackwell): 192 GB HBM3e, 8 TB/s bandwidth, 1,000 W. MI350X (CDNA 4): 288 GB HBM3E, 8 TB/s bandwidth, 1,000 W (OAM, air-cooled; MI355X 1,400 W liquid). The current-volume flagship question: NVIDIA's B200 against AMD's MI350X, the two chips most buyers actually cross-shop at the top of the market in 2026.
Workload fit
B200: frontier pre-training, fp4 inference, large moe training. MI350X: llm training, large-model inference, hpc.
B200 VS MI350X - FAQ
Which is cheaper to rent, B200 or MI350X?
By today's published on-demand rates: B200 starts at $2.490/GPU/hr (median $6.25, 36 providers) and MI350X starts at $4.000/GPU/hr (median $4.00, 1 providers). The cheapest live listing is the B200 at SpotGPUs. Figures recompute from the panel on every refresh.
B200 or MI350X - which should I rent?
B200: The B200 is Blackwell's datacenter flagship: roughly 2.3x the H100's dense compute, a new FP4 precision that doubles effective inference throughput, 192 GB at 8 TB/s, and NVLink 5 at 1.8 TB/s. MI350X: The MI350X is AMD's fourth-generation Instinct flagship: 288 GB of HBM3E at 8 TB/s with FP16 throughput at 2.3 PFLOPS, matching the MI355X's compute at a lower 1,000 W air-cooled power envelope. The side-by-side spec table and live price rows above give the full picture.
Where can I rent B200 and MI350X?
36 providers publish B200 rates and 1 publish MI350X rates on Compute Cafe. Every row links to the provider's own published price - committed-use and reserved rates are excluded.
Full pricing: B200 · MI350X · all comparisons