COMPARE / MI350X VS MI355X
MI350X vs MI355X
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 MI350X
$4.000/hr
CloudRift · median $4.00 · 1 providers
CHEAPEST MI355X
$2.590/hr
Vultr · median $5.99 · 3 providers
CHEAPER RIGHT NOW
MI355X
live panel, 2026-09-27
| MI350X | MI355X | |
|---|---|---|
| MAKER | AMD | AMD |
| ARCHITECTURE | CDNA 4 | CDNA 4 |
| LAUNCHED | 2025 | 2025 |
| MEMORY | 288 GB HBM3E | 288 GB HBM3e |
| MEMORY BANDWIDTH | 8 TB/s | 8 TB/s |
| TENSOR COMPUTE | 2.3 PFLOPS FP16/BF16 matrix (4.6 PFLOPS FP8, 9.2 PFLOPS MXFP4) | 2.3 PFLOPS FP16/BF16 dense; FP4 paths at 4x |
| POWER DRAW | 1,000 W (OAM, air-cooled; MI355X 1,400 W liquid) | not published as a single figure (OAM module, platform-dependent) |
| INTERCONNECT | OAM (UBB), Infinity Fabric xGMI | Infinity Fabric / UALink |
HOW TO CHOOSE
MI350X vs MI355X
Same silicon, same compute figures - the MI355X is the 1,400 W direct-liquid-cooled variant that sustains higher clocks. Air-cooled clusters take the MI350X; dense liquid-cooled builds take the MI355X.
Workload fit
MI350X: llm training, large-model inference, hpc. MI355X: large-model inference, training, cuda-locked stacks.
MI350X VS MI355X - FAQ
Which is cheaper to rent, MI350X or MI355X?
By today's published on-demand rates: MI350X starts at $4.000/GPU/hr (median $4.00, 1 providers) and MI355X starts at $2.590/GPU/hr (median $5.99, 3 providers). The cheapest live listing is the MI355X at Vultr. Figures recompute from the panel on every refresh.
MI350X or MI355X - which should I rent?
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. MI355X: The MI355X is AMD's CDNA 4 flagship: 288 GB of HBM3e aimed squarely at large-model inference and training, with FP4 support matching Blackwell Ultra's pitch. The side-by-side spec table and live price rows above give the full picture.
Where can I rent MI350X and MI355X?
1 providers publish MI350X rates and 3 publish MI355X rates on Compute Cafe. Every row links to the provider's own published price - committed-use and reserved rates are excluded.
Full pricing: MI350X · MI355X · all comparisons