The Dell T640 and R740 share the same 14G platform but in different form factors. The T640 is a tower (no rack needed), while the R740 is a 2U rack server.
Comparison
| Feature | T640 (Tower) | R740 (Rack) |
|---|---|---|
| Form Factor | Tower / 5U Rack | 2U Rack |
| Drive Bays | 18 LFF or 32 SFF | 8 LFF or 16 SFF |
| GPU Support | Up to 4 GPUs | Up to 3 GPUs |
| Noise Level | Lower (tower fans) | Higher (rack density) |
| Ideal For | Office, remote site, lab | Data center, co-lo |