Features comparison between the PowerEdge R660 with the PowerEdge R650 (part1)
The following table shows the comparison between the PowerEdge R660 with the PowerEdge R650.
Table one
| 
 Features  | 
 PowerEdge R660  | 
 PowerEdge R650  | 
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| 
 Processors  | 
 Two 4th Generation Intel® Xeon® 
 
 (Socket E) processors  | 
 Two 3rd Generation Intel® Xeon® (Socket P14) processors  | 
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| 
 CPU interconnect  | 
 Intel Ultra Path Interconnect (UPI)  | 
 Intel Ultra Path Interconnect (UPI)  | 
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| 
 Memory  | 
 ● 32 DDR5 DIMM slots supports RDIMM 8 TB max, speeds up to 4800 MT/s .  | 
 ● 32 DDR4 DIMM slots supports RDIMM 2 TB max or LRDIMM 8 TB max, speeds up to 3200 MT/s . ● Up to 16 Intel Persistent Memory 200 series (BPS) slots, 12 TB max  | 
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| 
 Storage Controllers  | 
 ● Internal: PERC H965i, PERC H755, PERC H755N, PERC H355, HBA355i ● External: HBA355e ● Software RAID: S160 ● BOSS- N1  | 
 ● Internal: PERC H755, PERC H755N, PERC H745, PERC H355, PERC H345, HBA355I ● External: PERC H840, HBA355E ● Software RAID: S150 ● BOSS-S1 ● BOSS-S2  | 
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| 
 Drive Bays  | 
 Front bays: Front bays: ● Up to 8 x 2 .5-inch NVMe SSD max 122.88 TB ● Up to 10 x 2 .5-inch SAS/SATA/NVMe (HDD/SSD) max 153.6 TB Rear bays: ● Up to 2 x 2 .5-inch SAS4/SATA (HDD/ SSD) max 30.72 TB  | 
 Front bays: Front bays: ● Up to 4 x 3 .5-inch SAS/SATA (HDD/SSD) max 64 TB ● Up to 8 x 2 .5-inch NVMe SSD max 122.88 TB ● Up to 10 x 2 .5-inch SAS/SATA/NVMe (HDD/SSD) max 153.6 TB Rear bays: ● Up to 2 x 2 .5-inch SAS4/SATA (HDD/SSD) max 30.72 TB  | 
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| 
 Power Supplies  | 
 ● 1800 W Titanium 200-240 VAC or 240 HVDC ● 1400 W Platinum 100-240 VAC or 240 HVDC ● 1100 W Titanium 100-240 VAC or 240 HVDC ● 1100 W LVDC -48 - -60 VDC ● 800 W Platinum 100-240 VAC or 240 HVDC ● 700 W Titanium 200-240 VAC or 240 HVDC Hot swap PSUs with full redundancy .  | 
 ● 1400 W Platinum 100-240 VAC or 240 HVDC ● 1100 W Titanium 100-240 VAC or 240 HVDC ● 1100 W LVDC -48 - -60 VDC ● 800 W Platinum 100-240 VAC or 240 HVDC Hot swap PSUs with full redundancy .  | 
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| 
 Cooling Options  | 
 ● ● 
  | 
 Air Cooling Optional Direct Liquid Cooling (DLC) NOTE: DLC is a rack solution and requires rack manifolds and a cooling distribution unit (CDU) to operate .  | 
 ● ● 
  | 
 Air Cooling Optional Direct Liquid Cooling (DLC) NOTE: DLC is a rack solution and requires rack manifolds and a cooling distribution unit (CDU) to operate .  | 

