CPUs

Intel Xeon E5-1660 v3 vs Intel Xeon 6544P-B Full Specs

8 Cores
16 Threads
3GHz
32 Cores
64 Threads
2GHz
TDP
140W
TDP
170W
Bandwidth
68.3GB/s
DDR4
Bandwidth
179.2GB/s
DDR5
Socket
Socket

Xeon E5-1660 v3Xeon E5-1660 v31,352
x1
Xeon 6544P-BXeon 6544P-B-
-

8 Cores
32 Cores
16 Threads
64 Threads

Base Clock
3GHz
Base Clock
2GHz
Boost Clock
3.5GHz
Boost Clock
3.3GHz
Overclocking
Locked
Overclocking
Locked

L1i
32KB
L1i
64KB
L1d
32KB
L1d
48KB
L2
256KB
L2
2MB
L3
20MB
L3
128MB

Type
DDR4
Type
DDR5
Max Memory
768GB
Max Memory
1.13TB
ECC
Yes
ECC
Yes
Channels
4
Channels
4
Bus Width
256-bit
Bus Width
256-bit
Speed
2133MT/s
Speed
5600MT/s
Bandwidth
68.3GB/s
Bandwidth
179.2GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
68.3GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
179.2GB/s

TDP
140W
TDP
170W
T-Case
-
T-Case
85°C Max

Bus Type
DMI
Bus Type
-
Bus Config
4 lanes
Bus Config
-
Bus Speed
5GT/s
Bus Speed
-
Bus Bandwidth
2.5GB/s
Bus Bandwidth
-

PCIe
PCIe 3.0 x40
39.4GB/sBandwidth
PCIe
PCIe 5.0 x32
126GB/sBandwidth
-
PCIe Secondary
PCIe 4.0 x16
31.5GB/sBandwidth

Manufacturer
Manufacturer
ISA
x86-64
ISA
x86-64
Architecture
Architecture
Family
Family
Branding
Xeon 2013 branding
Branding
Xeon 2024 branding
Codename
Haswell-E
-
Haswell-E-LCCVariant
-
-
Codename
Granite Rapids-D
27Die
Granite Rapids-HCCVariant
Redwood CoveP-Core
32M-Core
Market Segment
Server
Market Segment
Server
Release Date
Sep 8, 2014
Release Date
Dec 1, 2025

Foundry
Intel
Foundry
Intel
Other Foundries
-
Other Foundries
IntelIO
Fabrication Node
22nm
-
Fabrication Node
Intel 3
Intel 7IO
Die Size
354mm²
-
Die Size
598mm²
482mm²IO
Transistor Count
2.6 Billion
Transistor Count
-
Transistor Density
7 MTr/mm²
Transistor Density
-

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