CPUs

Intel Xeon 6503P-B vs Intel Xeon E5-1691 v3 Full Specs

12 Cores
24 Threads
2GHz
14 Cores
28 Threads
2.5GHz
TDP
110W
TDP
135W
Bandwidth
153.6GB/s
DDR5
Bandwidth
68.3GB/s
DDR4
iGPU
0
iGPU
0
Socket
Socket

Xeon 6503P-BXeon 6503P-B-
-
Xeon E5-1691 v3Xeon E5-1691 v31,270
x1

12 Cores
14 Cores
24 Threads
28 Threads

Base Clock
2GHz
Base Clock
2.5GHz
Boost Clock
3.5GHz
Boost Clock
3.4GHz
Overclocking
Locked
Overclocking
Locked

L1i
64KB
L1i
32KB
L1d
48KB
L1d
32KB
L2
2MB
L2
256KB
L3
48MB
L3
35MB

Type
DDR5
Type
DDR4
Max Memory
1.13TB
Max Memory
768GB
ECC
Yes
ECC
Yes
Channels
4
Channels
4
Bus Width
256-bit
Bus Width
256-bit
Speed
4800MT/s
Speed
2133MT/s
Bandwidth
153.6GB/s
Bandwidth
68.3GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
153.6GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
68.3GB/s

TDP
110W
TDP
135W
T-Case
85°C Max
T-Case
-

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

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

Manufacturer
Manufacturer
ISA
x86-64
ISA
x86-64
Architecture
Architecture
Family
Family
Branding
Xeon 2024 branding
Branding
Xeon 2013 branding
Codename
Granite Rapids-D
16Die
Granite Rapids-LCCVariant
Redwood CoveP-Core
12M-Core
Codename
Haswell-EP
-
Haswell-E-HCCVariant
-
-
Market Segment
Server
Market Segment
Server
Release Date
Feb 24, 2025
Release Date
Sep 8, 2014

Foundry
Intel
Foundry
Intel
Other Foundries
IntelIO
Other Foundries
-
Fabrication Node
Intel 3
Intel 7IO
Fabrication Node
22nm
-
Die Size
-
482mm²IO
Die Size
662mm²
-
Transistor Count
-
Transistor Count
5.7 Billion
Transistor Density
-
Transistor Density
9 MTr/mm²

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