AMD Athlon II X4 651

AMD Athlon II X4 651
Benchmarks & Specs

Last updated:
The AMD Athlon II X4 651 was a decidedly solid choice in its era. This processor, based on the Llano architecture, offered a reliable foundation for numerous computer systems. Its quad-core configuration enabled convincing multitasking performance. That was a clear advantage for home users at the time.

It was manufactured using the 32-nanometer process. This contributed to the processor's good efficiency. We remember that the AMD Athlon II X4 651 always provided sufficient performance for everyday tasks. Whether surfing the internet or editing text documents, the work usually went smoothly. Even today, the AMD Athlon II X4 651 can handle simple applications satisfactorily.

It has 4 MB of Level 2 Cache. This supported the fast processing of data at the time. The maximum memory bandwidth of 21 GB/s was quite adequate for its class. It also offered full support for PCIe 2.0. This allowed the use of the then-current graphics cards and expansion cards. The Athlon II X4 651 was always considered a very inexpensive alternative.

It was ideal for building stable office or family computers. Its proven stability and modest nature made it a popular component in many PCs.
  • Four Cores
  • 32-Nanometer Manufacturing
  • Solid Performance for Everyday Tasks
  • Inexpensive and Stable Foundation

Performance Overview
Average performance across multiple benchmarks

Single-core performance
Rank ? / ?
In segment Desktop
Multi-core performance
Rank ? / ?
In segment Desktop
Geekbench 5, 64bit Single-Core

Geekbench 5, 64bit Single-Core
Single-core performance

AMD Phenom II X4 840
4C / 4T · 3.20 GHz
412
Intel Core2 Duo E7300
2C / 2T · 2.66 GHz
412
AMD Athlon II X4 651
4C / 4T · 3.00 GHz
411
AMD Phenom II X2 555
2C / 2T · 3.20 GHz
409
Intel Core 2 Quad Q9450
4C / 4T · 2.66 GHz
408
Geekbench 5, 64bit Multi-Core

Geekbench 5, 64bit Multi-Core
Multi-core performance

AMD Phenom II X4 840
4C / 4T · 3.20 GHz
1,473
Intel Celeron G3950
2C / 2T · 3.00 GHz
1,470
AMD Athlon II X4 651
4C / 4T · 3.00 GHz
1,467
Intel Pentium G3430
2C / 2T · 3.30 GHz
1,466
Intel Pentium G3440
2C / 2T · 3.30 GHz
1,466

More benchmarks

At a glance

PropertyValue
FamilyAMD Athlon II (52)
CPU groupAMD Athlon II X4 (Llano) (5)
ArchitectureLlano
Technology32 nm
SegmentDesktop
SocketFM1
Generation2
Predecessor
Successor

CPU Cores and Base Frequency

PropertyValue
CPU Cores / Threads4 / 4
Hyperthreading / SMT
Core architecturenormal
Cores: 4x
Frequency: 3.00 GHz
Turbo Frequency (1 Core):
Turbo Frequency (4 Cores):
L2-Cache4.00 MB
L3-Cache
OverclockingNo

Memory & PCIe

Memory typeMemory bandwidth
DDR3-1333
21.3 GB/s
PropertyValue
Max. Memory16 GB
Memory channels2
ECC
PCIe2.0
PCIe Bandwidth

Thermal Management

PropertyValue
TDP100 W
TDP (PL2)
TDP up
TDP down
T. junction max.

Technical details

PropertyValue
Chip design
AES-NI
Operating systemsWindows 10, Linux
Instruction setx86-64 (64 bit)
ISA extensionsMMX, 3DNow!, SSE3, SSE4a
Release dateQ4/2011
Release price
Documents
AMD Athlon II X4 651
AMD Athlon II X4 651
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