PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Overview

The Athlon II X4 651 is manufactured by AMD. It was released in 2009-01-01. It is based on the Llano (2011−2012) architecture. It features 4 cores and 4 threads. Base frequency is 3 GHz, with boost up to 3 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FM1. Thermal design power (TDP): 100 Watt. Memory support: DDR3. Passmark benchmark score: 3,584 points. Launch price was $149.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Athlon II X4 651

#797

Pentium Dual-Core E2220

MSRP: $32|Avg: $32

107%

#798

Core i5-8400T

MSRP: $182|Avg: $179

106%

#799

Athlon 240GE

MSRP: $75|Avg: $110

106%

#800

Core i3-2120T

MSRP: $127|Avg: $38

106%

#801

Pentium G860

MSRP: $86|Avg: $36

106%

#802

Celeron G3900TE

MSRP: $42|Avg: $45

106%

#803

FX-8140

MSRP: $225|Avg: $120

104%

#804

Core i5-7500T

MSRP: $202|Avg: $130

103%

#805

Athlon 64 3600+

MSRP: $149|Avg: $15

102%

#806

Celeron G1620

MSRP: $52|Avg: $40

102%

#807

Core i7-870

MSRP: $300|Avg: $80

102%

#808

Pentium Dual-Core E2200

MSRP: $100|Avg: $25

101%

#809

Core 5 120UL

MSRP: $277|Avg: $270

100%

#810

A6-7400K

MSRP: $101|Avg: $43

100%

#811

Ryzen Embedded V3C14

MSRP: $305|Avg: $305

100%

#812

Athlon II X4 651

MSRP: $92|Avg: $92

100%

#813

Athlon II X2 210e

MSRP: $60|Avg: $28

100%

#814

Phenom X4 9100e

MSRP: $200|Avg: $35

99%

#815

Athlon II X3 425e

MSRP: $79|Avg: $58

99%

#816

Celeron 2.60

MSRP: $53|Avg: $10

99%

#817

Core i7-9700T

MSRP: $323|Avg: $276

99%

#818

Athlon X4 740

MSRP: $71|Avg: $71

96%

#819

Core i9-13900TE

MSRP: $554|Avg: $554

95%

#820

Core i5-655K

MSRP: $216|Avg: $55

94%

#821

Ryzen Embedded V2546

MSRP: $300|Avg: $300

93%

#822

Core i7-920

MSRP: $284|Avg: $79

93%

#823

Phenom II X3 700e

MSRP: $125|Avg: $40

93%

#824

Ryzen Threadripper PRO 7945WX

MSRP: $1399|Avg: $1399

91%

#825

A4-3420

MSRP: $65|Avg: $30

91%

#826

Core i5-6440EQ

MSRP: $250|Avg: $150

91%

#827

Core i7-6700TE

MSRP: $303|Avg: $175

91%

Based on actual market prices and performance synthetic scores.

FPS Benchmarks

Predicted performance for Athlon II X4 651 across popular games. Tested paired with RTX 4090 to isolate CPU performance.

Technical Analysis

Detailed breakdown of Athlon II X4 651 specifications and capabilities.

⚡

Processing Power

The Athlon II X4 651 is a 4-core / 4-thread processor based on the Llano (2011−2012) architecture, manufactured on a 32 nm process node. It reaches a maximum boost clock of 3 GHz from a base frequency of 3 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 0 kB of L3 cache, plus 1 MB (per core) of L2 cache and 128 kB (per core) of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 3,584, placing it in the Entry Level performance tier as a Legacy generation product.

Specification	Athlon II X4 651
Cores / ThreadsPhysical/logical processing units	4C / 4T
Max Boost ClockPeak single-core speed under boost	3 GHz
Base ClockGuaranteed minimum operating frequency	3 GHz
ArchitectureCPU microarchitecture design	Llano (2011−2012)
Process NodeFabrication technology — smaller = more efficient	32 nm
L3 CacheShared cache — reduces memory latency for all cores	0 kB
L2 CachePer-core fast cache for frequently accessed data	1 MB (per core)
L1 CacheUltra-fast per-core cache	128 kB (per core)
Die SizePhysical silicon area of the processor	228 mm2
Transistor CountMore transistors = more capabilities	1,178 million
64-bit Support	Yes
Windows 11 Compatible	No
PassMark ScoreOverall multi-threaded benchmark score	3,584

🧠

Memory & Platform

The Athlon II X4 651 fits into the FM1 socket and supports PCIe 2.0 with 16 total PCIe lanes for expansion cards and storage. It supports DDR3 memory at speeds up to DDR3-1866 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 16 GB across 2 channels (dual-channel doubles bandwidth).

Specification	Athlon II X4 651
TypeDesktop or Laptop processor	desktop
SocketMotherboard socket required	FM1
PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth	PCIe 2.0
PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion	16
RAM TypeSupported memory standard	DDR3
Max RAM SpeedMaximum officially supported memory frequency	DDR3-1866
Max RAM CapacityMaximum installable memory	16 GB
RAM ChannelsDual-channel doubles bandwidth vs single-channel	2
ECC SupportError-Correcting Code memory — prevents data corruption	No
Integrated GPUBuilt-in graphics processor	No
Compatible ChipsetsMotherboard chipsets that support this CPU	AMD FM1
Max CPUs in ConfigMulti-socket support for servers	1

🌡️

Power & Cooling

The Athlon II X4 651 has a rated TDP (Thermal Design Power) of 100 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed.

Specification	Athlon II X4 651
TDPThermal Design Power — heat output under sustained workload	100 Watt

💰

Value Analysis

At an average price of $92, the Athlon II X4 651 delivers 39 PassMark points per dollar. Performance ranking position: #2097 out of all indexed processors.

Specification	Athlon II X4 651
MSRPManufacturer's Suggested Retail Price	$92
Avg Price (30d)Average market price over the last 30 days	$92
Launch PriceOriginal retail price at launch	$149
Performance RankPosition in overall performance ranking	#2097
Release DateLaunch date	2009-01-01
Release Year	2011
DesignerArchitecture designer (e.g. Intel, AMD)	AMD