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 64 FX-51 is manufactured by AMD. It was released in 2009-01-01. It is based on the SledgeHammer (2003−2005) architecture. It features 1 cores and 1 threads. Max frequency: 2.2 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 130 nm process technology. Socket: 940. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 615 points. Launch price was $149.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. The Athlon 64 FX-51 is positioned at rank #1133 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 64 FX-51

Ryzen 9 7950X

MSRP: $194|Avg: $20

371089%

Core i9-10900T

MSRP: $120|Avg: $5

350643%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

254595%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

76699%

Ryzen 9 9950X

MSRP: $649|Avg: $129

60754%

Ryzen 5 8400F

MSRP: $303|Avg: $55

53148%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

30440%

Ryzen 5 2600X

MSRP: $229|Avg: $55

30043%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

27355%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

27352%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

27046%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

26317%

#13

Core i3-9100E

MSRP: $202|Avg: $30

25949%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

25844%

#15

Core i3-8300T

MSRP: $138|Avg: $25

25610%

#1133

Athlon 64 FX-51

MSRP: $733|Avg: $733

100%

#1134

Athlon 64 FX-55

MSRP: $827|Avg: $50

99%

#1135

Athlon 64 FX-53

MSRP: $799|Avg: $15

96%

#1136

Athlon XP 2000+

MSRP: $339|Avg: $40

88%

#1137

Athlon 64 FX-57

MSRP: $1031|Avg: $200

83%

#1138

Athlon XP 3000+

MSRP: $588|Avg: $20

82%

#1139

Athlon XP 2100+

MSRP: $420|Avg: $30

75%

#1140

Pentium III 1266S

MSRP: $369|Avg: $20

68%

#1141

Pentium 4 1.80

MSRP: $562|Avg: $40

48%

#1142

Pentium III 1133

MSRP: $990|Avg: $30

21%

Based on actual market prices and performance synthetic scores.

Technical Analysis

Detailed breakdown of Athlon 64 FX-51 specifications and capabilities.

⚡

Processing Power

The Athlon 64 FX-51 is a 1-core / 1-thread processor based on the SledgeHammer (2003−2005) architecture, manufactured on a 130 nm process node. It reaches a maximum boost clock of 2.2 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 of L2 cache and 128 kB of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 615, placing it in the Entry Level performance tier as a Legacy generation product.

Specification	Athlon 64 FX-51
Cores / ThreadsPhysical/logical processing units	1C / 1T
Max Boost ClockPeak single-core speed under boost	2.2 GHz
ArchitectureCPU microarchitecture design	SledgeHammer (2003−2005)
Process NodeFabrication technology — smaller = more efficient	130 nm
L3 CacheShared cache — reduces memory latency for all cores	0 kB
L2 CachePer-core fast cache for frequently accessed data	1 MB
L1 CacheUltra-fast per-core cache	128 kB
Die SizePhysical silicon area of the processor	193 mm2
Transistor CountMore transistors = more capabilities	105 million
64-bit Support	Yes
Windows 11 Compatible	No
PassMark ScoreOverall multi-threaded benchmark score	615

🧠

Memory & Platform

The Athlon 64 FX-51 fits into the 940 socket and supports PCIe 1.1 with 0 total PCIe lanes for expansion cards and storage. It supports ECC memory, providing error-correcting capabilities — essential for mission-critical workloads and servers.

Specification	Athlon 64 FX-51
TypeDesktop or Laptop processor	desktop
SocketMotherboard socket required	940
PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth	PCIe 1.1
PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion	0
Max RAM SpeedMaximum officially supported memory frequency	DDR-400
Max RAM CapacityMaximum installable memory	4 GB
RAM ChannelsDual-channel doubles bandwidth vs single-channel	2
ECC SupportError-Correcting Code memory — prevents data corruption	Yes
Integrated GPUBuilt-in graphics processor	No
Compatible ChipsetsMotherboard chipsets that support this CPU	AMD 940
Max CPUs in ConfigMulti-socket support for servers	1

🌡️

Power & Cooling

The Athlon 64 FX-51 has a rated TDP (Thermal Design Power) of 89 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed.

Specification	Athlon 64 FX-51
TDPThermal Design Power — heat output under sustained workload	89 Watt

💰

Value Analysis

At an average price of $733, the Athlon 64 FX-51 delivers 1 PassMark points per dollar. It currently holds Rank #1133 in the overall cost-benefit ranking — this ranking factors in performance-per-dollar relative to all available processors. Performance ranking position: #3420 out of all indexed processors.

Specification	Athlon 64 FX-51
MSRPManufacturer's Suggested Retail Price	$733
Avg Price (30d)Average market price over the last 30 days	$733
Launch PriceOriginal retail price at launch	$149
Cost-Benefit RankPosition in overall value ranking	#1133
Performance RankPosition in overall performance ranking	#3420
Release DateLaunch date	2009-01-01
Release Year	2003
DesignerArchitecture designer (e.g. Intel, AMD)	AMD