Athlon 64 FX-55 vs Pentium SU4100

CPU

GPU

Athlon 64 FX-55

1 Cores1 Thrd104 WWMax: 2.6 GHz2004

Pentium SU4100

2 Cores2 Thrd10 WWMax: 1.3 GHz2009

Performance Spectrum - CPU

Athlon 64 FX-55

1 / 1

690

+0.7%

Athlon MP 2800+

Mobile Athlon 64 3000+

Athlon 64 3300+

Athlon 64 3600+

Ryzen 7 PRO 6860Z

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Pentium SU4100

2 / 2

685

0.0%

About PassMark

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.

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. The Athlon 64 FX-55 is positioned at rank 1134 and the Pentium SU4100 is on rank 1235, so the Athlon 64 FX-55 offers better cost-efficiency for playing games.

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-55

Ryzen 9 7950X

MSRP: $194|Avg: $20

375560%

Core i9-10900T

MSRP: $120|Avg: $5

354867%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

257663%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

77623%

Ryzen 9 9950X

MSRP: $649|Avg: $129

61486%

Ryzen 5 8400F

MSRP: $303|Avg: $55

53788%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

30807%

Ryzen 5 2600X

MSRP: $229|Avg: $55

30405%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

27684%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

27682%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

27372%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

26634%

#13

Core i3-9100E

MSRP: $202|Avg: $30

26261%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

26155%

#15

Core i3-8300T

MSRP: $138|Avg: $25

25918%

#1134

Athlon 64 FX-55

MSRP: $827|Avg: $50

100%

#1135

Athlon 64 FX-53

MSRP: $799|Avg: $15

98%

#1136

Athlon XP 2000+

MSRP: $339|Avg: $40

89%

#1137

Athlon 64 FX-57

MSRP: $1031|Avg: $200

84%

#1138

Athlon XP 3000+

MSRP: $588|Avg: $20

83%

#1139

Athlon XP 2100+

MSRP: $420|Avg: $30

76%

#1140

Pentium III 1266S

MSRP: $369|Avg: $20

69%

#1141

Pentium 4 1.80

MSRP: $562|Avg: $40

48%

#1142

Pentium III 1133

MSRP: $990|Avg: $30

22%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Pentium SU4100

#1223

Atom x5-Z8300

MSRP: $20|Avg: N/A

12380%

#1224

Atom Z3735G

MSRP: $17|Avg: N/A

12198%

#1225

Core i5-480M

MSRP: $81|Avg: $77

11198%

#1226

Core i5-460M

MSRP: $80|Avg: $129

11148%

#1227

Core i5-2540M

MSRP: $266|Avg: $10

11046%

#1229

Core i5-450M

MSRP: $32|Avg: $31

10667%

#1230

Core i3-380M

MSRP: $49|Avg: $25

10228%

#1231

Core i5-430M

MSRP: N/A|Avg: $33

10211%

#1232

Core 2 Duo T6600

MSRP: N/A|Avg: $4

9937%

#1235

Pentium SU4100

MSRP: $289|Avg: $15

100%

#1236

Core Solo T1400

MSRP: $200|Avg: $5

90%

#1237

Core i7-940XM

MSRP: $1096|Avg: N/A

87%

#1238

Core Solo T1350

MSRP: $200|Avg: $70

86%

#1240

Core Solo T1300

MSRP: $209|Avg: $10

78%

#1241

Core Solo T1200

MSRP: $209|Avg: $10

72%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Leadership: The Athlon 64 FX-55 delivers superior performance across the board. It outperforms the Pentium SU4100 in both compute-intensive tasks (0.7% faster) and gaming workloads.

Insight	Athlon 64 FX-55	Pentium SU4100
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	⚠️ Higher cost ($50)	✅ More affordable ($15)
Longevity	🛑 Legacy (Clawhammer (2001−2005) / 130 nm)	🛑 Legacy (Penryn (2008−2011) / 45 nm)

💎 Value Proposition

Value Proposition: While both processors are considered legacy components by modern standards, the Pentium SU4100 holds the technical lead in efficiency. Priced at $15 (vs $50), it costs 70% less. While offering basic entry-level performance, it results in a 231% higher cost efficiency score compared to the Athlon 64 FX-55.

Insight	Athlon 64 FX-55	Pentium SU4100
Cost Efficiency	❌ Lower cost efficiency	✅ Better overall value (+231%)
Upfront Cost	⚠️ Higher cost ($50)	✅ More affordable ($15)

Performance Check

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Athlon 64 FX-55 Benchmark Check

Pentium SU4100 Benchmark Check

Technical Specifications

Side-by-side comparison of Athlon 64 FX-55 and Pentium SU4100

Athlon 64 FX-55

The Athlon 64 FX-55 is manufactured by AMD. It was released in 10 October 2004 (21 years ago). It is based on the Clawhammer (2001−2005) architecture. It features 1 cores and 1 threads. Base frequency is 2.6 GHz, with boost up to 2.6 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 130 nm process technology. Socket: 939. Thermal design power (TDP): 104 Watt. Memory support: DDR1 Depends on motherboard. Passmark benchmark score: 690 points. Launch price was $180.

Pentium SU4100

The Pentium SU4100 is manufactured by Intel. It was released in 2007-01-01. It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 1.3 GHz, with boost up to 1.3 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 45 nm process technology. Socket: BGA956. Thermal design power (TDP): 10 Watt. Memory support: DDR3. Passmark benchmark score: 685 points. Launch price was $69.

⚡

Processing Power

The Athlon 64 FX-55 packs 1 cores / 1 threads, while the Pentium SU4100 offers 2 cores / 2 threads — the Pentium SU4100 has 1 more core. Boost clocks reach 2.6 GHz on the Athlon 64 FX-55 versus 1.3 GHz on the Pentium SU4100 — a 66.7% clock advantage for the Athlon 64 FX-55 (base: 2.6 GHz vs 1.3 GHz). The Athlon 64 FX-55 uses the Clawhammer (2001−2005) architecture (130 nm), while the Pentium SU4100 uses Penryn (2008−2011) (45 nm). In PassMark, the Athlon 64 FX-55 scores 690 against the Pentium SU4100's 685 — a 0.7% lead for the Athlon 64 FX-55. Both processors carry 0 kB of L3 cache.

Feature	Athlon 64 FX-55	Pentium SU4100
Cores / Threads	1 / 1	2 / 2+100%
Boost Clock	2.6 GHz+100%	1.3 GHz
Base Clock	2.6 GHz+100%	1.3 GHz
L3 Cache	0 kB	0 kB
L2 Cache	1 MB	2 MB+100%
Process	130 nm	45 nm-65%
Architecture	Clawhammer (2001−2005)	Penryn (2008−2011)
PassMark	690	685

🧠

Memory & Platform

The Athlon 64 FX-55 uses the 939 socket (PCIe 1.1), while the Pentium SU4100 uses BGA956 (PCIe 1.1) — making them incompatible on the same motherboard.

Feature	Athlon 64 FX-55	Pentium SU4100
Socket	939	BGA956
PCIe Generation	PCIe 1.1	PCIe 1.1
Max RAM Speed	DDR1-400	—
Max RAM Capacity	4 GB	—
RAM Channels	2	—
ECC Support	❌	—
PCIe Lanes	0	—

💰

Value Analysis

The Athlon 64 FX-55 launched at $827 MSRP, while the Pentium SU4100 debuted at $289. At current prices ($50 vs $15), the Pentium SU4100 is $35 cheaper. In terms of value (PassMark points per dollar), the Athlon 64 FX-55 delivers 13.8 pts/$ vs 45.7 pts/$ for the Pentium SU4100 — making the Pentium SU4100 the 107.2% better value option.