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 XP 2100+ is manufactured by AMD. It was released in 2009-01-01. It is based on the Thoroughbred (2001−2002) architecture. It features 1 cores and 1 threads. Max frequency: 1.73 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 180 nm process technology. Socket: A. Thermal design power (TDP): 72 Watt. Passmark benchmark score: 265 points. Launch price was $149.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. The Athlon XP 2100+ is positioned at rank #1139 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 XP 2100+

Ryzen 9 7950X

MSRP: $194|Avg: $20

494786%

Core i9-10900T

MSRP: $120|Avg: $5

467524%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

339460%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

102265%

Ryzen 9 9950X

MSRP: $649|Avg: $129

81005%

Ryzen 5 8400F

MSRP: $303|Avg: $55

70863%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

40587%

Ryzen 5 2600X

MSRP: $229|Avg: $55

40057%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

36473%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

36470%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

36062%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

35089%

#13

Core i3-9100E

MSRP: $202|Avg: $30

34598%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

34459%

#15

Core i3-8300T

MSRP: $138|Avg: $25

34146%

#1139

Athlon XP 2100+

MSRP: $420|Avg: $30

100%

#1140

Pentium III 1266S

MSRP: $369|Avg: $20

90%

#1141

Pentium 4 1.80

MSRP: $562|Avg: $40

63%

#1142

Pentium III 1133

MSRP: $990|Avg: $30

29%

Based on actual market prices and performance synthetic scores.

Technical Analysis

Detailed breakdown of Athlon XP 2100+ specifications and capabilities.

⚡

Processing Power

The Athlon XP 2100+ is a 1-core / 1-thread processor based on the Thoroughbred (2001−2002) architecture, manufactured on a 180 nm process node. It reaches a maximum boost clock of 1.73 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 0 kB of L3 cache, plus 256 kB of L2 cache and 128 kB of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 265, placing it in the Entry Level performance tier as a Legacy generation product.

Specification	Athlon XP 2100+
Cores / ThreadsPhysical/logical processing units	1C / 1T
Max Boost ClockPeak single-core speed under boost	1.73 GHz
ArchitectureCPU microarchitecture design	Thoroughbred (2001−2002)
Process NodeFabrication technology — smaller = more efficient	180 nm
L3 CacheShared cache — reduces memory latency for all cores	0 kB
L2 CachePer-core fast cache for frequently accessed data	256 kB
L1 CacheUltra-fast per-core cache	128 kB
Die SizePhysical silicon area of the processor	150 mm2
Transistor CountMore transistors = more capabilities	37 million
64-bit Support	No
Windows 11 Compatible	No
PassMark ScoreOverall multi-threaded benchmark score	265

🧠

Memory & Platform

The Athlon XP 2100+ fits into the A 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 XP 2100+
TypeDesktop or Laptop processor	desktop
SocketMotherboard socket required	A
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-266
Max RAM CapacityMaximum installable memory	4 GB
RAM ChannelsDual-channel doubles bandwidth vs single-channel	1
ECC SupportError-Correcting Code memory — prevents data corruption	Yes
Integrated GPUBuilt-in graphics processor	No
Compatible ChipsetsMotherboard chipsets that support this CPU	AMD Socket A
Max CPUs in ConfigMulti-socket support for servers	1

🌡️

Power & Cooling

The Athlon XP 2100+ has a rated TDP (Thermal Design Power) of 72 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed.

Specification	Athlon XP 2100+
TDPThermal Design Power — heat output under sustained workload	72 Watt

💰

Value Analysis

At an average price of $30 (MSRP: $420), the Athlon XP 2100+ delivers 9 PassMark points per dollar. It currently holds Rank #1139 in the overall cost-benefit ranking — this ranking factors in performance-per-dollar relative to all available processors. Performance ranking position: #3625 out of all indexed processors.

Specification	Athlon XP 2100+
MSRPManufacturer's Suggested Retail Price	$420
Avg Price (30d)Average market price over the last 30 days	$30
Launch PriceOriginal retail price at launch	$149
Cost-Benefit RankPosition in overall value ranking	#1139
Performance RankPosition in overall performance ranking	#3625
Release DateLaunch date	2009-01-01
Release Year	2001
DesignerArchitecture designer (e.g. Intel, AMD)	AMD