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 Phenom II X4 820 is manufactured by AMD. It was released in 1 September 2009 (16 years ago). It is based on the Deneb (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 4 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 2,114 points. Launch price was $90.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. The Phenom II X4 820 is positioned at rank #916 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 Phenom II X4 820

Ryzen 9 7950X

MSRP: $194|Avg: $20

22123%

Core i9-10900T

MSRP: $120|Avg: $5

20904%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

15178%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

4573%

Ryzen 9 9950X

MSRP: $649|Avg: $129

3622%

Ryzen 5 8400F

MSRP: $303|Avg: $55

3168%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

1815%

Ryzen 5 2600X

MSRP: $229|Avg: $55

1791%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

1631%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

1631%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

1612%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

1569%

#13

Core i3-9100E

MSRP: $202|Avg: $30

1547%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

1541%

#15

Core i3-8300T

MSRP: $138|Avg: $25

1527%

#302

Core i7-6900K

MSRP: $1089|Avg: $1089

96%

#395

Ryzen Threadripper 3970X

MSRP: $4491|Avg: $4491

100%

#916

Phenom II X4 820

MSRP: $150|Avg: $50

100%

#917

Core i7-3930K

MSRP: $583|Avg: $150

100%

#919

Core i7-4930K

MSRP: $670|Avg: $100

99%

#920

Sempron LE-1250

MSRP: N/A|Avg: $20

99%

#921

Pentium E6500

MSRP: $84|Avg: $10

99%

#922

Core i5-2500

MSRP: $294|Avg: $69

99%

#924

Athlon II X4 605e

MSRP: $143|Avg: $25

97%

#925

Athlon II X4 610e

MSRP: $143|Avg: $20

97%

#926

Core i5-2390T

MSRP: $182|Avg: $182

97%

#927

Phenom II X4 910e

MSRP: $157|Avg: $69

97%

#928

FX-8100

MSRP: $300|Avg: $50

97%

#930

Celeron E1400

MSRP: $53|Avg: $63

96%

Based on actual market prices and performance synthetic scores.

FPS Benchmarks

Predicted performance for Phenom II X4 820 across popular games. Tested paired with RTX 4090 to isolate CPU performance.

Technical Analysis

Detailed breakdown of Phenom II X4 820 specifications and capabilities.

⚡

Processing Power

The Phenom II X4 820 is a 4-core / 4-thread processor based on the Deneb (2009−2011) architecture, manufactured on a 45 nm process node. It reaches a maximum boost clock of 2.8 GHz from a base frequency of 2.8 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 4 MB (total) of L3 cache, plus 512 kB (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 2,114, placing it in the Entry Level performance tier as a Legacy generation product.

Specification	Phenom II X4 820
Cores / ThreadsPhysical/logical processing units	4C / 4T
Max Boost ClockPeak single-core speed under boost	2.8 GHz
Base ClockGuaranteed minimum operating frequency	2.8 GHz
ArchitectureCPU microarchitecture design	Deneb (2009−2011)
Process NodeFabrication technology — smaller = more efficient	45 nm
L3 CacheShared cache — reduces memory latency for all cores	4 MB (total)
L2 CachePer-core fast cache for frequently accessed data	512 kB (per core)
L1 CacheUltra-fast per-core cache	128 kB (per core)
Die SizePhysical silicon area of the processor	258 mm2
Transistor CountMore transistors = more capabilities	758 million
64-bit Support	Yes
Windows 11 Compatible	No
PassMark ScoreOverall multi-threaded benchmark score	2,114

🧠

Memory & Platform

The Phenom II X4 820 fits into the AM3 socket and supports PCIe 2.0. It supports DDR3 memory.

Specification	Phenom II X4 820
TypeDesktop or Laptop processor	desktop
SocketMotherboard socket required	AM3
PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth	PCIe 2.0
RAM TypeSupported memory standard	DDR3
Max CPUs in ConfigMulti-socket support for servers	1

🌡️

Power & Cooling

The Phenom II X4 820 has a rated TDP (Thermal Design Power) of 95 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed.

Specification	Phenom II X4 820
TDPThermal Design Power — heat output under sustained workload	95 Watt

💰

Value Analysis

At an average price of $50 (MSRP: $150), the Phenom II X4 820 delivers 42 PassMark points per dollar. It currently holds Rank #916 in the overall cost-benefit ranking — this ranking factors in performance-per-dollar relative to all available processors. Performance ranking position: #2538 out of all indexed processors.

Specification	Phenom II X4 820
MSRPManufacturer's Suggested Retail Price	$150
Avg Price (30d)Average market price over the last 30 days	$50
Launch PriceOriginal retail price at launch	$90
Cost-Benefit RankPosition in overall value ranking	#916
Performance RankPosition in overall performance ranking	#2538
Release DateLaunch date	1 September 2009 (16 years ago)
Release Year	2009
DesignerArchitecture designer (e.g. Intel, AMD)	AMD
ManufacturerFabrication foundry (e.g. TSMC)	GlobalFoundries