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CPU

AMD

AMD Phenom II X4 820

Processor

CPU cores: 4
CPU threads: 4^*
Thermal design power: 95 W

Benchmark results

PassMark · version unreported · cpuMark2,103^*Platform unreported Compare results
PassMark · version unreported · threadMark1,138^*Platform unreported Compare results
Reported score · version unreported · mark3,400^*Platform unreported Compare results

Processing & platform

CPU cores: 4
CPU threads: 4^*
Base clock: 2.8 GHz^*
CPU reference clock: 200 MHz^*
Reported CPU clock: 2.8 GHz^*
L3 cache: 4 MB
Architecture: K10^*
Socket / package: AM3
Process node: 45 nm^*
Reported chip die area: 258 mm²^*
Chip/package TDP: 95 W^*
Transistors: 758 million^*

Cache hierarchy

L3 / total
Level
L3
Scope
total
Size
4 MB

Compatible sockets

Memory & storage

Rated memory bandwidth: 21.30 GB/s^*

Power specifications

Thermal design power: 95 W

System configuration

Detailed specifications

Specifications 1 · 12 fields

name: AMD Phenom II X4 820^*
cores: 4^*
logicals: 1^*
samples: 226^*
price: 62.02^*
tdp: 95^*
date: 2009-11-01^*
socket: AM3^*
category: Desktop^*
speed: 2,800^*
turbo: 0^*
cpuCount: 1^*

Specifications 2 · 33 fields

name: Phenom II X4 820^*
Release Date: Sep 1st, 2009^*
Part#: HDX820WFK4FGI HDX820WFGIBOX^*
Frequency: 2.8^* GHz
Base Clock: 200^* MHz
Multiplier: 14.0x^*
Multiplier Unlocked: No^*
Voltage: 1.425^* V
Codename: Deneb^*
Socket: AMD Socket AM3^*
Generation: Phenom II X4 (Deneb)^*
Memory Support: DDR3^*
ECC Memory: Yes^*
# of Cores: 4^*
# of Threads: 4^*
SMP # CPUs: 1^*
Integrated Graphics: On certain motherboards (Chipset feature)^*
Cache L1: 128 KB (per core)^*
Cache L2: 512 KB (per core)^*
Features: MMX, 3DNow!, SSE, SSE2, SSE3, SSE4A, AMD64, NX bit, AMD-V, ABM^*
Foundry: GlobalFoundries^*
Rated Speed: 1,333^* MT/s
Memory Bus: Dual-channel^*
Memory Bandwidth: 21.3^* GB/s
PCI-Express: Gen 2^*
Process Size: 45^* nm
Cache L3: 4 MB (shared)^*
Chipsets: AMD 700 Series, AMD 800 Series, AMD 900 Series, nForce 630a, nForce 700a, nForce 900a^*
Transistors: 758 million^*
Die Size: 258^* mm²
Package: µPGA^*
Market: Desktop^*
Production Status: End-of-life^*

Specifications 3 · 2 fields

brand: AMD^*
name: AMD Phenom II X4 820^*

Specifications 4 · 9 fields

Vendor: AMD^*
Product: AMD Phenom II X4 820^*
Type: CPU^*
Release Date: 2009-09-01^*
Process Size (nm): 45^* nm
TDP (W): 95^* W
Die Size (mm^2): 258^* mm²
Transistors (million): 758^*
Freq (MHz): 2,800^* MHz

Specifications 5 · 14 fields

opn tray: HDX820WFK4FGI^*
opn pib: HDX820WFGIBOX^*
revision: C2^*
cache l1: 128^*
cache l2: 512^*
cache l3: 4,096^*
first mention year: 2015^*
name: AMD Phenom II X4 820^*
base frequency: 2,800^*
tdp: 95^*
max temp: 71^*
socket: AM3^*
product line: AMD Phenom II X4^*
lithography: 45^*

Specifications 6 · 11 fields

name: AMD Phenom II X4 820^*
socket: AM3^*
category: Desktop^*
price: $74.95*^*
mark: 3,400^*
value: 45.37^*
single thread: 977^*
single thread value: 13.04^*
tdp: 95^*
powerperf: 35^*
testdate: Nov 2009^*

Specifications 7 · 6 fields

microarchitecture

K10^*

Scope and conditions

source_native_row_context

category: cpu^*
original_product_name: AMD Phenom II X4 820^*
catalogue_reference: AMD Phenom II X4 820^*
identity_scope: source-exact-processor-name^*
dataset_date: 2025-07-23^*

scope

Historical publisher declaration. Missing or conflicting observations remain unverified; no benchmark or tested performance inferred.^*

Reported core clock

2.8^* GHz

Scope and conditions

source_native_row_context

category: cpu^*
original_product_name: AMD Phenom II X4 820^*
catalogue_reference: AMD Phenom II X4 820^*
identity_scope: source-exact-processor-name^*
dataset_date: 2025-07-23^*

scope

Source calls this core clock; it is not relabelled as base, sustained or gaming clock.^*

core count

4^*

Scope and conditions

source_native_row_context

category: cpu^*
original_product_name: AMD Phenom II X4 820^*
catalogue_reference: AMD Phenom II X4 820^*
identity_scope: source-exact-processor-name^*
dataset_date: 2025-07-23^*

scope

Historical publisher declaration. Missing or conflicting observations remain unverified; no benchmark or tested performance inferred.^*

Historical listing price (dataset 2025-07-23)

amount: 52.64^*
currency: USD^*
dataset_date: 2025-07-23^*
scope: Historical listing observation; retailer, stock and current availability unknown^*

USD

Scope and conditions

source_native_row_context

category: cpu^*
original_product_name: AMD Phenom II X4 820^*
catalogue_reference: AMD Phenom II X4 820^*
identity_scope: source-exact-processor-name^*
dataset_date: 2025-07-23^*

scope

Historical publisher declaration. Missing or conflicting observations remain unverified; no benchmark or tested performance inferred.^*

name

AMD Phenom II X4 820^*

Scope and conditions

source_native_row_context

category: cpu^*
original_product_name: AMD Phenom II X4 820^*
catalogue_reference: AMD Phenom II X4 820^*
identity_scope: source-exact-processor-name^*
dataset_date: 2025-07-23^*

scope

Historical publisher declaration. Missing or conflicting observations remain unverified; no benchmark or tested performance inferred.^*

tdp

95^* W

Scope and conditions

source_native_row_context

category: cpu^*
original_product_name: AMD Phenom II X4 820^*
catalogue_reference: AMD Phenom II X4 820^*
identity_scope: source-exact-processor-name^*
dataset_date: 2025-07-23^*

scope

Historical publisher declaration. Missing or conflicting observations remain unverified; no benchmark or tested performance inferred.^*

Specifications 8 · 12 fields

cpuName

AMD Phenom II X4 820^*

Scope and conditions

benchmark_context

suite: PassMark^*
test_configuration_verified: No^*
comparable: No^*

testDate

2,009^*

Scope and conditions

benchmark_context

suite: PassMark^*
test_configuration_verified: No^*
comparable: No^*

socket

AM3^*

Scope and conditions

benchmark_context

suite: PassMark^*
test_configuration_verified: No^*
comparable: No^*