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CPU

AMD

AMD Athlon X4 840

Processor

CPU cores: Reported value 1: 4^*
Reported value 2: 2^*
Reported value 3: 2^*
CPU threads: 4^*
Maximum boost clock: 3.8 GHz^*
Thermal design power: 65 W^*

Benchmark results

PassMark · version unreported · cpuMark3,287^*Platform unreported Compare results
PassMark · version unreported · threadMark1,482^*Platform unreported Compare results
Reported score · version unreported · mark5,044^*Platform unreported Compare results

Processing & platform

CPU cores: Reported value 1: 4^*
Reported value 2: 2^*
Reported value 3: 2^*
CPU threads: 4^*
Base clock: 3.1 GHz^*
CPU reference clock: 100 MHz^*
Maximum boost clock: 3.8 GHz^*
Architecture: Steamroller^*
Socket / package: FM2+^*

Memory & storage

Rated memory bandwidth: 34.10 GB/s^*

Power specifications

Thermal design power: 65 W^*

System configuration

Detailed specifications

Specifications 1 · 1 fields

Name: Athlon X4 840^*

Specifications 2 · 12 fields

name: AMD Athlon X4 840^*
cores: 2^*
logicals: 2^*
samples: 224^*
price: 124.95^*
tdp: 65^*
date: 2015-01-01^*
socket: FM2+^*
category: Desktop^*
speed: 3,100^*
turbo: 3,800^*
cpuCount: 1^*

Specifications 3 · 33 fields

name: Athlon X4 840^*
Release Date: Aug 12th, 2014^*
Part#: AD840XYBJABOX AD840XYBI44JA^*
Frequency: 3.1^* GHz
Turbo Clock: up to 3.8 GHz^*
Base Clock: 100^* MHz
Multiplier: 31.0x^*
Multiplier Unlocked: Yes^*
Voltage: 1.275^* V
Codename: Kaveri^*
Socket: AMD Socket FM2+^*
Generation: Athlon (Kaveri)^*
Memory Support: DDR3^*
ECC Memory: No^*
# of Cores: 4^*
# of Threads: 4^*
SMP # CPUs: 1^*
Cache L1: 256^* KB
Cache L2: 4^* MB
Features: MMX, 3DNow!, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AES, AVX, BMI1, FMA3, FMA4, AMD64, CLMUL, CnQ, NX bit, AMD-V, XOP, ABM, TBM, F16C, Turbo Core 3.0^*
Foundry: GlobalFoundries^*
Rated Speed: 2,133^* MT/s
Memory Bus: Dual-channel^*
Memory Bandwidth: 34.1^* GB/s
PCI-Express: Gen 3, 16 Lanes (CPU only)^*
Process Size: 28^* nm
tCaseMax: 72°C^*
Chipsets: A88X, A85X, A78, A75, A68H^*
Transistors: 2,411 million^*
Die Size: 245^* mm²
Package: µPGA^*
Market: Desktop^*
Production Status: End-of-life^*

Specifications 4 · 2 fields

brand: AMD^*
name: AMD Athlon X4 840^*

Specifications 5 · 11 fields

name: AMD Athlon X4 840^*
socket: FM2+^*
category: Desktop^*
price: $78.74*^*
mark: 5,044^*
value: 64.07^*
single thread: 1,549^*
single thread value: 19.68^*
tdp: 65^*
powerperf: 77^*
testdate: Jan 2015^*

Specifications 6 · 6 fields

microarchitecture

Steamroller^*

Scope and conditions

source_native_row_context

category: cpu^*
original_product_name: AMD Athlon X4 840^*
catalogue_reference: AMD Athlon X4 840^*
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.^*

boost clock

3.8^* GHz

Scope and conditions

source_native_row_context

category: cpu^*
original_product_name: AMD Athlon X4 840^*
catalogue_reference: AMD Athlon X4 840^*
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

3.1^* GHz

Scope and conditions

source_native_row_context

category: cpu^*
original_product_name: AMD Athlon X4 840^*
catalogue_reference: AMD Athlon X4 840^*
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 Athlon X4 840^*
catalogue_reference: AMD Athlon X4 840^*
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 Athlon X4 840^*

Scope and conditions

source_native_row_context

category: cpu^*
original_product_name: AMD Athlon X4 840^*
catalogue_reference: AMD Athlon X4 840^*
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

65^* W

Scope and conditions

source_native_row_context

category: cpu^*
original_product_name: AMD Athlon X4 840^*
catalogue_reference: AMD Athlon X4 840^*
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 7 · 12 fields

cpuName

AMD Athlon X4 840^*

Scope and conditions

benchmark_context

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

testDate

2,015^*

Scope and conditions

benchmark_context

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

socket

FM2+^*

Scope and conditions

benchmark_context

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