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 A4 Micro-6400T is manufactured by AMD. It was released in 29 April 2014 (11 years ago). It is based on the Mullins (2014) architecture. It features 4 cores and 4 threads. Base frequency is 1 GHz, with boost up to 1.6 GHz. L2 cache: 2048 kB. Built on 28 nm process technology. Socket: FT3. Thermal design power (TDP): 5 Watt. Memory support: DDR3-1333. Passmark benchmark score: 1,082 points. Launch price was $69.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. The A4 Micro-6400T is positioned at rank #843 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 A4 Micro-6400T

#831

Atom x5-Z8300

MSRP: $20|Avg: N/A

1356%

#832

Atom Z3735G

MSRP: $17|Avg: N/A

1336%

#833

Core i5-480M

MSRP: $81|Avg: $77

1226%

#834

Core i5-460M

MSRP: $80|Avg: $129

1221%

#835

Core i5-2540M

MSRP: $266|Avg: $10

1210%

#837

Core i5-450M

MSRP: $32|Avg: $31

1168%

#838

Core i3-380M

MSRP: $49|Avg: $25

1120%

#839

Core i5-430M

MSRP: N/A|Avg: $33

1118%

#840

Core 2 Duo T6600

MSRP: N/A|Avg: $4

1088%

#843

A4 Micro-6400T

MSRP: N/A|Avg: N/A

100%

#852

Pentium P6300

MSRP: $80|Avg: $10

97%

#854

E-350

MSRP: $50|Avg: $15

97%

#856

Ryzen Embedded R1305G

MSRP: $150|Avg: $50

97%

Based on actual market prices and performance synthetic scores.

FPS Benchmarks

Predicted performance for A4 Micro-6400T across popular games. Tested paired with RTX 4090 to isolate CPU performance.

Technical Analysis

Detailed breakdown of A4 Micro-6400T specifications and capabilities.

⚡

Processing Power

The A4 Micro-6400T is a 4-core / 4-thread processor based on the Mullins (2014) architecture, manufactured on a 28 nm process node. It reaches a maximum boost clock of 1.6 GHz from a base frequency of 1 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 1,082, placing it in the Entry Level performance tier as a Legacy generation product. Geekbench 6 single-core (the most relevant metric for gaming FPS) records 180.

Specification	A4 Micro-6400T
Cores / ThreadsPhysical/logical processing units	4C / 4T
Max Boost ClockPeak single-core speed under boost	1.6 GHz
Base ClockGuaranteed minimum operating frequency	1 GHz
ArchitectureCPU microarchitecture design	Mullins (2014)
Process NodeFabrication technology — smaller = more efficient	28 nm
L2 CachePer-core fast cache for frequently accessed data	2048 kB
Die SizePhysical silicon area of the processor	107 mm2
Transistor CountMore transistors = more capabilities	930 million
64-bit Support	Yes
Windows 11 Compatible	No
PassMark ScoreOverall multi-threaded benchmark score	1,082
Geekbench 6 SingleSingle-core performance — most relevant for gaming	180

🧠

Memory & Platform

The A4 Micro-6400T fits into the FT3 socket and supports PCIe 3.0 with 8 total PCIe lanes for expansion cards and storage. It supports DDR3-1333 memory at speeds up to DDR3L-1333 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 8 GB across 1 channels (dual-channel doubles bandwidth). Integrated graphics: Radeon R3 — allows display output without a dedicated GPU, useful for troubleshooting and light tasks.

Specification	A4 Micro-6400T
TypeDesktop or Laptop processor	Laptop
SeriesProduct family	AMD A-Series
SocketMotherboard socket required	FT3
PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth	PCIe 3.0
PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion	8
RAM TypeSupported memory standard	DDR3-1333
Max RAM SpeedMaximum officially supported memory frequency	DDR3L-1333
Max RAM CapacityMaximum installable memory	8 GB
RAM ChannelsDual-channel doubles bandwidth vs single-channel	1
ECC SupportError-Correcting Code memory — prevents data corruption	No
Integrated GPUBuilt-in graphics processor	Radeon R3
Max CPUs in ConfigMulti-socket support for servers	1

🔧

Advanced Features

The A4 Micro-6400T is primarily designed for Tablet. Virtualization: AMD-V — enables running virtual machines efficiently (important for development and server workloads). Its primary market competitor is the Atom Z3770.

Specification	A4 Micro-6400T
Primary Use CaseIntended workload category	Tablet
OverclockingWhether CPU clock can be manually increased	🔒 Locked
AVX-512Advanced vector instructions for AI/ML workloads	❌ Not Supported
VirtualizationHardware-assisted virtualization technology	AMD-V
Direct CompetitorMarket equivalent from rival manufacturer	Atom Z3770

🌡️

Power & Cooling

The A4 Micro-6400T has a rated TDP (Thermal Design Power) of 5 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed. No stock cooler is included — you will need to purchase an aftermarket cooler separately. Recommended cooling: None.

Specification	A4 Micro-6400T
TDPThermal Design Power — heat output under sustained workload	5 Watt
Included CoolerStock cooler bundled in the box	No
Recommended CoolerSuggested aftermarket cooling solution	None

💰

Value Analysis

It currently holds Rank #843 in the overall cost-benefit ranking — this ranking factors in performance-per-dollar relative to all available processors. Performance ranking position: #3022 out of all indexed processors.

Specification	A4 Micro-6400T
Launch PriceOriginal retail price at launch	$69
Cost-Benefit RankPosition in overall value ranking	#843
Performance RankPosition in overall performance ranking	#3022
Release DateLaunch date	29 April 2014 (11 years ago)
Release Year	2014
DesignerArchitecture designer (e.g. Intel, AMD)	AMD
ManufacturerFabrication foundry (e.g. TSMC)	GlobalFoundries