A6-6420K vs Xeon E5440

Place in performance ranking	2039	2357
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.38	no data
Market segment	Server	Desktop processor
Architecture codename	no data	Richland (2013−2014)
Release date	1 January 2008 (16 years ago)	January 2014 (10 years ago)
Current price	$91	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon E5440 and A6-6420K basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	no data	2 (Dual-core)
Threads	no data	2
Base clock speed	2.83 GHz	4 GHz
Boost clock speed	no data	4.2 GHz
L1 cache	no data	96 KB
L2 cache	no data	1024 KB
L3 cache	12 MB L2 Cache	no data
Chip lithography	45 nm	32 nm
Die size	no data	246 mm²
Maximum core temperature	67 °C	70 °C
Maximum case temperature (TCase)	no data	70 °C
Number of transistors	no data	1,303 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	No	Yes
VID voltage range	0.85V-1.35V	no data

Compatibility

Information on Xeon E5440 and A6-6420K compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	no data	1
Socket	LGA771	FM2
Power consumption (TDP)	80 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5440 and A6-6420K. You'll probably need this information if you require some particular technology.

AES-NI	no data	+
FMA	no data	+
AVX	no data	+
PowerTune	no data	-
TrueAudio	no data	-
PowerNow	no data	+
PowerGating	no data	+
Out-of-band client management	no data	-
VirusProtect	no data	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	no data
Demand Based Switching	+	no data
FSB parity	+	no data
Status	Discontinued	no data

Security technologies

Xeon E5440 and A6-6420K technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5440 and A6-6420K are enumerated here.

AMD-V	no data	+
VT-x	+	no data
EPT	-	no data
IOMMU 2.0	no data	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5440 and A6-6420K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR3-1866
Max memory channels	no data	2

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	AMD Radeon HD 8470D
Number of pipelines	no data	192
Enduro	no data	+
Switchable graphics	no data	1
UVD	no data	+

Graphics interfaces

Available interfaces and connections of Xeon E5440 and A6-6420K integrated GPUs.

DisplayPort	no data	+
HDMI	no data	+

Graphics API support

APIs supported by Xeon E5440 and A6-6420K integrated GPUs, sometimes API versions are included.

DirectX

no data

DirectX® 11

Peripherals

Specifications and connection of peripherals supported by Xeon E5440 and A6-6420K.

PCIe version

no data

2.0

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Xeon E5440 1.53
+50%

A6-6420K 1.02

Xeon E5440 outperforms A6-6420K by 50% based on our aggregate benchmark results.

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Benchmark coverage: 68%

Xeon E5440 2374
+50.6%

A6-6420K 1576

Xeon E5440 outperforms A6-6420K by 51% in Passmark.

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Benchmark coverage: 42%

Xeon E5440 361

A6-6420K 478
+32.4%

A6-6420K outperforms Xeon E5440 by 32% in GeekBench 5 Single-Core.

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Benchmark coverage: 42%

Xeon E5440 1052
+36.4%

A6-6420K 771

Xeon E5440 outperforms A6-6420K by 36% in GeekBench 5 Multi-Core.