A10-6790K vs Xeon E5420

Place in the ranking	2296	1958
Place by popularity	not in top-100	not in top-100
Market segment	Server	Desktop processor
Power efficiency	1.50	1.84
Architecture codename	no data	Richland (2013−2014)
Release date	1 October 2007 (17 years ago)	28 October 2013 (11 years ago)

Detailed specifications

Xeon E5420 and A10-6790K 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	4 (Quad-Core)
Threads	no data	4
Base clock speed	2.5 GHz	4 GHz
Boost clock speed	no data	4.3 GHz
L1 cache	no data	192 KB
L2 cache	no data	4096 KB
L3 cache	12 MB L2 Cache	0 KB
Chip lithography	45 nm	32 nm
Die size	no data	246 mm²
Maximum core temperature	67 °C	74 °C
Maximum case temperature (TCase)	no data	74 °C
Number of transistors	no data	1,178 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	-	+
VID voltage range	0.85V-1.35V	no data

Compatibility

Information on Xeon E5420 and A10-6790K 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	100 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5420 and A10-6790K. You'll probably need this information if you require some particular technology.

AES-NI	-	+
FMA	-	FMA4
AVX	-	AVX
PowerNow	-	+
PowerGating	-	+
VirusProtect	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	+	no data
FSB parity	+	no data

Security technologies

Xeon E5420 and A10-6790K 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 E5420 and A10-6790K are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5420 and A10-6790K. 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 8670D
จำนวนพาธไลน์	no data	384
Enduro	-	+
Switchable graphics	-	+
UVD	-	+
VCE	-	+

Graphics interfaces

Available interfaces and connections of Xeon E5420 and A10-6790K integrated GPUs.

DisplayPort	-	+
HDMI	-	+

Graphics API support

APIs supported by Xeon E5420 and A10-6790K integrated GPUs, sometimes API versions are included.

DirectX

no data

DirectX® 11

Peripherals

Specifications and connection of peripherals supported by Xeon E5420 and A10-6790K.

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 E5420 1.27

A10-6790K 1.94
+52.8%

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.

Xeon E5420 2022

A10-6790K 3089
+52.8%

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.

Xeon E5420 368
+3.1%

A10-6790K 357

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.

Xeon E5420 1197
+40.8%

A10-6790K 850

Gaming performance

Pros & cons summary

Performance score	1.27	1.94
Recency	1 October 2007	28 October 2013
Chip lithography	45 nm	32 nm
Power consumption (TDP)	80 Watt	100 Watt

Xeon E5420 has 25% lower power consumption.

A10-6790K, on the other hand, has a 52.8% higher aggregate performance score, an age advantage of 6 years, and a 40.6% more advanced lithography process.

The A10-6790K is our recommended choice as it beats the Xeon E5420 in performance tests.

Be aware that Xeon E5420 is a server/workstation processor while A10-6790K is a desktop one.

Should you still have questions on choice between Xeon E5420 and A10-6790K, ask them in Comments section, and we shall answer.