Phenom II X4 905e vs Xeon E5-2620 v2

Place in the ranking	1435	2322
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.40	0.05
Market segment	Server	Desktop processor
Series	no data	4x Phenom II (Desktop)
Power efficiency	4.65	1.78
Architecture codename	Ivy Bridge-EP (2013)	Deneb (2009−2011)
Release date	1 September 2013 (11 years ago)	2 June 2009 (15 years ago)
Launch price (MSRP)	$417	$212

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E5-2620 v2 has 2700% better value for money than Phenom II X4 905e.

Detailed specifications

Xeon E5-2620 v2 and Phenom II X4 905e 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	6 (Hexa-Core)	4 (Quad-Core)
Threads	12	4
Base clock speed	2.1 GHz	2.5 GHz
Boost clock speed	2.6 GHz	2.5 GHz
Bus rate	7.2 GT/s	no data
L1 cache	64 KB (per core)	128 KB (per core)
L2 cache	256 KB (per core)	512 KB (per core)
L3 cache	15 MB (shared)	6 MB (shared)
Chip lithography	22 nm	45 nm
Die size	160 mm²	258 mm²
Maximum core temperature	71 °C	no data
Number of transistors	1,400 million	758 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon E5-2620 v2 and Phenom II X4 905e 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	2	1
Socket	FCLGA2011	AM3
Power consumption (TDP)	80 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2620 v2 and Phenom II X4 905e. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	45 nm, 1.25
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	-	no data
Demand Based Switching	+	no data
PAE	46 Bit	no data

Security technologies

Xeon E5-2620 v2 and Phenom II X4 905e technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
Secure Key	+	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2620 v2 and Phenom II X4 905e are enumerated here.

AMD-V	-	+
VT-d	+	no data
VT-x	+	no data
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2620 v2 and Phenom II X4 905e. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	768 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	51.2 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2620 v2 and Phenom II X4 905e.

PCIe version	3.0	2.0
PCI Express lanes	40	no data

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 E5-2620 v2 3.93
+222%

Phenom II X4 905e 1.22

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 E5-2620 v2 6246
+223%

Phenom II X4 905e 1936

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 E5-2620 v2 409
+19.9%

Phenom II X4 905e 341

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 E5-2620 v2 2101
+82.7%

Phenom II X4 905e 1150

Gaming performance

Pros & cons summary

Performance score	3.93	1.22
Recency	1 September 2013	2 June 2009
Physical cores	6	4
Threads	12	4
Chip lithography	22 nm	45 nm
Power consumption (TDP)	80 Watt	65 Watt

Xeon E5-2620 v2 has a 222.1% higher aggregate performance score, an age advantage of 4 years, 50% more physical cores and 200% more threads, and a 104.5% more advanced lithography process.

Phenom II X4 905e, on the other hand, has 23.1% lower power consumption.

The Xeon E5-2620 v2 is our recommended choice as it beats the Phenom II X4 905e in performance tests.

Be aware that Xeon E5-2620 v2 is a server/workstation processor while Phenom II X4 905e is a desktop one.

Should you still have questions on choice between Xeon E5-2620 v2 and Phenom II X4 905e, ask them in Comments section, and we shall answer.