Intel Xeon E5-4640 vs E5-2650

General info

Comparing Xeon E5-4640 and Xeon E5-2650 processor market type (desktop or notebook), architecture, sales start time and price.

Place in our rating
 
Value for money (0-100)
13.03
 
8.81
Market segment
Server
 
Server
Architecture codename
Sandy Bridge EP
 
Sandy Bridge EP
Launch date
14 May 2012 (9 years ago)
 
6 March 2012 (9 years ago)
Launch price (MSRP)
$2,730
 
$91
Price now
$50 (0x MSRP)
 
$79 (0.9x MSRP)

Technical specs

Xeon E5-4640 and Xeon E5-2650 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
8 (Octa-Core)
 
8 (Octa-Core)
Threads
16
 
16
Base clock speed
2.4 GHz
 
2 GHz
Boost clock speed
2.8 GHz
 
2.8 GHz
L1 cache
64 KB (per core)
 
64 KB (per core)
L2 cache
256 KB (per core)
 
256 KB (per core)
L3 cache
20480 KB (shared)
 
20480 KB (shared)
Chip lithography
32 nm
 
32 nm
Die size
435 mm2
 
435 mm2
Maximum core temperature
no data
 
77 °C
Number of transistors
2,270 million
 
2,270 million
64 bit support
+
 
+
VID voltage range
0.6V-1.35V
 
0.6V-1.35V

Compatibility

Information on Xeon E5-4640 and Xeon E5-2650 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
4
 
2
Socket
FCLGA2011
 
FCLGA2011
Thermal design power (TDP)
95 Watt
 
95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-4640 and Xeon E5-2650. You'll probably need this information if you require some particular technology.

Instruction set extensions
Intel® AVX
 
Intel® AVX
AES-NI
+
 
+
AVX
+
 
+
vPro
-
 
+
Enhanced SpeedStep (EIST)
+
 
+
Turbo Boost Technology
2.0
 
2.0
Hyper-Threading Technology
+
 
+
Idle States
+
 
+
Thermal Monitoring
+
 
+
Flex Memory Access
+
 
-
Demand Based Switching
+
 
+

Security technologies

Xeon E5-4640 and Xeon E5-2650 technologies aimed at improving security, for example, by protecting against hacks.

TXT
+
 
+
EDB
+
 
+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-4640 and Xeon E5-2650 are enumerated here.

VT-d
+
 
+
VT-x
+
 
+
EPT
+
 
+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-4640 and Xeon E5-2650. Depending on the motherboards, higher memory frequencies may be supported.

Supported memory types
DDR3-800, DDR3-1066, DDR3-1333, DDR3-1600
 
DDR3-800, DDR3-1066, DDR3-1333, DDR3-1600
Maximum memory size
384 GB
 
384 GB
Max memory channels
4
 
4
Maximum memory bandwidth
51.2 GB/s
 
51.2 GB/s
ECC memory support
+
 
+

Peripherals

Specifications and connection of peripherals supported by Xeon E5-4640 and Xeon E5-2650.

PCIe version
3.0
 
3.0
PCI Express lanes
40
 
40

Benchmark performance

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

Overall 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 E5-4640 8.33
Xeon E5-2650 8.34 +0.1%

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 E5-4640 7308
Xeon E5-2650 7320 +0.2%

Gaming performance

Let's see how good Xeon E5-4640 and Xeon E5-2650 are for gaming compared with game system requirements. Remember that sometimes official requirements may reflect real performance inaccurately. Also, your gaming PC must have a decent enough GPU to perform well.

Both CPUs satisfy the 100% minimum and 97% recommended requirements of all games known to us.

Minimum
100%
Recommended
97%
Minimum
100%
Recommended
97%

Advantages of Intel Xeon E5-4640

Somewhat newer (14 May 2012 vs 6 March 2012)

Cheaper ($50 vs $79)

Advantages of Intel Xeon E5-2650

0.1% better performance in benchmarks

So, which one is the better CPU?

Technical City couldn't decide between Intel Xeon E5-4640 and Intel Xeon E5-2650. The differences in performance seem too small.

Should you still have questions on choice between Xeon E5-4640 and Xeon E5-2650, ask them in Comments section, and we shall answer.

Cast your vote

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favourite CPU.

Intel Xeon E5-4640
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