Intel Xeon E5-2643 v4 vs E5-2640 v3

General info

Comparing Xeon E5-2643 v4 and Xeon E5-2640 v3 processor market type (desktop or notebook), architecture, sales start time and price.

Place in our rating
 
Value for money (0-100)
0.25
 
1.26
Market segment
Server
 
Server
Series
Intel Xeon E5
 
no data
Architecture codename
Broadwell
 
Haswell
Launch date
20 June 2016 (4 years ago)
 
1 July 2014 (6 years ago)
Launch price (MSRP)
$1,552
 
no data
Price now
$2479 (1.6x MSRP)
 
$494

Technical specs

Xeon E5-2643 v4 and Xeon E5-2640 v3 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)
 
8 (Octa-Core)
Threads
12
 
16
Base clock speed
3.4 GHz
 
2.6 GHz
Boost clock speed
3.7 GHz
 
3.4 GHz
Bus support
2 × 9.6 GT/s
 
no data
L2 cache
1.5 MB
 
no data
L3 cache
20 MB
 
20 MB Intel® Smart Cache
Chip lithography
14 nm
 
22 nm
Die size
246.24 mm2
 
no data
Maximum core temperature
75 °C
 
74 °C
Number of transistors
3200 Million
 
no data
64 bit support
+
 
+
VID voltage range
no data
 
0.65V–1.3V

Compatibility

Information on Xeon E5-2643 v4 and Xeon E5-2640 v3 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
 
2
Socket
FCLGA2011-3
 
FCLGA2011-3
Thermal design power (TDP)
135 Watt
 
90 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2643 v4 and Xeon E5-2640 v3. You'll probably need this information if you require some particular technology.

Instruction set extensions
Intel® AVX2
 
Intel® AVX2
AES-NI
+
 
+
AVX
+
 
-
vPro
+
 
+
Enhanced SpeedStep (EIST)
+
 
+
Turbo Boost Technology
2.0
 
2.0
Hyper-Threading Technology
+
 
+
TSX
+
 
-
Idle States
+
 
+
Thermal Monitoring
+
 
+
Flex Memory Access
-
 
-
Demand Based Switching
+
 
+
PAE
46 Bit
 
46 Bit

Security technologies

Xeon E5-2643 v4 and Xeon E5-2640 v3 technologies aimed at improving security, for example, by protecting against hacks.

TXT
+
 
+
EDB
+
 
+
Secure Key
+
 
+
OS Guard
+
 
+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2643 v4 and Xeon E5-2640 v3 are enumerated here.

VT-d
+
 
+
VT-x
+
 
+
EPT
+
 
+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2643 v4 and Xeon E5-2640 v3. Depending on the motherboards, higher memory frequencies may be supported.

Supported memory types
DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400
 
DDR4-1600, DDR4-1866
Maximum memory size
1.5 TB
 
768 GB
Max memory channels
4
 
4
Maximum memory bandwidth
76.8 GB/s
 
59 GB/s
ECC memory support
+
 
+

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2643 v4 and Xeon E5-2640 v3.

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 E5-2643 v4 12.71
Xeon E5-2640 v3 12.75 +0.3%

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 E5-2643 v4 11152
Xeon E5-2640 v3 11193 +0.4%

Gaming performance

Let's see how good Xeon E5-2643 v4 and Xeon E5-2640 v3 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 100% recommended requirements of all games known to us.

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

Advantages of Intel Xeon E5-2643 v4

Much newer (20 June 2016 vs 1 July 2014)

Finer manufacturing process technology (14 vs 22 nm)

AVX (Advanced Vector Extensions - a set of SIMD instructions working with 128- and 256-bit registers)

AVX2 (Advanced Vector Extensions 2 - an extension to AVX, the set of SIMD instructions working with 128- and 256-bit registers)

AES (Advanced Encryption Standard instructions set - hardware acceleration of AES encryption and decryption. Speeds up encryption software, e.g. Veracrypt)

TXT (Trusted Execution Technology - protects the system against viruses and rootkits residing in BIOS or in a boot sector)

vPro (a marketing umbrella term for several Intel technologies: AMT, TXT, EDB, VT, Anti-Theft and some others)

TransactionalSynchronizationExtensionVersion

Advantages of Intel Xeon E5-2640 v3

0.3% better performance in benchmarks

Cheaper ($494 vs $2479)

Lower power consumption (90W vs 135W), meaning that the rival with higher TDP might require a better cooler or other thermal solution.

So, which one is the better CPU?

Technical City couldn't decide between Intel Xeon E5-2643 v4 and Intel Xeon E5-2640 v3. The differences in performance seem too small.

Should you still have questions on choice between Xeon E5-2643 v4 and Xeon E5-2640 v3, ask them in Comments section, and we shall answer.

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Intel Xeon E5-2643 v4
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