Intel Xeon E5-2640 v3 vs Intel Xeon E5-2643 v3. Specifications, performance, tests

Background information about the processors being compared, series, generation and market segment.

• Segment
  Desktop / Server Desktop / Server
• Family
  Intel Xeon E5 Intel Xeon E5
• Generation
  5 5
• CPU group
  Intel Xeon E5 v3 Intel Xeon E5 v3
• Predecessor
  Intel Xeon E5-2640 v2 --
• Successor
  Intel Xeon E5-2640 v4 Intel Xeon E5-2643 v4

Basic parameters such as number of cores, number of threads, base and turbo frequency, and cache size. These parameters indirectly tell about the speed of the processor, the higher they are the better.

• Frequency
  2.60 GHz 3.40 GHz
• CPU Cores
  8 6
• Turbo (1 Core)
  3.40 GHz 3.70 GHz
• CPU Threads
  16 12
• Hyperthreading
  Yes Yes
• Overclocking
  No No
• Core architecture
  normal normal

Internal Graphics does not affect the performance of the CPU, performs the work of the graphics card in its absence or on mobile devices.

• GPU name
  no iGPU no iGPU
• GPU (Turbo)
  No turbo No turbo

Built-in codecs used to encode and decode content. Significantly speeds up the required operations.

• h265 / HEVC (8 bit)
  No No
• h265 / HEVC (10 bit)
  No No
• h264
  No No
• VP9
  No No
• VP8
  No No
• AV1
  No No
• AVC
  No No
• VC-1
  No No
• JPEG
  No No

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

• Memory type
  DDR4-2133 DDR4-2133
• ECC
  Yes Yes
• Memory channels
  4 4
• PCIe version
  3.0 3.0
• PCIe lanes
  40 40

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Xeon E5-2640 v3 and Intel Xeon E5-2643 v3 to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  90 W 135 W

Architecture, interfaces, additional instructions supported by Intel Xeon E5-2640 v3 and Intel Xeon E5-2640 v3, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d
• ISA extensions
  SSE4.1, SSE4.2, AVX2 SSE4.1, SSE4.2, AVX2
• L3-Cache
  20.00 MB 20.00 MB
• Architecture
  Haswell E Haswell E
• Technology
  22 nm 22 nm
• Socket
  LGA 2011-3 LGA 2011-3
• Release date
  Q3/2014 Q3/2014