Intel Xeon E3-1275 v5 vs Intel Xeon E3-1280 v5. Specifications, performance, tests

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

• Segment
  Desktop / Server Desktop / Server
• Family
  Intel Xeon E3 Intel Xeon E3
• Generation
  5 5
• CPU group
  Intel Xeon E3 v5 Intel Xeon E3 v5

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
  3.60 GHz 3.70 GHz
• CPU Cores
  4 4
• Turbo (1 Core)
  4.00 GHz 4.00 GHz
• CPU Threads
  8 8
• Turbo (4 Cores)
  3.80 GHz 3.90 GHz
• 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
  Intel HD Graphics P530 no iGPU
• GPU frequency
  0.40 GHz
• GPU (Turbo)
  1.15 GHz No turbo
• Execution units
  24
• Shader
  192
• Max. displays
  3
• Generation
  9
• DirectX Version
  12
• Technology
  14 nm
• Release date
  Q3/2015

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

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

Types, channel quantity of RAM supported by Intel Xeon E3-1280 v5 and Intel Xeon E3-1275 v5. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-2133 DDR4-2133
• ECC
  Yes Yes
• Memory channels
  2 2
• PCIe version
  3.0 3.0
• PCIe lanes
  16 16

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Xeon E3-1275 v5 and Intel Xeon E3-1280 v5 to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  80 W 80 W

Architecture, interfaces, additional instructions supported by Intel Xeon E3-1275 v5 and Intel Xeon E3-1275 v5, 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
  8.00 MB 8.00 MB
• Architecture
  Skylake S Skylake S
• Technology
  14 nm 14 nm
• Socket
  LGA 1151 LGA 1151
• Release date
  Q4/2015 Q4/2015