Xeon E5-2666 V3 vs E-2278G

VS

Aggregate performance score

Xeon E-2278G
2019
8 cores / 16 threads, 80 Watt
10.79
+21%
Xeon E5-2666 V3
2014
10 cores / 20 threads, 135 Watt
8.92

Xeon E-2278G outperforms Xeon E5-2666 V3 by a significant 21% based on our aggregate benchmark results.

Primary details

Comparing Xeon E-2278G and Xeon E5-2666 V3 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking725866
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation27.97no data
Market segmentServerServer
SeriesIntel Xeon Eno data
Power efficiency10.756.25
Architecture codenameCoffee Lake-S WS (2018−2019)Haswell-EP (2014−2015)
Release date27 May 2019 (5 years ago)13 November 2014 (10 years ago)
Launch price (MSRP)$494no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon E-2278G and Xeon E5-2666 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 cores8 (Octa-Core)10 (Deca-Core)
Threads1620
Base clock speed3.4 GHz2.9 GHz
Boost clock speed5 GHz3.5 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/sno data
Multiplier34no data
L1 cache512 KB64K (per core)
L2 cache2 MB256K (per core)
L3 cache16 MB (shared)25 MB (shared)
Chip lithography14 nm22 nm
Die size174 mm2356 mm2
Maximum core temperature100 °Cno data
Maximum case temperature (TCase)73 °Cno data
Number of transistorsno data2,600 million
64 bit support++
Windows 11 compatibility+no data

Compatibility

Information on Xeon E-2278G and Xeon E5-2666 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 configuration1 (Uniprocessor)2
SocketFCLGA11512011-3
Power consumption (TDP)80 Watt135 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E-2278G and Xeon E5-2666 V3. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2no data
AES-NI++
AVX++
vPro++
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX++
Idle States+no data
Thermal Monitoring+-

Security technologies

Xeon E-2278G and Xeon E5-2666 V3 technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB+no data
Secure Key+no data
MPX+-
SGXYes with both Intel® SPS and Intel® MEno data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E-2278G and Xeon E5-2666 V3 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E-2278G and Xeon E5-2666 V3. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666DDR3, DDR4 2133 MHz Quad-channel
Maximum memory size128 GBno data
Max memory channels2no data
Maximum memory bandwidth42.671 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel UHD Graphics P630no data
Max video memory128 GBno data
Quick Sync Video+-
Clear Video+no data
Clear Video HD+no data
Graphics max frequency1.2 GHzno data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Xeon E-2278G and Xeon E5-2666 V3 integrated GPUs.

Number of displays supported3no data

Graphics image quality

Maximum display resolutions supported by Xeon E-2278G and Xeon E5-2666 V3 integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2160@24Hzno data
Max resolution over eDP4096x2304@60Hzno data
Max resolution over DisplayPort4096x2304@60Hzno data
Max resolution over VGAN/Ano data

Graphics API support

APIs supported by Xeon E-2278G and Xeon E5-2666 V3 integrated GPUs, sometimes API versions are included.

DirectX12no data
OpenGL4.5no data

Peripherals

Specifications and connection of peripherals supported by Xeon E-2278G and Xeon E5-2666 V3.

PCIe version3.03.0
PCI Express lanes1640

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 E-2278G 10.79
+21%
Xeon E5-2666 V3 8.92

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 E-2278G 17145
+21%
Xeon E5-2666 V3 14167

Gaming performance

Pros & cons summary


Performance score 10.79 8.92
Recency 27 May 2019 13 November 2014
Physical cores 8 10
Threads 16 20
Chip lithography 14 nm 22 nm
Power consumption (TDP) 80 Watt 135 Watt

Xeon E-2278G has a 21% higher aggregate performance score, an age advantage of 4 years, a 57.1% more advanced lithography process, and 68.8% lower power consumption.

Xeon E5-2666 V3, on the other hand, has 25% more physical cores and 25% more threads.

The Xeon E-2278G is our recommended choice as it beats the Xeon E5-2666 V3 in performance tests.


Should you still have questions on choice between Xeon E-2278G and Xeon E5-2666 V3, ask them in Comments section, and we shall answer.

Vote for your favorite

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


Intel Xeon E-2278G
Xeon E-2278G
Intel Xeon E5-2666 V3
Xeon E5-2666 V3

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


4.1 15 votes

Rate Xeon E-2278G on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.4 3192 votes

Rate Xeon E5-2666 V3 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Xeon E-2278G or Xeon E5-2666 V3, agree or disagree with our judgements, or report an error or mismatch.