Pentium Gold 6405U vs i7-940XM

#ad 
Buy on Amazon
VS

Aggregate performance score

Core i7-940XM
2010
4 cores / 8 threads, 55 Watt
1.39
Pentium Gold 6405U
2019
2 cores / 4 threads, 15 Watt
1.72
+23.7%

Pentium Gold 6405U outperforms Core i7-940XM by a significant 24% based on our aggregate benchmark results.

Primary details

Comparing Core i7-940XM and Pentium Gold 6405U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking22282047
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i7Intel Comet Lake
Power efficiency2.3910.85
Architecture codenameClarksfield (2009−2010)Comet Lake-U (2019−2020)
Release date20 June 2010 (14 years ago)31 October 2019 (5 years ago)
Launch price (MSRP)$1,096$161

Detailed specifications

Core i7-940XM and Pentium Gold 6405U 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 cores4 (Quad-Core)2 (Dual-core)
Threads84
Base clock speed2.13 GHz2.4 GHz
Boost clock speed3.33 GHz2.4 GHz
Bus rate2500 MHz4 GT/s
L1 cache64 KB (per core)256 KB
L2 cache256 KB (per core)1 MB
L3 cache8 MB (shared)2 MB
Chip lithography45 nm14 nm
Die size296 mm2no data
Maximum core temperature100 °C100 °C
Number of transistors774 millionno data
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier+-

Compatibility

Information on Core i7-940XM and Pentium Gold 6405U 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 configuration11
SocketFCPGA988,PGA988FCBGA1528
Power consumption (TDP)55 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-940XM and Pentium Gold 6405U. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2Intel® SSE4.1, Intel® SSE4.2
AES-NI-+
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
Turbo Boost Technology+-
Hyper-Threading Technology++
Idle States++
Thermal Monitoring++
Flex Memory Accessno data+
Demand Based Switching-no data
PAE36 Bitno data

Security technologies

Core i7-940XM and Pentium Gold 6405U technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDB++
Secure Keyno data+
Identity Protection-+
SGXno dataYes with Intel® ME
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-940XM and Pentium Gold 6405U are enumerated here.

AMD-V-+
VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-940XM and Pentium Gold 6405U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3-1066, DDR3-1333DDR4
Maximum memory size8 GB64 GB
Max memory channels22
Maximum memory bandwidth21 GB/s37.5 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardNoneIntel UHD Graphics for 10th Gen Intel Processors
Max video memoryno data32 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data950 MHz

Graphics interfaces

Available interfaces and connections of Core i7-940XM and Pentium Gold 6405U integrated GPUs.

Number of displays supportedno data3
eDPno data+
DisplayPort-+
HDMI-+
DVIno data+

Graphics image quality

Maximum display resolutions supported by Core i7-940XM and Pentium Gold 6405U integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.4no data4096x2304@24Hz
Max resolution over eDPno data4096x2304@60Hz
Max resolution over DisplayPortno data4096x2304@60Hz

Graphics API support

APIs supported by Core i7-940XM and Pentium Gold 6405U integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.5

Peripherals

Specifications and connection of peripherals supported by Core i7-940XM and Pentium Gold 6405U.

PCIe version22.0
PCI Express lanes1612

Gaming performance

Pros & cons summary


Performance score 1.39 1.72
Recency 20 June 2010 31 October 2019
Physical cores 4 2
Threads 8 4
Chip lithography 45 nm 14 nm
Power consumption (TDP) 55 Watt 15 Watt

i7-940XM has 100% more physical cores and 100% more threads.

Pentium Gold 6405U, on the other hand, has a 23.7% higher aggregate performance score, an age advantage of 9 years, a 221.4% more advanced lithography process, and 266.7% lower power consumption.

The Pentium Gold 6405U is our recommended choice as it beats the Core i7-940XM in performance tests.


Should you still have questions on choice between Core i7-940XM and Pentium Gold 6405U, 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 Core i7-940XM
Core i7-940XM
Intel Pentium Gold 6405U
Pentium Gold 6405U

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.


3.2 63 votes

Rate Core i7-940XM on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
2.8 397 votes

Rate Pentium Gold 6405U on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core i7-940XM or Pentium Gold 6405U, agree or disagree with our judgements, or report an error or mismatch.