Intel Core i7-6785R vs Intel Core i7-4940MX

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-6785R or Intel Core i7-6785R – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core i7-6785R features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q2/2016 and belongs to the 6 generation of the Intel Core i7 series.
To use the Intel Core i7-6785R, you'll need a motherboard with a BGA 1440 socket.
The Intel Core i7-4940MX features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q4/2013 and belongs to the 4 generation of the Intel Core i7 Extreme Edition series.
To use the Intel Core i7-4940MX, you'll need a motherboard with a PGA 946 socket.
Intel Core i 6000 Group Intel Core i 4000M/4000H
6 Generation 4
Desktop / Server Segment Mobile
Intel Core i7-6785R Name Intel Core i7-4940MX
Intel Core i7 Family Intel Core i7 Extreme Edition
 
 

CPU Cores and Base Frequency

The Intel Core i7-6785R has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-6785R is 3.3 GHz
and turbo frequency for one core is 3.9 GHz.
The Intel Core i7-4940MX has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-4940MX is 3.1 GHz
8 Threads 8
4x Cores 4x
4 CPU Cores 4
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking Yes
3.9 GHz Turbo Frequency (1 core) 3.9 GHz
3.3 GHz Frequency 3.1 GHz
3.5 GHz Turbo Frequency (all cores) 3.9 GHz
 
 

Internal Graphics

The Intel Core i7-6785R has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-6785R uses the Intel Iris Pro Graphics 580, which has 576 texture shaders
and 72 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i7-4940MX has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-4940MX uses the Intel HD Graphics 4600, which has 160 texture shaders
and 20 execution units.
576 Shaders 160
Q3/2015 Release date Q2/2013
14 nm Technology 22 nm
12.0 Direct X 11.1
32.0 GB Max. GPU Memory 2.0 GB
-- Max. displays --
72 Execution units 20
0.35 GHz GPU frequency 0.4 GHz
9 Generation 7.5
1.15 GHz GPU (Turbo) 1.35 GHz
Intel Iris Pro Graphics 580 GPU name Intel HD Graphics 4600
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
Decode / Encode VP8 No
Decode VC-1 Decode
Decode / Encode JPEG Decode
No AV1 No
Decode / Encode h265 / HEVC (8 bit) No
Decode / Encode AVC Decode / Encode
Decode / Encode h264 Decode / Encode
Decode VP9 No
Decode h265 / HEVC (10 bit) No
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 34.1 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 32.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 25.6 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
pci PCIe pci
Yes AES-NI Yes
DDR4-2133 Memory type DDR3L-1600
No ECC No
64.0 GB Max. Memory 32.0 GB
2 Memory channels 2
34.1 GB/s Bandwidth 25.6 GB/s
 
 

Thermal Management

The processor has a thermal design power (TDP) of 65 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 57 W watts.
65 W TDP (PL1 / PBP) 57 W
-- Tjunction max --
 
 

Technical details

The Intel Core i7-6785R is manufactured using a 14 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 8.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-4940MX is manufactured using a 22 nm process.
Q2/2016 Release date Q4/2013
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
14 nm Technology 22 nm
Monolithic Chip design Monolithic
-- Release price 975 $
Skylake S Architecture Haswell H
8.0 MB L3-Cache 8.0 MB
Windows 10, Linux Operating systems Windows 10, Linux
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- Part Number --
BGA 1440 Socket PGA 946
0 bytes L2-Cache 0 bytes
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

Intel Core i7-6785R
4C 8T @ 3.3 GHz
15034
15034
Intel Core i7-4940MX
4C 8T @ 3.1 GHz
12401
12401

Geekbench 3, 64bit (Single-Core)

Intel Core i7-4940MX
4C 8T @ 3.1 GHz
4260
4260
Intel Core i7-6785R
4C 8T @ 3.3 GHz
4126
4126

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-6785R
4C 8T @ 3.3 GHz
3615
3615
Intel Core i7-4940MX
4C 8T @ 3.1 GHz
3538
3538