i7-4940MX vs i9-10900X

Place in the ranking	514	1355
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	no data	Intel Core i7
Power efficiency	8.12	7.14
Architecture codename	Cascade Lake-X (2019)	Haswell (2013−2015)
Release date	19 October 2019 (5 years ago)	20 January 2014 (10 years ago)
Launch price (MSRP)	no data	$1,096

Detailed specifications

Core i9-10900X and Core i7-4940MX 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 cores	10 (Deca-Core)	4 (Quad-Core)
Threads	20	8
Base clock speed	3.7 GHz	3.1 GHz
Boost clock speed	4.7 GHz	4 GHz
Bus rate	8 GT/s DMI3 MHz	5 GT/s
L1 cache	64K (per core)	64K (per core)
L2 cache	1 MB (per core)	256K (per core)
L3 cache	19.25 MB (shared)	8 MB (shared)
Chip lithography	14 nm	22 nm
Die size	no data	177 mm²
Maximum core temperature	94 °C	100 °C
Maximum case temperature (TCase)	no data	100 °C
Number of transistors	no data	1,400 million
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	+	+

Compatibility

Information on Core i9-10900X and Core i7-4940MX 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 configuration	1	1
Socket	FCLGA2066	FCPGA946
Power consumption (TDP)	165 Watt	57 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-10900X and Core i7-4940MX. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Idle States	no data	+
Thermal Monitoring	-	+
Turbo Boost Max 3.0	+	no data
FDI	no data	+
Deep Learning Boost	+	-

Security technologies

Core i9-10900X and Core i7-4940MX technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	no data	+
Identity Protection	-	+
Anti-Theft	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-10900X and Core i7-4940MX are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-10900X and Core i7-4940MX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2933	DDR3
Maximum memory size	256 GB	32 GB
Max memory channels	4	2
Maximum memory bandwidth	94 GB/s	25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel HD Graphics 4600
Max video memory	no data	1.7 GB
Quick Sync Video	-	+
Clear Video HD	no data	+
Graphics max frequency	no data	1.35 GHz
InTru 3D	no data	+

Graphics interfaces

Available interfaces and connections of Core i9-10900X and Core i7-4940MX integrated GPUs.

Number of displays supported	no data	3
eDP	no data	+
DisplayPort	-	+
HDMI	-	+
VGA	no data	+

Peripherals

Specifications and connection of peripherals supported by Core i9-10900X and Core i7-4940MX.

PCIe version	3.0	3
PCI Express lanes	48	16

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.

i9-10900X 14.42
+229%

i7-4940MX 4.38

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.

i9-10900X 22471
+229%

i7-4940MX 6830

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i9-10900X 1587
+28.3%

i7-4940MX 1237

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i9-10900X 9599
+140%

i7-4940MX 4001

Gaming performance

Pros & cons summary

Performance score	14.42	4.38
Recency	19 October 2019	20 January 2014
Physical cores	10	4
Threads	20	8
Chip lithography	14 nm	22 nm
Power consumption (TDP)	165 Watt	57 Watt

i9-10900X has a 229.2% higher aggregate performance score, an age advantage of 5 years, 150% more physical cores and 150% more threads, and a 57.1% more advanced lithography process.

i7-4940MX, on the other hand, has 189.5% lower power consumption.

The Core i9-10900X is our recommended choice as it beats the Core i7-4940MX in performance tests.

Note that Core i9-10900X is a desktop processor while Core i7-4940MX is a notebook one.

Should you still have questions on choice between Core i9-10900X and Core i7-4940MX, ask them in Comments section, and we shall answer.