i5-11400 vs Atom C3338

Place in the ranking	2751	724
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.06	no data
Market segment	Server	Desktop processor
Series	Intel Atom	no data
Power efficiency	6.83	15.59
Architecture codename	Goldmont (2016−2017)	Rocket Lake (2021)
Release date	22 February 2017 (7 years ago)	16 March 2021 (3 years ago)
Launch price (MSRP)	$27	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Atom C3338 and Core i5-11400 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	2 (Dual-core)	6 (Hexa-Core)
Threads	2	12
Base clock speed	1.5 GHz	2.6 GHz
Boost clock speed	2.2 GHz	4.4 GHz
Bus rate	no data	8 GT/s
Multiplier	15	no data
L1 cache	112 KB	64K (per core)
L2 cache	4 MB	256K (per core)
L3 cache	4 MB	12 MB (shared)
Chip lithography	14 nm	14 nm
Maximum core temperature	89 °C	100 °C
Maximum case temperature (TCase)	no data	72 °C
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Atom C3338 and Core i5-11400 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 (Uniprocessor)	1
Socket	FCBGA1310	FCLGA1200
Power consumption (TDP)	8.5 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom C3338 and Core i5-11400. You'll probably need this information if you require some particular technology.

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

Security technologies

Atom C3338 and Core i5-11400 technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	+	+
Secure Boot	+	no data
Secure Key	+	+
Identity Protection	-	+
SGX	-	-
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Atom C3338 and Core i5-11400 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom C3338 and Core i5-11400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4: 1866	DDR4-3200
Maximum memory size	128 GB	128 GB
Max memory channels	1	2
Maximum memory bandwidth	14.936 GB/s	50 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel UHD Graphics 730
Max video memory	no data	64 GB
Quick Sync Video	-	+
Clear Video	no data	+
Clear Video HD	no data	+
Graphics max frequency	no data	1.3 GHz
Execution Units	no data	24
InTru 3D	no data	+

Graphics interfaces

Available interfaces and connections of Atom C3338 and Core i5-11400 integrated GPUs.

Number of displays supported

no data

Graphics image quality

Maximum display resolutions supported by Atom C3338 and Core i5-11400 integrated GPUs, including resolutions over different interfaces.

4K resolution support	no data	+
Max resolution over HDMI 1.4	no data	4096x2160@60Hz
Max resolution over eDP	no data	5120 x 3200 @60Hz
Max resolution over DisplayPort	no data	5120 x 3200 @60Hz

Graphics API support

APIs supported by Atom C3338 and Core i5-11400 integrated GPUs, sometimes API versions are included.

DirectX	no data	12.1
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Atom C3338 and Core i5-11400.

PCIe version	3	4.0
PCI Express lanes	10	20
USB revision	3	no data
Total number of SATA ports	10	no data
Max number of SATA 6 Gb/s Ports	10	no data
Number of USB ports	8	no data
Integrated LAN	4x2.5/1 GBE	no data

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.

Atom C3338 0.65

i5-11400 10.71
+1548%

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.

Atom C3338 1028

i5-11400 17006
+1554%

Gaming performance

Pros & cons summary

Performance score	0.65	10.71
Recency	22 February 2017	16 March 2021
Physical cores	2	6
Threads	2	12
Power consumption (TDP)	8 Watt	65 Watt

Atom C3338 has 712.5% lower power consumption.

i5-11400, on the other hand, has a 1547.7% higher aggregate performance score, an age advantage of 4 years, and 200% more physical cores and 500% more threads.

The Core i5-11400 is our recommended choice as it beats the Atom C3338 in performance tests.

Be aware that Atom C3338 is a server/workstation processor while Core i5-11400 is a desktop one.

Should you still have questions on choice between Atom C3338 and Core i5-11400, ask them in Comments section, and we shall answer.