i5-10400T vs i5-8350U

Place in the ranking	1450	1091
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core i5	no data
Power efficiency	24.54	16.49
Architecture codename	Kaby Lake Refresh (2017−2019)	no data
Release date	21 August 2017 (7 years ago)	1 April 2020 (4 years ago)
Launch price (MSRP)	$297	no data

Detailed specifications

Core i5-8350U and Core i5-10400T 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	4 (Quad-Core)	6 (Hexa-Core)
Threads	8	12
Base clock speed	1.7 GHz	2 GHz
Boost clock speed	3.6 GHz	3.6 GHz
Bus type	OPI	no data
Bus rate	4 GT/s	8 GT/s
Multiplier	17	no data
L1 cache	64K (per core)	no data
L2 cache	256K (per core)	no data
L3 cache	6 MB (shared)	12 MB Intel® Smart Cache
Chip lithography	14 nm	14 nm
Die size	123 mm²	no data
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	+

Compatibility

Information on Core i5-8350U and Core i5-10400T 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	FCBGA1356,FC-BGA1356	FCLGA1200
Power consumption (TDP)	15 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-8350U and Core i5-10400T. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
My WiFi	+	no data
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
SIPP	+	-
Smart Response	+	no data
Turbo Boost Max 3.0	no data	-

Security technologies

Core i5-8350U and Core i5-10400T technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+
Secure Key	+	+
Identity Protection	+	+
SGX	Yes with Intel® ME	Yes with Intel® ME
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-8350U and Core i5-10400T are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-8350U and Core i5-10400T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4-2666
Maximum memory size	32 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	38.397 GB/s	41.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel UHD Graphics 620	Intel UHD Graphics 630
Max video memory	32 GB	64 GB
Quick Sync Video	+	+
Clear Video	+	+
Clear Video HD	+	+
Graphics max frequency	1.1 GHz	1.1 GHz
InTru 3D	no data	+

Graphics interfaces

Available interfaces and connections of Core i5-8350U and Core i5-10400T integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core i5-8350U and Core i5-10400T integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	+
Max resolution over HDMI 1.4	4096x2304@24Hz	4096 x 2160@30Hz
Max resolution over eDP	4096x2304@60Hz	4096 x 2304@60Hz
Max resolution over DisplayPort	4096x2304@60Hz	4096 x 2304@60Hz

Graphics API support

APIs supported by Core i5-8350U and Core i5-10400T integrated GPUs, sometimes API versions are included.

DirectX	12	12
OpenGL	4.4	4.5

Peripherals

Specifications and connection of peripherals supported by Core i5-8350U and Core i5-10400T.

PCIe version	3.0	3.0
PCI Express lanes	12	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.

i5-8350U 3.91

i5-10400T 6.13
+56.8%

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.

i5-8350U 6209

i5-10400T 9744
+56.9%

Gaming performance

Pros & cons summary

Performance score	3.91	6.13
Integrated graphics card	2.67	3.09
Recency	21 August 2017	1 April 2020
Physical cores	4	6
Threads	8	12
Power consumption (TDP)	15 Watt	35 Watt

i5-8350U has 133.3% lower power consumption.

i5-10400T, on the other hand, has a 56.8% higher aggregate performance score, 15.7% faster integrated GPU, an age advantage of 2 years, and 50% more physical cores and 50% more threads.

The Core i5-10400T is our recommended choice as it beats the Core i5-8350U in performance tests.

Be aware that Core i5-8350U is a notebook processor while Core i5-10400T is a desktop one.

Should you still have questions on choice between Core i5-8350U and Core i5-10400T, ask them in Comments section, and we shall answer.