Atom x7835RE vs i5-10400

Place in the ranking	959	1176
Place by popularity	87	not in top-100
Market segment	Desktop processor	Laptop
Power efficiency	11.11	41.70
Architecture codename	Comet Lake (2020)	Amston Lake (2024)
Release date	30 April 2020 (4 years ago)	8 April 2024 (less than a year ago)
Launch price (MSRP)	no data	$127

Detailed specifications

Core i5-10400 and Atom x7835RE 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	6 (Hexa-Core)	8 (Octa-Core)
Threads	12	8
Base clock speed	2.9 GHz	1.3 GHz
Boost clock speed	4.3 GHz	3.6 GHz
Bus rate	8 GT/s	no data
L1 cache	64K (per core)	96 KB (per core)
L2 cache	256K (per core)	2 MB (per module)
L3 cache	12 MB (shared)	6 MB (shared)
Chip lithography	14 nm	10 nm
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Core i5-10400 and Atom x7835RE 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	FCLGA1200	Intel BGA 1264
Power consumption (TDP)	65 Watt	12 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-10400 and Atom x7835RE. You'll probably need this information if you require some particular technology.

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

Security technologies

Core i5-10400 and Atom x7835RE technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
Secure Key	+	no data
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-10400 and Atom x7835RE are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-10400 and Atom x7835RE. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4, DDR5
Maximum memory size	128 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	41.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

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

Graphics interfaces

Available interfaces and connections of Core i5-10400 and Atom x7835RE integrated GPUs.

Number of displays supported

no data

Graphics image quality

Maximum display resolutions supported by Core i5-10400 and Atom x7835RE integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096 x 2160@30Hz	no data
Max resolution over eDP	4096 x 2304@60Hz	no data
Max resolution over DisplayPort	4096 x 2304@60Hz	no data

Graphics API support

APIs supported by Core i5-10400 and Atom x7835RE integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Core i5-10400 and Atom x7835RE.

PCIe version	3.0	3.0
PCI Express lanes	16	9

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.

i5-10400 7.66
+44.3%

Atom x7835RE 5.31

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.

i5-10400 12115
+44.2%

Atom x7835RE 8400

Gaming performance

Pros & cons summary

Performance score	7.66	5.31
Recency	30 April 2020	8 April 2024
Physical cores	6	8
Threads	12	8
Chip lithography	14 nm	10 nm
Power consumption (TDP)	65 Watt	12 Watt

i5-10400 has a 44.3% higher aggregate performance score, and 50% more threads.

Atom x7835RE, on the other hand, has an age advantage of 3 years, 33.3% more physical cores, a 40% more advanced lithography process, and 441.7% lower power consumption.

The Core i5-10400 is our recommended choice as it beats the Atom x7835RE in performance tests.

Note that Core i5-10400 is a desktop processor while Atom x7835RE is a notebook one.

Should you still have questions on choice between Core i5-10400 and Atom x7835RE, ask them in Comments section, and we shall answer.