Atom x5-Z8300 vs Pentium G840

Place in the ranking	2604	2862
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.61	no data
Market segment	Desktop processor	Laptop
Series	no data	5x Intel Atom
Power efficiency	1.16	no data
Architecture codename	Sandy Bridge (2011−2013)	Cherry Trail (2015−2016)
Release date	22 May 2011 (13 years ago)	2 March 2015 (9 years ago)
Launch price (MSRP)	$60	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Pentium G840 and Atom x5-Z8300 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)	4 (Quad-Core)
Threads	2	4
Base clock speed	2.8 GHz	1.44 GHz
Boost clock speed	2.8 GHz	1.84 GHz
L1 cache	64 KB (per core)	no data
L2 cache	256 KB (per core)	2 MB
L3 cache	3 MB (shared)	0 KB
Chip lithography	32 nm	14 nm
Die size	131 mm²	no data
Maximum core temperature	69 °C	90 °C
Number of transistors	504 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Pentium G840 and Atom x5-Z8300 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 (Uniprocessor)
Socket	FCLGA1155	UTFCBGA592
Power consumption (TDP)	65 Watt	no data

Technologies and extensions

Technological solutions and additional instructions supported by Pentium G840 and Atom x5-Z8300. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	+	+
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Pentium G840 and Atom x5-Z8300 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data
Secure Boot	no data	+
Identity Protection	-	+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium G840 and Atom x5-Z8300 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium G840 and Atom x5-Z8300. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	32 GB	2 GB
Max memory channels	2	1
Maximum memory bandwidth	21 GB/s	12.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 2nd Generation Intel® Processors	Intel HD Graphics
Max video memory	no data	2 GB
Graphics max frequency	1.1 GHz	500 MHz
Execution Units	no data	12

Graphics interfaces

Available interfaces and connections of Pentium G840 and Atom x5-Z8300 integrated GPUs.

Number of displays supported

Graphics image quality

Maximum display resolutions supported by Pentium G840 and Atom x5-Z8300 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4

no data

1920x1080

Peripherals

Specifications and connection of peripherals supported by Pentium G840 and Atom x5-Z8300.

PCIe version	2.0	2.0
PCI Express lanes	no data	1
USB revision	no data	3.0

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.

Pentium G840 0.80
+56.9%

Atom x5-Z8300 0.51

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.

Pentium G840 1264
+55.3%

Atom x5-Z8300 814

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.

Pentium G840 452
+245%

Atom x5-Z8300 131

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.

Pentium G840 789
+123%

Atom x5-Z8300 354

Gaming performance

Pros & cons summary

Performance score	0.80	0.51
Recency	22 May 2011	2 March 2015
Physical cores	2	4
Threads	2	4
Chip lithography	32 nm	14 nm

Pentium G840 has a 56.9% higher aggregate performance score.

Atom x5-Z8300, on the other hand, has an age advantage of 3 years, 100% more physical cores and 100% more threads, and a 128.6% more advanced lithography process.

The Pentium G840 is our recommended choice as it beats the Atom x5-Z8300 in performance tests.

Note that Pentium G840 is a desktop processor while Atom x5-Z8300 is a notebook one.

Should you still have questions on choice between Pentium G840 and Atom x5-Z8300, ask them in Comments section, and we shall answer.