Ultra 9 285K vs Pentium J4205

Place in the ranking	2134	50
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.12	70.90
Market segment	Desktop processor	Desktop processor
Series	Intel Pentium	no data
Power efficiency	14.29	32.79
Architecture codename	Goldmont (2016−2017)	Arrow Lake-S (2024−2025)
Release date	30 August 2016 (8 years ago)	24 October 2024 (less than a year ago)
Launch price (MSRP)	$161	$589

Cost-effectiveness evaluation

Performance per price, higher is better.

Ultra 9 285K has 58983% better value for money than Pentium J4205.

Detailed specifications

Pentium J4205 and Core Ultra 9 285K 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)	24 (Tetracosa-Core)
Threads	4	24
Base clock speed	1.5 GHz	3.7 GHz
Boost clock speed	2.6 GHz	5.7 GHz
Bus rate	no data	250 MHz
Multiplier	15	no data
L1 cache	no data	112 KB (per core)
L2 cache	2 MB	3 MB (per core)
L3 cache	0 KB	36 MB (shared)
Chip lithography	14 nm	3 nm
Die size	no data	243 mm²
Maximum core temperature	105 °C	no data
Number of transistors	no data	17,800 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	-	+

Compatibility

Information on Pentium J4205 and Core Ultra 9 285K 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	FCBGA1296	1851
Power consumption (TDP)	10 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium J4205 and Core Ultra 9 285K. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Smart Response	-	no data
GPIO	+	no data
Smart Connect	-	no data
HD Audio	+	no data
RST	-	no data

Security technologies

Pentium J4205 and Core Ultra 9 285K technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium J4205 and Core Ultra 9 285K are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium J4205 and Core Ultra 9 285K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3L/LPDDR3 up to 1866 MT/s; LPDDR4 up to 2400 MT/s	DDR5 Depends on motherboard
Maximum memory size	8 GB	no data
Max memory channels	2	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 505	Arc Xe-LPG Graphics 64EU
Max video memory	8 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	800 MHz	no data
Execution Units	18	no data

Graphics interfaces

Available interfaces and connections of Pentium J4205 and Core Ultra 9 285K integrated GPUs.

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

Graphics API support

APIs supported by Pentium J4205 and Core Ultra 9 285K integrated GPUs, sometimes API versions are included.

DirectX	+	no data
OpenGL	+	no data

Peripherals

Specifications and connection of peripherals supported by Pentium J4205 and Core Ultra 9 285K.

PCIe version	2.0	5.0
PCI Express lanes	6	20
USB revision	2.0/3.0	no data
Total number of SATA ports	2	no data
Max number of SATA 6 Gb/s Ports	2	no data
Number of USB ports	8	no data
Integrated LAN	-	no data
UART	+	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.

Pentium J4205 1.51

Ultra 9 285K 43.31
+2768%

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 J4205 2404

Ultra 9 285K 68800
+2762%

Gaming performance

Pros & cons summary

Performance score	1.51	43.31
Recency	30 August 2016	24 October 2024
Physical cores	4	24
Threads	4	24
Chip lithography	14 nm	3 nm
Power consumption (TDP)	10 Watt	125 Watt

Pentium J4205 has 1150% lower power consumption.

Ultra 9 285K, on the other hand, has a 2768.2% higher aggregate performance score, an age advantage of 8 years, 500% more physical cores and 500% more threads, and a 366.7% more advanced lithography process.

The Core Ultra 9 285K is our recommended choice as it beats the Pentium J4205 in performance tests.

Should you still have questions on choice between Pentium J4205 and Core Ultra 9 285K, ask them in Comments section, and we shall answer.