Steam Deck OLED APU vs i5-8259U

Primary details

Comparing Core i5-8259U and Steam Deck OLED APU processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1235	1303
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i5	Renoir (Ryzen 4000 APU)
Power efficiency	16.76	28.96
Architecture codename	Coffee Lake-U (2018−2019)	Van Gogh (Custom) (2023)
Release date	2 April 2018 (6 years ago)	9 November 2023 (1 year ago)
Launch price (MSRP)	$320	no data

Detailed specifications

Core i5-8259U and Steam Deck OLED APU 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)	4 (Quad-Core)
Threads	8	8
Base clock speed	2.3 GHz	2.4 GHz
Boost clock speed	3.8 GHz	3.5 GHz
Bus type	OPI	no data
Bus rate	4 GT/s	no data
Multiplier	23	no data
L1 cache	256 KB	256 KB
L2 cache	1 MB	2 MB
L3 cache	6 MB (shared)	4 MB
Chip lithography	14 nm	6 nm
Die size	126 mm2	no data
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 i5-8259U and Steam Deck OLED APU 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)	no data
Socket	FCBGA1528	no data
Power consumption (TDP)	28 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-8259U and Steam Deck OLED APU. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI	+	+
FMA	-	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	no data
eDRAM	128 MB	no data
Speed Shift	+	no data
My WiFi	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data

Security technologies

Core i5-8259U and Steam Deck OLED APU technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-8259U and Steam Deck OLED APU are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-8259U and Steam Deck OLED APU. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4
Maximum memory size	32 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	38.397 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel Iris Plus Graphics 655	AMD Radeon Steam Deck 8CU (1000 - 1600 MHz)
Max video memory	32 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	1.05 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i5-8259U and Steam Deck OLED APU integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core i5-8259U and Steam Deck OLED APU integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@30Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data

Graphics API support

APIs supported by Core i5-8259U and Steam Deck OLED APU 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 i5-8259U and Steam Deck OLED APU.

PCIe version	3.0	no data
PCI Express lanes	16	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.

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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.

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Pros & cons summary

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Performance score	4.96	4.59
Recency	2 April 2018	9 November 2023
Chip lithography	14 nm	6 nm
Power consumption (TDP)	28 Watt	15 Watt

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Should you still have questions on choice between Core i5-8259U and Steam Deck OLED APU, ask them in Comments section, and we shall answer.

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