Ryzen 5 8645HS vs i9-13905H

Place in the ranking	304	499
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Power efficiency	40.00	30.24
Architecture codename	Raptor Lake-H (2023)	Hawk Point-HS (Zen 4) (2023−2024)
Release date	4 January 2023 (1 year ago)	6 December 2023 (less than a year ago)
Launch price (MSRP)	$697	no data

Detailed specifications

Core i9-13905H and Ryzen 5 8645HS 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	14 (Tetradeca-Core)	6 (Hexa-Core)
Threads	20	12
Base clock speed	2.6 GHz	4.3 GHz
Boost clock speed	5.4 GHz	5 GHz
L1 cache	80K (per core)	64 KB (per core)
L2 cache	2 MB (per core)	1 MB (per core)
L3 cache	24 MB (shared)	16 MB (shared)
Chip lithography	Intel 7 nm	4 nm
Die size	257 mm²	178 mm²
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	no data	25,000 million
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Core i9-13905H and Ryzen 5 8645HS 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	FCBGA1792	FP8
Power consumption (TDP)	45 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-13905H and Ryzen 5 8645HS. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Ryzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Turbo Boost Max 3.0	+	no data
Precision Boost 2	no data	+
Deep Learning Boost	+	-

Security technologies

Core i9-13905H and Ryzen 5 8645HS technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-13905H and Ryzen 5 8645HS 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 i9-13905H and Ryzen 5 8645HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-5200, DDR4-3200, LPDDR4x-4267	DDR5
Maximum memory size	64 GB	no data
Max memory channels	2	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® Iris® Xe Graphics eligible	AMD Radeon 760M ( - 2600 MHz)
Quick Sync Video	+	-
Graphics max frequency	1.5 GHz	no data
Execution Units	96	no data

Graphics interfaces

Available interfaces and connections of Core i9-13905H and Ryzen 5 8645HS integrated GPUs.

Number of displays supported

no data

Graphics image quality

Maximum display resolutions supported by Core i9-13905H and Ryzen 5 8645HS integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096 x 2304 @ 60Hz	no data
Max resolution over eDP	4096 x 2304 @ 120Hz	no data
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	no data

Graphics API support

APIs supported by Core i9-13905H and Ryzen 5 8645HS integrated GPUs, sometimes API versions are included.

DirectX	12.1	no data
OpenGL	4.6	no data

Peripherals

Specifications and connection of peripherals supported by Core i9-13905H and Ryzen 5 8645HS.

PCIe version	5.0	4.0
PCI Express lanes	8	20

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.

i9-13905H 19.02
+32.3%

Ryzen 5 8645HS 14.38

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.

i9-13905H 30207
+32.2%

Ryzen 5 8645HS 22841

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

i9-13905H 2857
+36.4%

Ryzen 5 8645HS 2094

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

i9-13905H 246

Ryzen 5 8645HS 270
+9.8%