Ryzen 9 7940HX vs Ryzen 9 7945HX3D

Place in the ranking	98	111
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	AMD Dragon Range (Zen 4, Ryzen 7045)	AMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency	61.88	58.76
Architecture codename	Dragon Range-HX (Zen 4) (2023−2024)	Dragon Range-HX (Zen 4) (2023−2024)
Release date	27 July 2023 (1 year ago)	17 January 2024 (less than a year ago)

Detailed specifications

Ryzen 9 7945HX3D and Ryzen 9 7940HX 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	16 (Hexadeca-Core)	16 (Hexadeca-Core)
Threads	32	32
Base clock speed	2.3 GHz	2.4 GHz
Boost clock speed	5.4 GHz	5.2 GHz
L1 cache	64 KB (per core)	1 MB
L2 cache	1 MB (per core)	16 MB
L3 cache	128 MB (shared)	64 MB
Chip lithography	5 nm	5 nm
Die size	2x 71 mm²	no data
Maximum core temperature	89 °C	100 °C
Number of transistors	17,840 million	9900 Million
64 bit support	+	+
Unlocked multiplier	+	-

Compatibility

Information on Ryzen 9 7945HX3D and Ryzen 9 7940HX 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	no data
Socket	FL1	FL1
Power consumption (TDP)	55 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7945HX3D and Ryzen 9 7940HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI	+	+
FMA	-	+
AVX	+	+
Precision Boost 2	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 7945HX3D and Ryzen 9 7940HX are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7945HX3D and Ryzen 9 7940HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR5-5200

DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

AMD Radeon 610M (400 - 2200 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 7945HX3D and Ryzen 9 7940HX.

PCIe version	5.0	no data
PCI Express lanes	28	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.

Ryzen 9 7945HX3D 36.15
+5.3%

Ryzen 9 7940HX 34.33

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.

Ryzen 9 7945HX3D 57430
+5.3%

Ryzen 9 7940HX 54535