Intel Core i7-1255U vs AMD Ryzen 9 6900HX

Comparative analysis of Intel Core i7-1255U and AMD Ryzen 9 6900HX processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, 3DMark Fire Strike - Physics Score.

Intel Core i7-1255U

AMD Ryzen 9 6900HX

Differences

Reasons to consider the Intel Core i7-1255U

CPU is newer: launch date 1 month(s) later
2 more cores, run more applications at once: 10 vs 8
Around 5% higher maximum core temperature: 100°C vs 95 °C
Around 56% more L1 cache; more data can be stored in the L1 cache for quick access later
3.1x more L2 cache, more data can be stored in the L2 cache for quick access later
3x lower typical power consumption: 15 Watt vs 45 Watt

Launch date	23 Feb 2022 vs Jan 2022
Number of cores	10 vs 8
Maximum core temperature	100°C vs 95 °C
L1 cache	800 KB vs 512 KB
L2 cache	12.5 MB vs 4 MB
Thermal Design Power (TDP)	15 Watt vs 45 Watt

Reasons to consider the AMD Ryzen 9 6900HX

Processor is unlocked, an unlocked multiplier allows for easier overclocking
4 more threads: 16 vs 12
Around 4% higher clock speed: 4.9 GHz vs 4.70 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 6 nm vs 7 nm
Around 33% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 6% better performance in PassMark - Single thread mark: 3437 vs 3255
Around 82% better performance in PassMark - CPU mark: 24707 vs 13549

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of threads	16 vs 12
Maximum frequency	4.9 GHz vs 4.70 GHz
Manufacturing process technology	6 nm vs 7 nm
L3 cache	16 MB vs 12 MB
Benchmarks
PassMark - Single thread mark	3437 vs 3255
PassMark - CPU mark	24707 vs 13549

Compare benchmarks

CPU 1: Intel Core i7-1255U
CPU 2: AMD Ryzen 9 6900HX

PassMark - Single thread mark

CPU 1

CPU 2

3255

3437

PassMark - CPU mark

CPU 1

CPU 2

13549

24707

Name	Intel Core i7-1255U	AMD Ryzen 9 6900HX
PassMark - Single thread mark	3255	3437
PassMark - CPU mark	13549	24707
3DMark Fire Strike - Physics Score		6849

Compare specifications (specs)

	Intel Core i7-1255U	AMD Ryzen 9 6900HX
Essentials
Architecture codename	Alder Lake	Zen 3+
Launch date	23 Feb 2022	Jan 2022
Launch price (MSRP)	$469
Place in performance rating	547	548
Processor Number	i7-1255U
Series	12th Generation Intel Core i7 Processors
Vertical segment	Mobile	Mobile
Performance
64 bit support
L1 cache	800 KB	512 KB
L2 cache	12.5 MB	4 MB
L3 cache	12 MB	16 MB
Manufacturing process technology	7 nm	6 nm
Maximum core temperature	100°C	95 °C
Maximum frequency	4.70 GHz	4.9 GHz
Number of cores	10	8
Number of threads	12	16
Base frequency		3.3 GHz
Die size		208 mm²
Unlocked
Memory
Max memory channels	2	2
Maximum memory size	64 GB
Supported memory types	Up to DDR5 4800 MT/s Up to DDR4 3200 MT/s Up to LPDDR5 5200 MT/s Up to LPDDR4x 4267 MT/s	DDR5-4800
ECC memory support
Graphics
Device ID	0x46A8
Execution Units	96
Graphics max dynamic frequency	1.25 GHz
Intel® Quick Sync Video
Processor graphics	Intel Iris Xe Graphics eligible
Graphics max frequency		2400 MHz
Graphics interfaces
Number of displays supported	4
Graphics image quality
Max resolution over DisplayPort	7680 x 4320 @ 60Hz
Max resolution over eDP	4096 x 2304 @ 120Hz
Graphics API support
DirectX	12.1
OpenGL	4.6
Compatibility
Max number of CPUs in a configuration	1
Package Size	50 x 25
Sockets supported	FCBGA1744	FP7
Thermal Design Power (TDP)	15 Watt	45 Watt
Peripherals
Max number of PCIe lanes	20	20
PCI Express revision		4.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Secure Boot
Advanced Technologies
Instruction set extensions	Intel SSE4.1, Intel SSE4.2, Intel AVX2
Intel® AES New Instructions
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Volume Management Device (VMD)
Speed Shift technology
Thermal Monitoring
AMD SenseMI
AMD StoreMI technology
Fused Multiply-Add 3 (FMA3)
Intel® Advanced Vector Extensions (AVX)
Intel® Advanced Vector Extensions 2 (AVX2)
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
AMD Virtualization (AMD-V™)