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.

 

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: 3442 vs 3258
  • Around 83% better performance in PassMark - CPU mark: 24768 vs 13566
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 3442 vs 3258
PassMark - CPU mark 24768 vs 13566

Compare benchmarks

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

PassMark - Single thread mark
CPU 1
CPU 2
3258
3442
PassMark - CPU mark
CPU 1
CPU 2
13566
24768
Name Intel Core i7-1255U AMD Ryzen 9 6900HX
PassMark - Single thread mark 3258 3442
PassMark - CPU mark 13566 24768
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 548 549
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™)