Intel Core i7-1255U
Intel processor specifications and benchmark scores
Intel Core i7-1255U Specifications
Core i7-1255U Core Configuration
Processing cores and threading
The Intel Core i7-1255U features 10 physical cores and 12 threads, which directly impacts multi-threaded performance in CPU benchmarks. More cores allow the processor to handle parallel workloads efficiently, improving performance in video editing, 3D rendering, and multitasking scenarios. Thread count determines how many simultaneous tasks the CPU can process, with higher thread counts benefiting productivity applications and content creation workflows.
i7-1255U Clock Speeds
Base and boost frequencies
Clock speed is a critical factor in Core i7-1255U benchmark performance, measured in GHz. The base clock represents the guaranteed operating frequency, while the boost clock indicates maximum single-core performance under optimal conditions. Higher clock speeds translate to faster single-threaded performance, which is essential for gaming and applications that don't fully utilize multiple cores. The Core i7-1255U by Intel can dynamically adjust its frequency based on workload and thermal headroom.
Intel's Core i7-1255U Cache Hierarchy
L1, L2, L3 cache sizes
Cache memory is ultra-fast storage built directly into the i7-1255U processor die. L1 cache provides the fastest access for frequently used data, while L2 and L3 caches offer progressively larger storage with slightly higher latency. Larger cache sizes significantly improve CPU benchmark scores by reducing memory access times. The Core i7-1255U's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.
Alder Lake Architecture & Process
Manufacturing and design details
The Intel Core i7-1255U is built on Intel's 10 nm manufacturing process, which determines power efficiency and thermal characteristics. Smaller process nodes allow for more transistors in the same space, enabling higher performance per watt. The architecture defines how the processor handles instructions and manages data flow, directly impacting benchmark results across different workload types. Modern CPU architectures like the one in i7-1255U incorporate advanced branch prediction and out-of-order execution for optimal performance.
Alder Lake Instruction Set Features
Supported CPU instructions and extensions
The Core i7-1255U by Intel supports various instruction set extensions that enable optimized performance for specific workloads. SIMD instructions like SSE and AVX accelerate multimedia, scientific computing, and AI workloads by processing multiple data points simultaneously. Features like AES-NI provide hardware-accelerated encryption, while AVX-512 (if supported) enables advanced vector processing for data centers and high-performance computing. These instruction sets are critical for software compatibility and performance in modern applications.
i7-1255U Power & Thermal
TDP and power specifications
The Intel Core i7-1255U has a TDP (Thermal Design Power) of 15W, indicating the cooling solution required for sustained operation. TDP affects both system power consumption and the type of cooler needed. Lower TDP processors are ideal for compact builds and laptops, while higher TDP chips typically offer better sustained performance in demanding CPU benchmarks. Understanding power requirements helps ensure your system can deliver consistent performance without thermal throttling.
Intel BGA 1744 Platform & Socket
Compatibility information
The Core i7-1255U uses the Intel BGA 1744 socket, which determines motherboard compatibility. Choosing the right platform is essential for building a system around this processor. The socket type also influences available features like PCIe lanes, memory support, and upgrade paths. When comparing CPU benchmarks, ensure you're looking at processors compatible with your existing or planned motherboard to make informed purchasing decisions.
Intel BGA 1744 Memory Support
RAM compatibility and speeds
Memory support specifications for the i7-1255U define which RAM types and speeds are compatible. Faster memory can significantly improve CPU benchmark performance, especially in memory-intensive applications and gaming. The memory controller integrated into the Core i7-1255U determines maximum supported speeds and channels. Dual-channel or quad-channel memory configurations can double or quadruple memory bandwidth, providing noticeable performance gains in content creation and scientific workloads.
Intel's Core i7-1255U Integrated Graphics
Built-in GPU specifications
The Intel Core i7-1255U includes integrated graphics, eliminating the need for a dedicated GPU in basic computing scenarios. Integrated graphics are ideal for office productivity, video playback, and light gaming. While not designed for demanding GPU benchmarks, the iGPU in the i7-1255U provides hardware video encoding and decoding capabilities. This makes the processor suitable for compact builds, HTPCs, and systems where power efficiency is prioritized over gaming performance.
Core i7-1255U Product Information
Release and pricing details
The Intel Core i7-1255U is manufactured by Intel and represents their commitment to delivering competitive CPU performance. Understanding the release date and pricing helps contextualize benchmark comparisons with other processors from the same generation. Launch pricing provides a baseline for evaluating value, though street prices often differ. Whether you're building a new system or upgrading, the Core i7-1255U by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.
Core i7-1255U Benchmark Scores
cinebench_cinebench_r15_multicoreSource
Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how Intel Core i7-1255U performs in parallel rendering workloads like video production and 3D animation. Higher scores mean faster render times in professional applications.
cinebench_cinebench_r15_singlecoreSource
Cinebench R15 single-core measures the speed of one CPU thread rendering 3D geometry. This score indicates how Intel Core i7-1255U handles tasks that can't be parallelized across multiple cores. Games and many desktop applications still rely heavily on single-thread performance.
cinebench_cinebench_r20_multicoreSource
Cinebench R20 multi-core uses a scene requiring 4x more computational power than R15. This test better reflects modern CPU capabilities for professional rendering on Intel Core i7-1255U.
cinebench_cinebench_r20_singlecoreSource
Cinebench R20 single-core tests one thread against a more demanding scene than R15. This reveals the true single-thread rendering capability of Intel Core i7-1255U.
cinebench_cinebench_r23_multicoreSource
Cinebench R23 multi-core is the current standard for CPU rendering benchmarks with a 10-minute minimum runtime. This extended test reveals sustained performance of Intel Core i7-1255U after thermal limits kick in.
cinebench_cinebench_r23_singlecoreSource
Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how Intel Core i7-1255U maintains boost clocks under continuous load.
passmark_data_compressionSource
Data compression measures how fast Intel Core i7-1255U can compress and decompress files. This is important for archiving, backup software, and file transfer applications.
passmark_data_encryptionSource
Data encryption tests how fast Intel Core i7-1255U can encrypt information using AES and other algorithms. This is critical for security applications, VPNs, and secure communications. Modern CPUs with AES-NI hardware acceleration score significantly higher. Disk encryption, secure browsing, and VPN performance all benefit from faster encryption.
passmark_extended_instructionsSource
Extended instructions tests Intel Core i7-1255U performance using SSE and AVX instruction sets. These specialized instructions accelerate multimedia, scientific, and AI workloads.
passmark_find_prime_numbersSource
Find prime numbers tests Intel Core i7-1255U ability to identify primes through intensive calculations. This is a pure computational benchmark that stresses CPU arithmetic units without memory bottlenecks. The test reveals raw mathematical processing capability.
passmark_floating_point_mathSource
Floating point math measures how Intel Core i7-1255U handles decimal calculations critical for scientific computing and 3D rendering. This affects performance in CAD and physics simulations.
passmark_integer_mathSource
Integer math tests how fast Intel Core i7-1255U processes whole number calculations essential for database operations and compression algorithms. This is fundamental to general computing performance. Encryption and data processing heavily rely on integer operations. Higher scores benefit applications that work primarily with non-decimal numbers.
passmark_multithreadSource
PassMark multi-thread tests Intel Core i7-1255U across integer math, floating point, compression, and encryption using all cores. This provides an overall multi-threaded CPU performance score. The combined result reflects general-purpose parallel computing capability. Results can be compared against millions of submissions in the PassMark database.
passmark_physicsSource
Physics tests how Intel Core i7-1255U handles physics simulations used in games and engineering software. This measures performance in calculating object interactions and movements.
passmark_random_string_sortingSource
Random string sorting measures how fast Intel Core i7-1255U can organize text data. This is important for database operations, search indexing, and data processing applications.
passmark_single_threadSource
PassMark single-thread measures per-core performance of Intel Core i7-1255U across various computational tasks. This score is critical for gaming and single-threaded applications. Higher scores mean better system responsiveness in everyday use.
passmark_singlethreadSource
PassMark single-thread measures per-core performance of Intel Core i7-1255U across various computational tasks. This score is critical for gaming and single-threaded applications. Higher scores mean better system responsiveness in everyday use. Many legacy applications and games still depend heavily on single-thread speed.
About Intel Core i7-1255U
Delving into the Intel Core i7-1255U reveals a compact powerhouse tailored for ultrathin laptops, boasting 10 cores and 12 threads on Intel's BGA 1744 socket. This Alder Lake-U chip, fabricated on a 10nm process, launches with a base clock of 1.7 GHz but aggressively boosts to 4.70 GHz under optimal conditions. Investigators note its 15W TDP as a cornerstone for sustained efficiency in mobile scenarios. The shared 12MB L3 cache underpins its multi-threading prowess, enabling seamless handling of parallel workloads. Release on February 23, 2022, positioned it as a frontrunner in low-power performance. Passmark data compression scores hit 147,320 points, signaling robust handling of gzip-like tasks. Integer math benchmarks at 48,498 points further affirm its computational grit.
Scrutinizing multi-threading capabilities, Intel's i7-1255U excels with a Passmark multithread score of 13,234 points, leveraging its hybrid P-core and E-core architecture for balanced throughput. Floating-point math registers 32,618 points, ideal for simulation-heavy applications. Random string sorting at 16,934 points exposes efficient memory access patterns during data shuffling. Clock speeds shine in turbo bursts up to 4.70 GHz, but base 1.7 GHz ensures thermal headroom in 15W envelopes. Power consumption remains meticulously managed, rarely exceeding TDP in real-world probes. This setup targets productivity suites where thread parallelism accelerates rendering and compilation. Benchmark variances highlight software optimization's role in unlocking full potential.
Power consumption and TDP form the i7-1255U's efficiency narrative, with 15W base enabling all-day battery life in slim chassis. Memory subsystem supports DDR5-4800 and LPDDR5-6400, though channel count limits aggregate bandwidth to dual configurations. Investigators uncover L3 cache's 12MB shared pool as a latency mitigator for core-to-core data sharing. Target use cases span office multitasking, light content creation, and casual gaming on integrated Iris Xe graphics. Sustained loads probe thermal throttling thresholds, often holding boosts admirably. Passmark integer math's 48,498 points correlate to vectorized workloads thriving here.
Summarizing Intel's I7-1255U benchmarks uncovers a verdict of versatile low-power excellence, though enthusiasts probe for desktop parity gaps. Key highlights emerge in structured analysis:
- Multi-threading at 13,234 Passmark points powers parallel apps effortlessly.
- Turbo boosts to 4.70 GHz deliver snappy single-thread responsiveness.
- 15W TDP balances performance with portability in ultrabooks.
- Data compression prowess at 147,320 points suits archival tasks.
Ultimately, this chip's architecture invites deeper ecosystem testing for edge-case validations.
The AMD Equivalent of Core i7-1255U
Looking for a similar processor from AMD? The AMD Ryzen 7 5700X offers comparable performance and features in the AMD lineup.
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