INTEL

Intel Core i5-8420T

Intel processor specifications and benchmark scores

6
Cores
6
Threads
3.4
GHz Boost
35W
TDP
🖥️Integrated GPU

Intel Core i5-8420T Specifications

⚙️

Core i5-8420T Core Configuration

Processing cores and threading

The Intel Core i5-8420T features 6 physical cores and 6 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.

Cores
6
Threads
6
SMP CPUs
1
⏱️

i5-8420T Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Core i5-8420T 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 i5-8420T by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
1800 GHz
Boost Clock
3.4 GHz
Multiplier
18x
💾

Intel's Core i5-8420T Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the i5-8420T 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 i5-8420T's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
64 KB (per core)
L2 Cache
256 KB (per core)
L3 Cache
9 MB (shared)
🏗️

Coffee Lake Architecture & Process

Manufacturing and design details

The Intel Core i5-8420T is built on Intel's 14 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 i5-8420T incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Coffee Lake
Codename
Coffee Lake
Process Node
14 nm
Foundry
Intel
Generation
Core i5 (Coffee Lake)
🔢

Coffee Lake Instruction Set Features

Supported CPU instructions and extensions

The Core i5-8420T 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.

MMX
SSE
SSE2
SSE3
SSSE3
SSE4.1
SSE4.2
AVX
AVX2
FMA3
AES-NI
F16C
BMI1
BMI2
Intel 64
VT-x
VT-d
🔌

i5-8420T Power & Thermal

TDP and power specifications

The Intel Core i5-8420T has a TDP (Thermal Design Power) of 35W, 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.

TDP
35W
🔧

Intel Socket 1151 Platform & Socket

Compatibility information

The Core i5-8420T uses the Intel Socket 1151 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.

Socket
Intel Socket 1151
PCIe
Gen 3, 16 Lanes(CPU only)
Package
FC-LGA1151
DDR5

Intel Socket 1151 Memory Support

RAM compatibility and speeds

Memory support specifications for the i5-8420T 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 i5-8420T 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.

Memory Type
DDR4
Memory Bus
Dual-channel
Memory Bandwidth
42.7 GB/s
🖥️

Intel's Core i5-8420T Integrated Graphics

Built-in GPU specifications

The Intel Core i5-8420T 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 i5-8420T 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.

iGPU
UHD Graphics 630
Graphics Model
UHD Graphics 630
📦

Core i5-8420T Product Information

Release and pricing details

The Intel Core i5-8420T 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 i5-8420T by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Sep 2018
Market
Desktop
Status
End-of-life
Part Number
SR3X7

Core i5-8420T Benchmark Scores

📊

No benchmark data available for this CPU.

About Intel Core i5-8420T

The Intel Core i5-8420T from Intel is a six-core, six-thread processor built on a 14 nm manufacturing process, designed for balanced performance and power efficiency. As part of the eighth-generation Core i5 lineup under the Coffee Lake architecture, it offers a base clock speed of 1800.00 GHz and a turbo clock up to 3.40 GHz, making it suitable for everyday computing and light multitasking. The I5-8420T from Intel features a shared 9 MB L3 cache, which enhances data retrieval and processing speed when handling complex applications. With a TDP of 35W, it is ideal for compact systems or environments where thermal management is a priority. The processor uses the Intel Socket 1151, which ensures compatibility with a range of motherboards from the same generation. The I5-8420T from Intel was released in September 2018, positioning it as a reliable option for users seeking a stable and efficient computing platform. In terms of performance metrics, the I5-8420T from Intel delivers solid multi-threaded performance for its class, making it a good fit for productivity tasks, casual gaming, and content creation. While it lacks the higher clock speeds and additional cores found in more premium models, its 14 nm architecture and 9 MB cache provide a noticeable improvement over previous generations. The I5-8420T from Intel is not optimized for heavy workloads or high-end gaming, but it performs adequately in standard computing environments. With a base clock of 1.8 GHz and a maximum turbo of 3.4 GHz, it is best suited for users who prioritize power efficiency over raw performance. The I5-8420T from Intel offers a good value proposition for budget-conscious buyers looking for a capable processor. Without benchmark data, it is still possible to gauge its performance based on its specifications and intended use cases. For competitive positioning, the I5-8420T from Intel sits in the mid-range segment, offering a balance between performance and power consumption that makes it a viable option for mainstream desktop builds. It competes with AMD's Ryzen 5 series and other Intel Core i5 models from the same era, often providing better single-threaded performance due to its architecture. The I5-8420T from Intel is less powerful than the i5-8600K but more power-efficient, which makes it a suitable choice for low-power or small form factor systems. It is not the best performer in its class but remains a dependable option for users who don't require the highest levels of performance. The I5-8420T from Intel is particularly useful in systems where thermal constraints and energy savings are important. Its release in 2018 also means it may be available at lower prices in second-hand markets. When building a system around the I5-8420T from Intel, it is recommended to pair it with a compatible Intel 300-series motherboard that supports the 1151 socket and offers stable performance. For storage, a fast SSD is ideal, as it complements the processor's performance and reduces load times. A mid-range GPU is sufficient for the I5-8420T from Intel, especially if the system is intended for productivity or casual gaming. These builds benefit from using DDR4 memory with a speed of at least 2400 MHz to ensure optimal performance. The I5-8420T from Intel works well with cooling solutions that can manage its 35W TDP effectively. It is best to avoid pairing the I5-8420T from Intel with high-end components that may not be fully utilized, as it is designed for balanced, everyday computing needs.

The AMD Equivalent of Core i5-8420T

Looking for a similar processor from AMD? The AMD Ryzen 5 2500X offers comparable performance and features in the AMD lineup.

AMD Ryzen 5 2500X

AMD • 4 Cores

View Specs Compare

Popular Intel Core i5-8420T Comparisons

See how the Core i5-8420T stacks up against similar processors from the same generation and competing brands.

Compare Core i5-8420T with Other CPUs

Select another CPU to compare specifications and benchmarks side-by-side.

Browse CPUs