Revision as of 00:25, 4 April 2018

Core i5-8259U is a 64-bit quad-core high-end performance x86 mobile microprocessor introduced by Intel in early 2018. This processor, which is based on the Coffee Lake microarchitecture, is manufactured on Intel's improved 14nm++ process. The i5-8259U operates at 2.3 GHz with a TDP of 28 W and with a Turbo Boost of up to 3.8 GHz. This MPU supports up to 32 GiB of dual-channel DDR4-2400 memory and incorporates Intel's Iris Plus Graphics 655 IGP operating at 300 MHz with a burst frequency of 1.05 GHz. This particular GPU includes an additional 128 MiB of eDRAM L4$.

Cache

Main article: Coffee Lake § Cache

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Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 256 KiB 262,144 B 0.25 MiB L1I$ 128 KiB 131,072 B 0.125 MiB 4x32 KiB 8-way set associative   L1D$ 128 KiB 131,072 B 0.125 MiB 4x32 KiB 8-way set associative write-back L2$ 1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB     4x256 KiB 4-way set associative write-back L3$ 6 MiB 6,144 KiB 6,291,456 B 0.00586 GiB     4x1.5 MiB 12-way set associative write-back

Memory controller

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	Integrated Memory Controller
	Max Type DDR4-2400, LPDDR3-2133 Supports ECC No Max Mem 32 GiB Controllers 1 Channels 2 Width 64 bit Max Bandwidth 35.76 GiB/s 36,618.24 MiB/s 38.397 GB/s 38,397.008 MB/s 0.0349 TiB/s 0.0384 TB/s Bandwidth Single 17.88 GiB/s Double 35.76 GiB/s

Expansions

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	Expansion Options
PCIe Revision: 3.0 Max Lanes: 16 Configuration: 1x4, 2x2, 1x2+2x1, 4x1

Graphics

The Iris Plus Graphics 655 (graphics tier 3) includes an additional 128 MiB of eDRAM side-cache.

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Integrated Graphics Information

GPU Iris Plus Graphics 655 Designer Intel Device ID 0x3EA5 Execution Units 48 Max Displays 3 Max Memory 32 GiB 32,768 MiB 33,554,432 KiB 34,359,738,368 B Frequency 300 MHz 0.3 GHz 300,000 KHz Burst Frequency 1,050 MHz 1.05 GHz 1,050,000 KHz Output DP, eDP, HDMI, DVI Max Resolution HDMI 4096x2304 @24 Hz DP 4096x2304 @60 Hz eDP 4096x2304 @60 Hz Standards DirectX 12 OpenGL 4.5 OpenCL 2.0 DP 1.2 eDP 1.4 HDMI 1.4a Additional Features Intel Quick Sync Video Intel InTru 3D Intel Clear Video Intel Clear Video HD

Features

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Supported x86 Extensions & Processor Features

MMX MMX Extension EMMX Extended MMX Extension SSE Streaming SIMD Extensions SSE2 Streaming SIMD Extensions 2 SSE3 Streaming SIMD Extensions 3 SSSE3 Supplemental SSE3 SSE4.1 Streaming SIMD Extensions 4.1 SSE4.2 Streaming SIMD Extensions 4.2 AVX Advanced Vector Extensions AVX2 Advanced Vector Extensions 2 ABM Advanced Bit Manipulation BMI1 Bit Manipulation Instruction Set 1 BMI2 Bit Manipulation Instruction Set 2 FMA3 3-Operand Fused-Multiply-Add AES AES Encryption Instructions RdRand Hardware RNG ADX Multi-Precision Add-Carry CLMUL Carry-less Multiplication Extension F16C 16-bit Floating Point Conversion x86-16 16-bit x86 x86-32 32-bit x86 x86-64 64-bit x86 Real Real Mode Protected Protected Mode SMM System Management Mode FPU Integrated x87 FPU NX No-eXecute HT Hyper-Threading TBT 2.0 Turbo Boost Technology 2.0 EIST Enhanced SpeedStep Technology SST Speed Shift Technology VT-x VT-x (Virtualization) VT-d VT-d (I/O MMU virtualization) EPT Extended Page Tables (SLAT) MPX Memory Protection Extensions SGX Software Guard Extensions Secure Key Secure Key Technology SMEP OS Guard Technology Flex Memory Flex Memory Access ISRT Smart Response Technology SBA Small Business Advantage MWT My WiFi Technology IPT Identity Protection Technology