GPUIntegrated (APU)Released —

Intel Iris Plus Graphics 645

384 cores

Iris Plus Graphics 645 is the 48-EU Gen9.5 (GT3e) integrated GPU of the Core i5-8257U and Core i7-8557U, 15 W Coffee Lake processors introduced in 2019 and used in the entry-level 13-inch MacBook Pro with two Thunderbolt 3 ports. It is backed by 128 MB of eDRAM that serves as an extra cache for the graphics and CPU cores, and its maximum clock is 1.05 GHz with the i5-8257U and 1.15 GHz with the i7-8557U.

General

Manufacturer: Intel
Model: Iris Plus Graphics 645
Segment: Integrated (APU)
GPU chip: Coffee Lake
Architecture: Gen9.5
Release date: —
Price: Search on Amazon

Memory

Memory size: —
Memory type: DDR4/LPDDR3 +128MB eDRAM
Bus width: —
Bandwidth: —
Memory clock: —

Clocks & silicon

GPU clock: 300 MHz
Boost clock: 1,150 MHz
Shader units: 384 ALUs (48 EU)
Tensor / AI cores: —
RT cores: —
Transistors: —
Technology (nm): 14 nm
Intel 14 nm++
TDP / TBP: —

Interface & APIs

Bus interface: Integrated (on-die)
SLI / multi-GPU: —
DirectX: 12 (12_1)
OpenGL: 4.5
Vulkan: 1.3
Other APIs: OpenCL 3.0, Intel Quick Sync Video

AI support

Precisions: FP8FP16BF16INT8INT4TF32FP64
AI accelerator: None (no matrix or XMX hardware)
Peak AI TOPS: —
Notes: Gen9.5 execution units support native FP16 arithmetic but include no matrix or XMX units. The DP4a INT8 dot-product instruction only arrived with Xe-LP, so inference runs on the general-purpose execution units through OpenCL or oneAPI.

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Integrated (APU) gpus from Intel announced around the same time as the Intel Iris Plus Graphics 645. Add any of them to your compare list to see the specs side by side.

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