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Intel 8th Gen Intel Core i7-8700K vs Intel Core Ultra 5 245K: Comparison

Intel 8th Gen Intel Core i7-8700K and Intel Core Ultra 5 245K separate most on l2 cache: Intel 8th Gen Intel Core i7-8700K at 1.5 MB, Intel Core Ultra 5 245K at 26 MB, 94% in favour of Intel Core Ultra 5 245K. L3 Cache splits them by another 50%, again favouring Intel Core Ultra 5 245K. They match on 6 other specifications, including form factor, market segment and performance cores. In Blender Cycles (CPU) the Intel Core Ultra 5 245K scores 318 against 122 for the Intel 8th Gen Intel Core i7-8700K, a lead of 62%.

Specs

Specification
8th Gen Intel Core i7-8700K
Intel 8th Gen Intel Core i7-8700K
Intel Core Ultra 5 245K
Intel Core Ultra 5 245K
BrandIntelIntel
Form FactorDesktopDesktop
Model Number8700K245K
CodenameCoffee LakeArrow Lake-S
Core/Thread Count6 Core / 12 Thread14 Core (6P+8E) / 14 Thread
TDP95 W125W Base / 159W Max Turbo
iGPUIntel UHD Graphics 630Intel Arc Graphics (4 Xe Cores)
Market SegmentDesktopDesktop
Cache12MB L3 + 1.5MB L2 + 384KB L124MB L3 + 26MB L2
SocketLGA 1151LGA 1851
Boost/Base Clock4.7 GHz / 3.7 GHz5.2 GHz / 4.2 GHz
Socket StatusEnd of LifeCurrent
Process Node14 nm3 nm
Performance Cores66
Efficiency Cores08
SMT Enabledtruefalse
P-Core Base Clock3.7 GHz4.2
P-Core Boost Clock4.7 GHz5.2
L2 Cache1.5 MB-94%26 MB
L3 Cache12 MB-50%24 MB
Base Power95 W125 W
Max Turbo Power95 W159
Memory TypeDDR4DDR5
Max Memory Speed2666 MT/s6400
Memory Channels22
ECC Supportfalsetrue
Integrated GraphicsYesYes
iGPU ModelIntel UHD Graphics 630Intel Graphics
Copilot Plus Certifiedfalsefalse
PCIe Generation3.0PCIe 5.0
PCIe Lanes16-33%24
Launch MSRP$359309
Retail AvailabilityRetailBoxed Retail
SeriesCore i7Core Ultra 5
CPU Process Node14 NanometersTSMC N3B (Compute Tile)
ArchitectureCoffee Lake, 8th Gen Intel CoreArrow Lake, Core Ultra 200 Series
Memory SupportDDR4-2666DDR5-6400

Benchmarks

Measured results, not specifications. Percentages are the gap to the leading product in each test.

Blender Cycles (CPU)

Blender 4.5, Blender Open Data (CC0). Median of monster + junkshop + classroom, combined samples/min.

Blender renders 3D scenes by tracing light through them, which loads every core at once. The score measures sustained multi-core throughput, so a chip that wins here can still lose at gaming, where one or two fast cores matter more. Figures come from Blender's Open Data project, which places no restriction on reuse, and we publish the median of every submission for that chip on the same Blender version.

Intel 8th Gen Intel Core i7-8700K122n=42-62%
Intel Core Ultra 5 245K318n=25Best

More comparisons in Processors (CPUs)