Intel Core i7-3820 Intel Core i3-1215U
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Intel Core i7-3820 vs Intel Core i3-1215U

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Performance Overview
Average performance across multiple benchmarks

Single-core performance
Rank 2 - 42 %
Intel Core i7-3820
Rank 1 - 100 %
Intel Core i3-1215U
Multi-core performance
Rank 2 - 59 %
Intel Core i7-3820
Rank 1 - 100 %
Intel Core i3-1215U
Geekbench 6 Single-Core

Geekbench 6 Single-Core
Single-core performance

Intel Core i7-3820
4C / 8T · 3.80 GHz
729
Intel Core i3-1215U
6C / 8T · 4.40 GHz
2,079
Geekbench 6 Multi-Core

Geekbench 6 Multi-Core
Multi-core performance

Intel Core i7-3820
4C / 8T · 3.60 GHz
2,596
Intel Core i3-1215U
6C / 8T · 1.80 GHz
4,135
Geekbench 5, 64bit Single-Core

Geekbench 5, 64bit Single-Core
Single-core performance

Intel Core i7-3820
4C / 8T · 3.80 GHz
772
Intel Core i3-1215U
6C / 8T · 4.40 GHz
1,596
Geekbench 5, 64bit Multi-Core

Geekbench 5, 64bit Multi-Core
Multi-core performance

Intel Core i7-3820
4C / 8T · 3.60 GHz
3,293
Intel Core i3-1215U
6C / 8T · 1.80 GHz
5,328

More benchmarks

At a glance

Wischen
Intel Core i7-3820Intel Core i3-1215U
FamilyIntel Core i7 Extreme Edition (24)Intel Core i3 (205)
CPU groupIntel Core i 3000X (4)Intel Core i 1200P/1200U (21)
ArchitectureSandy Bridge EAlder Lake U
Technology32 nm10 nm
SegmentDesktopNotebook
SocketLGA 2011BGA 1744
Predecessor
SuccessorIntel Core i3-1315U

CPU Cores and Base Frequency

Wischen
Intel Core i7-3820Intel Core i3-1215U
CPU Cores / Threads4 / 86 / 8
Hyperthreading / SMT
Core architecturenormalhybrid (big.LITTLE)
Core Cluster 1: 4x
3.60 - 3.80 GHz
2x Golden Cove
1.20 - 4.40 GHz
Core Cluster 2: 4x Gracemont
0.90 - 3.30 GHz
L2-Cache4.50 MB
L3-Cache10.00 MB10.00 MB
Overclocking

Integrated graphics (iGPU)

Wischen
Intel Core i7-3820Intel Core i3-1215U
GPU nameno iGPUIntel Iris Xe Graphics 64 (Alder Lake)
GPU frequency0.30 - 1.10 GHz
CUs / Shader / 64 / 512
Raytracing
Max. displays4
Max. GPU Memory32 GB
Technology10 nm
Release dateQ1/2022

NPU AI performance

Wischen
Intel Core i7-3820Intel Core i3-1215U
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen
Intel Core i7-3820Intel Core i3-1215U
MemoryDDR3-1600 (51.2 GB/s)
DDR3-1333 (42.6 GB/s)
DDR3-1066 (34.2 GB/s)
LPDDR5-5200 (83.2 GB/s)
DDR5-4800 (76.8 GB/s)
LPDDR4X-4266 (68.2 GB/s)
DDR4-3200 (51.2 GB/s)
Max. Memory64 GB64 GB
Memory channels42
ECCNoNo
PCIe2.0 x 404.0 x 28
PCIe Bandwidth20.0 GB/s55.1 GB/s

Thermal Management

Wischen
Intel Core i7-3820Intel Core i3-1215U
TDP130 W15 W
TDP (PL2)55 W
TDP up
TDP down
T. junction max.105 °C100 °C

Technical details

Wischen
Intel Core i7-3820Intel Core i3-1215U
Chip designMonolithicMonolithic
AES-NI
Operating systemsWindows 10, LinuxWindows 10, Windows 11, Linux
Instruction setx86-64 (64 bit)x86-64 (64 bit)
ISA extensionsSSE4.1, SSE4.2, AVXSSE4.1, SSE4.2, AVX2
Release dateQ1/2012Q1/2022
Release price305 $
DocumentsTechnical data sheetTechnical data sheet

Your rating

Here you can rate one or both of the processors. The average rating of Intel Core i7-3820 is 3.4 stars (7 ratings), while Intel Core i3-1215U has received 4.4 stars (262 ratings).

Click on the stars to rate one or both processors.

Intel Core i7-3820
Intel Core i7-3820
4C / 8T · 3.60 - 3.80 GHz
Intel Core i3-1215U
Intel Core i3-1215U
6C / 8T · 1.20 - 4.40 GHz

Most popular CPUs in both categories

Intel Core i7-3820
Intel Core i7-3820
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