Intel Core i7-2657M vs Intel Core i7-2820QM

Comparative analysis of Intel Core i7-2657M and Intel Core i7-2820QM processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

 

Differences

Reasons to consider the Intel Core i7-2657M

  • 2.6x lower typical power consumption: 17 Watt vs 45 Watt
Thermal Design Power (TDP) 17 Watt vs 45 Watt

Reasons to consider the Intel Core i7-2820QM

  • 2 more cores, run more applications at once: 4 vs 2
  • 4 more threads: 8 vs 4
  • Around 26% higher clock speed: 3.40 GHz vs 2.70 GHz
  • 2x more L1 cache, more data can be stored in the L1 cache for quick access later
  • 2x more L2 cache, more data can be stored in the L2 cache for quick access later
  • 2x more L3 cache, more data can be stored in the L3 cache for quick access later
  • 4x more maximum memory size: 32 GB vs 8.01 GB
Number of cores 4 vs 2
Number of threads 8 vs 4
Maximum frequency 3.40 GHz vs 2.70 GHz
L1 cache 256 KB vs 128 KB
L2 cache 1024 KB vs 512 KB
L3 cache 8192 KB vs 4096 KB
Maximum memory size 32 GB vs 8.01 GB

Compare benchmarks

CPU 1: Intel Core i7-2657M
CPU 2: Intel Core i7-2820QM

Name Intel Core i7-2657M Intel Core i7-2820QM
PassMark - Single thread mark 1487
PassMark - CPU mark 4379
Geekbench 4 - Single Core 617
Geekbench 4 - Multi-Core 2236
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 4.053
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 65.357
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.459
CompuBench 1.5 Desktop - Video Composition (Frames/s) 1.591
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 3.98

Compare specifications (specs)

Intel Core i7-2657M Intel Core i7-2820QM

Essentials

Architecture codename Sandy Bridge Sandy Bridge
Launch date 3 January 2011 3 January 2011
Launch price (MSRP) $317 $568
Place in performance rating not rated 2519
Processor Number i7-2657M i7-2820QM
Series Legacy Intel® Core™ Processors Legacy Intel® Core™ Processors
Status Launched Launched
Vertical segment Mobile Mobile
Price now $251.04
Value for money (0-100) 7.79

Performance

64 bit support
Base frequency 1.60 GHz 2.30 GHz
Bus Speed 5 GT/s DMI 5 GT/s DMI
Die size 149 mm 216 mm
L1 cache 128 KB 256 KB
L2 cache 512 KB 1024 KB
L3 cache 4096 KB 8192 KB
Manufacturing process technology 32 nm 32 nm
Maximum core temperature 100 C 100 C
Maximum frequency 2.70 GHz 3.40 GHz
Number of cores 2 4
Number of threads 4 8
Transistor count 624 Million 995 Million

Memory

Max memory channels 2 2
Maximum memory bandwidth 21.3 GB/s 25.6 GB/s
Maximum memory size 8.01 GB 32 GB
Supported memory types DDR3 1066/1333 DDR3 1066/1333/1600

Graphics

Device ID 0x116 0x116
Graphics base frequency 350 MHz 650 MHz
Graphics max dynamic frequency 1.00 GHz 1.30 GHz
Graphics max frequency 1 GHz 1.3 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics Intel® HD Graphics 3000 Intel® HD Graphics 3000

Graphics interfaces

CRT
DisplayPort
eDP
HDMI
Number of displays supported 2 2
SDVO
Wireless Display (WiDi) support

Compatibility

Low Halogen Options Available
Max number of CPUs in a configuration 1 1
Package Size 31.0mm x 24.0mm (BGA1023) 37.5 x 37.5mm (rPGA988B); 31.0 x 24.0mm (BGA1224)
Sockets supported FCBGA1023 FCPGA988, FCBGA1224
Thermal Design Power (TDP) 17 Watt 45 Watt

Peripherals

Max number of PCIe lanes 16 16
PCI Express revision 2.0 2.0
PCIe configurations 1x16, 2x8, 1x8+2x4 1x16, 2x8, 1x8+2x4

Security & Reliability

Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)

Advanced Technologies

4G WiMAX Wireless
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions Intel® AVX Intel® AVX
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® My WiFi technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Intel® Advanced Vector Extensions (AVX)

Virtualization

Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
AMD Virtualization (AMD-V™)

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