Intel Core i3 2100 

Released January, 2011
  • 3.1 GHz
  • Dual core
6.9 Out of 10

It probably doesn't need saying, but even at its overclocked speed the gaming performance of the graphics core is practically nonexistent for high-end 3D games.
by Tech Radar (Apr, 2011)
Low end system builders may love it, but whether the home user will build a system around it is a bit doubtful.
by Tech Radar (Apr, 2011)
Explore 2 desktops with the Intel Core i3 2100

CPUBoss Review Our evaluation of the Intel Core i3 2100 among desktop CPUs (45 to 75W)


Benchmark performance using all cores

Core i3 2100
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Core i3 2100
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Core i3 2100
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Core i3 2100
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Core i3 2100
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more


Are you paying a premium for performance?

Core i3 2100
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more


CPUBoss Score

Combination of all six facets

Core i3 2100

Benchmarks Real world tests of the Intel Core i3 2100

CompuBench 1.5 (Face detection)

Core i3 2100
2.05 mPixels/s

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

Core i3 2100
Core i3 3220

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i3 2100
Pentium G620
Core i3 3220

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i3 2100
Pentium G620
Core i3 3220

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i3 2100
153,100 MB/s
Pentium G620
128,700 MB/s
Core i3 3220
173,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i3 2100
Pentium G620
Core i3 3220

PassMark Data courtesy Passmark

Core i3 2100
Pentium G620
Core i3 3220

PassMark (Single Core)

Core i3 2100
Pentium G620
Core i3 3220

Reviews Word on the street for the Intel Core i3 2100

The Core i3-2100 is loaded with 3MB of cache, as well as Intel HD Graphics 2000 for integrated video—this is the lesser of the two Sandy Bridge integrated video options, but it will provide some power and support for DirectX 10.1 (DX10.1), if not DX11, 3D.

As with all the current Sandy Bridge processors, it's built on the 32nm process and manages to pack 504 million transistors into its die.

Great for HTPC, Games and a bit of Media Encoding, it's a jack of all trades and definitely worth a look for the non enthusiast on a budget.


8.0 Out of 10

What People Are Saying Give it to me straight

Socket Type

AMD accomplishes these gains by sacrificing some processing power, however: The A8-3850’s Handbrake time of 2 minutes 10 seconds was drastically behind the Core i3-2100’s, and it finished applying 12 filters and effects to a photo in Photoshop CS5 in just over 3 minutes instead of just over 5.
by PCMag (Aug, 2011)
As with all the Sandy Bridge CPUs, you’ll need a newer motherboard sporting an LGA1155 socket to even house the Core i3-2100—an older LGA1156 model won’t do the job.
by PCMag (Aug, 2011)
The intel HD 2000 graphics handle those games at acceptable framerates, and for the pricepoint it cannot be beat.
by Likespikes69 (Oct, 2012)


If you’re planning to build a budget desktop PC and you’re determined to use current parts, the least-expensive Intel option available to you is the Core i3-2100 ($117 list).
by PCMag (Aug, 2011)
After several goes our i3 settled down at 1,300MHz, which isn't a bad jump from the standard speeds.
by Tech Radar (Apr, 2011)
AMD and Intel chips aren’t interchangeable of course—you need to make your decision and stick with it through the life of your system—but if basic 3D gaming interests you, the A8-3850 delivers markedly better results.
by PCMag (Aug, 2011)


You may not be able to overclock the CPU core but you can though do a smidgen of tinkering to the HD2000 graphics core integrated into this second generation Core CPU.
by Tech Radar (Apr, 2011)
Though it may just be hoping people instead choose to dig a bit deeper and buy a more powerful quad-core Core i5.
by Tech Radar (Apr, 2011)
Purchased for the Step Son's build for Xmas - the i3-2100 is a great performer for only being a dual core processor with Hyper-Threading.
by Kusanagi (Jan, 2012)


I highly recommend it for budget builds, where you may add a discrete video card later, but need your fix of games now.
by Likespikes69 (Oct, 2012)
It will do the trick for a modest-needs machine, but for stronger processing potential you’ll want something faster; and if even basic gaming is your goal, a discrete video card—or considering a system based on AMD’s newest technology instead—will be a better bet.
by PCMag (Aug, 2011)
Plus, it could even run DX11 games Intel can’t (though, in fairness, its frame rates took an even steeper drop, at least with all of the details cranked up the way we had them).
by PCMag (Aug, 2011)


It can even run games at a higher FPS than most of the AMD quad cores!
by Sean-Webster (Nov, 2011)

Specifications Full list of technical specs


Clock speed 3.1 GHz
Cores Dual core
Socket type LGA 1155
Is unlocked No


Has a NX bit Yes
Supports trusted computing No
Has virtualization support Yes
Instruction set extensions
  1. MMX
  2. SSE
  3. SSE2
  4. SSE4.1
  5. SSE3
  6. Supplemental SSE3
  7. SSE4.2
  8. AVX
  9. SSE4
Supports dynamic frequency scaling Yes

integrated graphics

Label Intel® HD Graphics 2000
Number of displays supported 2
GPU clock speed 850 MHz
Turbo clock speed 1,100 MHz

memory controller

Memory controller Built-in
Memory type
  1. DDR3-1333
  2. DDR3-1066
  3. DDR3
Channels Dual Channel
Maximum bandwidth 21,333.32 MB/s
Maximum memory size 32,768 MB


Architecture x86-64
Threads 4 threads
L2 cache 0.5 MB
L2 cache per core 0.25 MB/core
L3 cache 3 MB
L3 cache per core 1.5 MB/core
Manufacture process 32 nm
Max CPUs 1
Clock multiplier 31
Operating temperature Unknown - 69.1°C


Overclock popularity 101
Overclock review score 4.5
Overclocked clock speed 3.23 GHz
Overclocked clock speed (Water) 3.1 GHz
PassMark (Overclocked) 1,518.9
Overclocked clock speed (Air) 3.23 GHz

power consumption

Annual home energy cost 37.88 $/year
Annual commercial energy cost 93.47 $/year
Performance per watt 1.65 pt/W
Idle power consumption 73W
Peak power consumption 106.7W
Typical power consumption 98.28W


Architecture DMI
Transfer rate 5,000 MT/s
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