Intel Core i7 3820 | Released February, 2012 |
- 3.6 GHz
- Quad core
- Unlocked
| 8.5 Out of 10 |  |
by Legit Reviews (Feb, 2012)The performance of the Intel Core i7-3820 was significantly better thanks to overclocking as one could imagine.
by Legit Reviews (Feb, 2012)By reaching 4.5 GHz with minimal effort and with only aftermarket air cooling how can you not have fun with the Core i7-3820?
CPUBoss Review Our evaluation of the Intel Core i7 3820
Performance | |
Benchmark performance using all cores | |
| Cinebench R10 32-bit, Passmark, GeekBench and x264 HD 4.0 (Pass 1) | |
Single-core Performance | |
Individual core benchmark performance | |
| Cinebench R10 32-bit (1-core), Passmark (Single Core) and x264 HD 4.0 (Pass 2) | |
Overclocking | |
How much speed can you get out of the processor? | |
| Passmark (Overclocked), Unlocked, Maximum Overclocked Clock Speed (Air) and 2 more | |
Value | |
Are you paying a premium for performance? | |
| Performance Per Dollar | |
| 8.5 | CPUBoss Score |
Performance, Single-core Performance, Overclocking and Value | |
Benchmarks Real world tests of the Intel Core i7 3820
GeekBench
x264 HD 4.0
3D Mark 11 (Physics)
Cinebench R10 32-Bit
by Tech Radar (Jan, 2012)Thanks to the extra couple of cores in the mid-range Sandy Bridge E chip, it takes a lead in the multi-threaded Cinebench rendering and X264 encoding tests.
sysmark 2007 (overall)
Passmark
by PCMag (Mar, 2012)But compared with the Core i7-3830K, you won’t see much of a difference in single-threaded applications: Both chips scored the same (1.53) in the CineBench R11.5 single-core test, showing where you can save money if you don’t heavily depend on highly threaded programs.
Reviews Word on the street for the Intel Core i7 3820
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Overall | Out of 10 | |
What People Are Saying Give it to me straight
Socket Type
by Legit Reviews (Feb, 2012)Gamers and enthusiasts that need more than the 16 lanes of PCI-Express that Sandy Bridge processors offer should also look to LGA2011 as it has 40 integrated PCI-E lanes along with native PCI-E 3.0 support.
by 01TECH--The-POWER-is-Silent (Feb, 2013)I used the Thermaltake Extreme Water 2.0 and a Thermaltake Level 10 GTS and with excellent cable management Stock Temps: 28c idle and 38c 100% load.
by Francis-Murray (Feb, 2013)I currently have 2 i5s and a 6 core amd in my house this i7 even though it is the lowest of the LGA2011s can out perform all of them.
Socket
by Terry-Rock--Saabjock (Jul, 2012)I also purchased the fan retention clamp pn# RR-ACCY-2011-R1 for my existing Cooler-Master Hyper212+ to allow it's usage on the socket 2011 board.
by Legit Reviews (Feb, 2012)We picked the 1.25x profile as it goes up to 4.63 GHz versus the 1.00x profile that it went up to.
by elmorejohn46 (May, 2013)I used to run it like that 24 x 7 but see no reason to since it is fast enough at 4.3gigs.
Multicore
by Tech Radar (Jan, 2012)On core-for-core performance, you're not getting much extra for your Sandy Bridge E money.
by Tech Radar (Jan, 2012)But that means it's still bigger than the previous generation's Gulftown hex-core CPUs, the entire Sandy Bridge lineup and even AMD's chunky quad-module Bulldozer chips.
by Romen (Jan, 2013)Didnt want to go six core just yet so this was a no brainier.
Performance
by Roland-Mata (Feb, 2013)I could not be happier with this CPU's overall performance and reliability.
by Francis-Murray (Feb, 2013)It is a great buy for the money and its benchmark/ price makes it a great deal as well.
by Tech Radar (Jan, 2012)The Core i7 3820 actually posts some decent scores but it's the Core i7 2700K that makes the best impression thanks to some stellar comparative benchmarks.
Price
by TheITMan (Jun, 2012)It's really fast, and from what I've seen the best processor you can get (aside from it's big brother which is a lot more expensive).
by Trevor-Hargraves (Nov, 2012)I have been running many different VMs on this processor just messing around and it works like a champ, definitely worth the price!
by R.-Walker--rw266Even cheaper brands like e.Machines or Asus are far better made.
Specifications Full list of technical specs
summary
| Clock speed | 3.6 GHz |
|---|---|
| Turbo clock speed | 3.8 GHz |
| Cores | Quad core |
| Socket type | LGA 2011 |
| Is unlocked | Yes |
| Is hyperthreaded | Yes |
features
| Has a NX bit | Yes |
|---|---|
| Supports trusted computing | No |
| Has vitualization support | Yes |
| Instruction-set-extensions |
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| Supports dynamic frequency scaling | Yes |
gpu
| GPU | None |
|---|---|
| Label | None |
| Latest DirectX | None |
| Number of displays supported | None |
| GPU clock speed | None |
| Turbo clock speed | None |
| 3DMark06 | None |
memory controller
| Memory controller | Built-in |
|---|---|
| Memory type |
|
| Channels | Quad Channel |
| Supports ECC | No |
| Maximum bandwidth | 51,200 MB/s |
| Maximum memory size | 65,536 MB |
details
| Architecture | x86-64 |
|---|---|
| Threads | 8 threads |
| L2 cache | 1 MB |
| L2 cache per core | 0.25 MB/core |
| L3 cache | 10 MB |
| L3 cache per core | 2.5 MB/core |
| Manufacture process | 32 nms |
| Transistor count | 1,270,000,000 |
| Max CPUs | 1 |
| Clock multiplier | 36 |
| Voltage range | 0.6 - 1.35V |
| Operating temperature | Unknown - 66.8°C |
overclocking
| Overclock popularity | 142 |
|---|---|
| Overclock review score | 5 |
| Overclocked clock speed | 4.83 GHz |
| Overclocked clock speed (Water) | 4.92 GHz |
| PassMark (Overclocked) | 5,531.8 |
| Overclocked clock speed (Air) | 4.83 GHz |
power consumption
| TDP | 130W |
|---|---|
| Annual home energy cost | 49.49 $/year |
| Annual commercial energy cost | 138.93 $/year |
| Performance per watt | 14.03 pt/W |
| Idle power consumption | 82.6W |
| Peak power consumption | 158.6W |
| Typical power consumption | 139.6W |
bus
| Architecture | DMI |
|---|---|
| Number of links | 1 |
| Transfer rate | 5,000 MT/s |
