Original Link: https://www.anandtech.com/show/5537/intel-releases-core-i73820
Intel Releases Core i7-3820
by Kristian Vättö on February 14, 2012 2:05 PM EST- Posted in
- CPUs
- Intel
- Sandy Bridge E
Intel has finally filled out the Sandy Bridge E lineup by releasing the Core i7-3820. The initial Sandy Bridge E lineup launched back in November 2011 and it consisted of two SKUs, the i7-3960X and i7-3930K. While the i7-3820 wasn't released until this week, we reviewed it over a month ago, so head there for a longer analysis. The table below summarizes the current Sandy Bridge E lineup:
Processor | Core Clock | Cores / Threads | L3 Cache | Max Turbo | Max Overclock Multiplier | TDP | Price |
Intel Core i7 3960X | 3.3GHz | 6 / 12 | 15MB | 3.9GHz | 57x | 130W | $999 |
Intel Core i7 3930K | 3.2GHz | 6 / 12 | 12MB | 3.8GHz | 57x | 130W | $583 |
Intel Core i7 3820 | 3.6GHz | 4 / 8 | 10MB | 3.9GHz | 45x | 130W | $294 |
The short summary is that i7-3820 is Sandy Bridge E on a budget. In terms of CPU performance and price, it's equivalent to the i7-2600(K) but provides higher I/O performance due to the quad-channel memory and 40 PCIe 3.0 lanes. Anand summed it up nicely in his review, so we'll just repost here.
There are three reasons why you'd want the Core i7-3820:
- You need PCIe 3.0 today and/or you need more PCIe lanes than a Core i7-2600K can provide.
- You need tons of memory bandwidth for a particular application.
- You want a 2600K but you need a platform that can support more memory (32GB+).
So in general, most users will be better off with a LGA 1155 based platform. While the i7-3820 is actually cheaper than the i7-2600K, the total price of the platform is not. LGA 1155 based motherboards go for as little as ~$50 (e.g. Gigabyte GA-H61M-DS2). If you want more features such as Intel Rapid Storage Technology, you can get a Z68 based motherboard for around $90 (e.g. ASRock Z68M/USB3). In contrast, the cheapest LGA 2011 based motherboard starts at $210. Unless you benefit from the extra features that Sandy Bridge E offers, your money is better spent else (e.g. on an SSD).
Source: Intel