Aside from ECC memory support and four extra PCIe lanes, the Xeon E3s are very much similar to the third-gen Core processors we introduced in Intel Core i7-3770K Review: A Small Step Up For Ivy Bridge, architecturally.
There are more Xeon E3s, though. Intel already launched 11 different models with thermal ceilings as low as 17 W and as high as 87 W.
| Xeon E3 | Base Clock | Max. Turbo Boost | L3 Cache | Cores / Threads | HD Graphics | DDR3 | Power |
|---|---|---|---|---|---|---|---|
| No Integrated Graphics | |||||||
| -1290 v2 | 3.7 GHz | 4.1 GHz | 8 MB | 4 / 8 | None | 1600 / 1333 | 87 W |
| -1280 v2 | 3.6 GHz | 4 GHz | 8 MB | 4 / 8 | None | 1600 / 1333 | 69 W |
| -1270 v2 | 3.5 GHz | 3.9 GHz | 8 MB | 4 / 8 | None | 1600 / 1333 | 69 W |
| -1240 v2 | 3.4 GHz | 3.8 GHz | 8 MB | 4 / 8 | None | 1600 / 1333 | 69 W |
| -1230 v2 | 3.3 GHz | 3.7 GHz | 8 MB | 4 / 8 | None | 1600 / 1333 | 69 W |
| -1220 v2 | 3.1 GHz | 3.5 GHz | 8 MB | 4 / 4 | None | 1600 / 1333 | 69 W |
| -1220L v2 | 2.3 GHz | 3.5 GHz | 3 MB | 2 / 4 | None | 1600 / 1333 | 17 W |
| Integrated Graphics | |||||||
| -1275 v2 | 3.5 GHz | 3.9 GHz | 8 MB | 4 / 8 | P4000 | 1600 / 1333 | 77 W |
| -1265L v2 | 2.5 GHz | 3.5 GHz | 8 MB | 4 / 8 | 2000 | 1600 / 1333 | 45 W |
| -1245 v2 | 3.4 GHz | 3.8 GHz | 8 MB | 4 / 8 | P4000 | 1600 / 1333 | 77 W |
| -1225 v2 | 3.2 GHz | 3.6 GHz | 6 MB | 4 / 4 | P4000 | 1600 / 1333 | 77 W |
Three SKUs are rated at 77 W. Like the desktop chips bearing similar TDPs, these feature processor-based graphics (referred to as HD Graphics P4000). A fourth chip bears a lower 45 W ceiling, but runs at more conservative clock rates and sports HD Graphics 2000 instead.
The remaining seven Xeon E3s ship without graphics enabled, allowing Intel to scale back its thermal limits. Five of the products are rated at 69 W. A sixth gives up two of its cores to slip in at 17 W, and the seventh goes all-out with a 3.7 GHz base frequency, nudging power up to 87 W for the sake of performance.
What’s In A Name?
Given so many models differentiated in so many ways, it’s worth revisiting Intel’s nomenclature. Of course, we’re glad to see it using the same structure as last year. From my look at the Xeon E5s a few months back:
First, you have the brand, Xeon. Easy enough. Then there’s the product line: E3, E5, or E7. Again, we get the general sense that E3 is intended for entry-level single-socket workstations and servers, while E5 now spans a broader range from single- to quad-socket systems. The E7s cover two-, four-, and eight-socket servers.
The first digit you encounter specifies wayness, or the maximum number of CPUs in a node (that’s 1, 2, 4, or 8).
The second is indicative of socket type. Somewhat confusingly, Intel plans to use the numbers 2, 4, 6, and 8 moving forward. However, the actual interface corresponding to each digit may change. At least for 2012, we end up with the following associations:
2 = LGA 1155
4 = LGA 1356
6 = LGA 2011
8 = LGA 1567
The last two numbers are SKU designators like 10, 20, 30, and so on. Although there’s no formula to tell you why one chip might be a 50 and another a 70, Intel says it uses a combination of core count, cache size, clock rate, QPI data rates, and so on to classify each chip.
Certain models might also receive a single-letter suffix. For example, a model ending in L is meant as a low-power part. The CPUs we’re testing today are flagged as workstation models with a W suffix.
Finally, in the future, Intel plans to use a version number after the model name like v2 or v3 to identify generational progression. Ivy Bridge-based CPUs will be the first to employ those.
The time has come for those first v2-branded Ivy Bridge-based models, which simply succeed the first-gen parts. Also, two of the new Xeon E3s bear an L suffix, indicating their suitability in low-power (17 and 45 W) environments. Lastly, notice that the graphics-equipped chips all have names that end in a “5”, while the others end with a “0”.
Thus, it’s easy to interpret something like Xeon E3-1240 v2, a single-socket, LGA 1155-capable CPU roughly in the line-up’s middle. The “0” at the end tells us it doesn’t include processor graphics, and the lack of a suffix indicates standard voltage, making it a 69 W offering.
- Ivy Bridge Finds Its Way Into Servers And Workstations
- Intel’s Second-Gen Xeon E3 Processor Family
- Platform Support: Three Old Chipsets, C216, And Memory Compatibility
- Test Setup And Benchmarks
- Benchmark Results: Adobe CS 5.5
- Benchmark Results: Rendering
- Benchmark Results: Transcoding
- Benchmark Results: Productivity
- Power Consumption
- Xeon E3-1200 v2 Is A Power Story, Not A Performance One


Need Ivy Bridge Goes budget.
Still Waiting this.... i3, Pentium G
Need Ivy Bridge Goes budget.
Still Waiting this.... i3, Pentium G
I went with a Sandybridge E5-1620 + discrete graphics. Twice the memory bandwidth. Twice the PCIe lanes. Comparable price. And the raw performance of the cores is only a couple % slower. A good tradeoff for GPU compute.
You don't buy Xeons for performance, you buy them for reliability. The performance for clock speed is exactly the same.
If you need the single-threaded performance, you need it. You can't get that performance by combining multiple systems. In servers or render farms, you can just add a few more machines to make up for the lesser performance, because they are dealing with tasks that are extremely well threaded – so you don't buy the fastest option, you buy the best value option. But in some cases, the single threaded performance is more important (certain workstation tasks) or you are limited to one system (many workstation tasks), so the performance matters more than value until the performance stops making a significant difference.
And I wouldn't say that it is better value, rather I'd say that it is necessary for the extra reliability.
Thanks.
Thanks.
It does whatever it wants.
AMD or ARM-BASED are not serious competitors at least for about next 2 years I guess.
I'm liking the v2 moniker; instead of inventing new codes, is it so hard to just attach a suffix like a version number of an a/b/c etc.? That's enough to convince people that it's comparable to an older model in speed, socket type etc. but the version number will denote improved performance.
4 = LGA 1356
6 = LGA 2011
8 = LGA 1567
Intel: Compatibility? Standards? Screw that.
Translation to Real World - One thing that has often disturbed me is the duration of many of these benches, my experience is that they often either aren't relevant or worst aren't a good measure to real world jobs which often last for HOURS not 1~2 minutes. For comparison sake and perhaps scaling it would be nice to have a 'Part 2' with E5's and UP/DP/MP.
It took me a half cup of coffee to figure out why you choose the E3-1290, I got it once I realized the clocks.
Using Stock clocks the Ivy Bridge is a good step in the right direction, but other than it's Litho it's hard for me still to consider it a 'Tock'. I'm hoping the Haswell will correct some of the IB shortcomings.
And I wouldn't say that it is better value, rather I'd say that it is necessary for the extra reliability.
Okay, so basically it is that thing I said (the need for performance being that great). And yeah, I worded the whole 'value' bit pretty poorly, but you seem to have caught on to what I was getting at. Thanks!
Being a consumer with no knowledge of the enterprise/server sector of hardware, it's a bit difficult to see how something so seemingly small can be worth so much, but I often forget that businesses have a lot more money to spend than individuals like myself.
It depends, supposedly Q2 2013 but if the Haswell makes the Ivy Bridge-EP superfluous then it's doubtful it will ever be produced.
If you can stomach guesses and utter conjecture then here's an interesting post with external links in an effort to prove or disprove - http://forums.anandtech.com/showthread.php?t=2259752
E5 is the full server version of Sandy Bridge. The equivalent won't be released for Ivy Bridge until next year, so the comparison isn't valid. This is just some re-badged client Ivy Bridge parts with minor enhancements.
FYI you wasted money if you bought E5 for home use. Overclockability, which Xeons don't have, is more important that memory bandwidth or pci-e lanes.