List of Intel LGA 771 Xeon Processors + Current Prices

MODs

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This page has detailed specs and current prices for all of Intel's LGA 771 Xeon processors.

If you're planning on doing the LGA 771 to 775 MOD and want to compare LGA 771 and LGA 775 CPU prices, check out the previous link.

Quad Core LGA 771 Xeon CPUs

List of Quad Core Xeons

Prices are automatically updated throughout the day.

CPUPrice
(Dec 9)
Speed
& Ratio
L2 CacheFSBTDPNodeCodename
& Socket
Stepping
(sSpec)
  • Xeon X5492
$72 3.40 GHz
8.5x
2 x 6 MB 1600 150 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBD)
View Sellers
  • Xeon X5470
$39 3.33 GHz
10.0x
2 x 6 MB 1333 120 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBF)
View Sellers
  • Xeon X5482
$30 3.20 GHz
8.0x
2 x 6 MB 1600 120 W
150 W
45nm
  • Harpertown
  • LGA 771
E0 (SLBBG)
C0 (SLANZ)
View Sellers
  • Core 2 Extreme QX9775
$145 3.20 GHz
8.0x
2 x 6 MB 1600 150 W45nm
  • Yorkfield XE
  • LGA 771
C0 (SLANY)
View Sellers
  • Xeon X5460
$15 3.17 GHz
9.5x
2 x 6 MB 1333 120 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBA)
C0 (SLANP)
View Sellers
3.00 GHz
  • Xeon X5472
$14 3.00 GHz
7.5x
2 x 6 MB 1600 120 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBB)
C0 (SLASA)
View Sellers
  • Xeon X5450
$14 3.00 GHz
9.0x
2 x 6 MB 1333 120 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBE)
C0 (SLASB)
View Sellers
  • Xeon E5472
$16 3.00 GHz
7.5x
2 x 6 MB 1600 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBH)
C0 (SLANR)
View Sellers
  • Xeon E5450
$17 3.00 GHz
9.0x
2 x 6 MB 1333 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBM)
C0 (SLANQ)
View Sellers
  • Xeon X5365
$29 3.00 GHz
9.0x
2 x 4 MB 1333 150 W65nm
  • Clovertown
  • LGA 771
G0 (SLAED)
B3 (SLAC3)
View Sellers
~ 2.83 GHz
  • Xeon E5462
$11 2.80 GHz
7.0x
2 x 6 MB 1600 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBN)
C0 (SLANT)
View Sellers
  • Xeon E5440
$11 2.83 GHz
8.5x
2 x 6 MB 1333 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBJ)
C0 (SLANS)
View Sellers
  • Xeon X3363
$25 2.83 GHz
8.5x
2 x 6 MB 1333 80 W45nm
  • Yorkfield-CL
  • LGA 771
E0 (SLBC3)
C0 (SLASC)
View Sellers
CPUPrice
(Dec 9)
Speed
& Ratio
L2 CacheFSBTDPNodeCodename
& Socket
Stepping
(sSpec)
2.67 GHz
  • Xeon X5355
$9 2.67 GHz
8.0x
2 x 4 MB 1333 120 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEG)
B3 (SLAC4)
B3 (SL9YM)
View Sellers
  • Xeon E5430
$9 2.67 GHz
8.0x
2 x 6 MB 1333 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBK)
C0 (SLANU)
View Sellers
  • Xeon X3353
$20 2.67 GHz
8.0x
2 x 6 MB 1333 80 W45nm
  • Yorkfield-CL
  • LGA 771
E0 (SLBC4)
C0 (SLASD)
View Sellers
  • Xeon L5430
$22 2.67 GHz
8.0x
2 x 6 MB 1333 50 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBQ)
View Sellers
2.50 GHz
  • Xeon L5420
$5 2.50 GHz
7.5x
2 x 6 MB 1333 50 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBR)
C0 (SLARP)
View Sellers
  • Xeon E5420
$6 2.50 GHz
7.5x
2 x 6 MB 1333 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBL)
C0 (SLANV)
View Sellers
  • Xeon X3323
$10 2.50 GHz
7.5x
2 x 3 MB 1333 80 W45nm
  • Yorkfield-CL
  • LGA 771
R0 (SLBC5)
M0 (SLASE)
View Sellers
2.33 GHz
  • Xeon E5410
$4 2.33 GHz
7.0x
2 x 6 MB 1333 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBC)
C0 (SLANW)
View Sellers
  • Xeon E5345
$6 2.33 GHz
7.0x
2 x 4 MB 1333 80 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEJ)
B3 (SLAC5)
B3 (SL9YL)
View Sellers
  • Xeon L5410
$8 2.33 GHz
7.0x
2 x 6 MB 1333 50 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBS)
C0 (SLAP4)
View Sellers
2.13 GHz
  • Xeon L5408
$16 2.13 GHz
8.0x
2 x 6 MB 1066 40 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBT)
C0 (SLAP5)
View Sellers
CPUPrice
(Dec 9)
Speed
& Ratio
L2 CacheFSBTDPNodeCodename
& Socket
Stepping
(sSpec)
2.00 GHz
  • Xeon E5405
$3 2.00 GHz
6.0x
2 x 6 MB 1333 80 W45nm
  • Harpertown
  • LGA 771
E0 (SLBBP)
C0 (SLAP2)
View Sellers
  • Xeon E5335
$5 2.00 GHz
6.0x
2 x 4 MB 1333 80 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEK)
B3 (SLAC7)
B3 (SL9YK)
View Sellers
  • Xeon L5335
$12 2.00 GHz
6.0x
2 x 4 MB 1333 50 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEN)
View Sellers
1.87 GHz
  • Xeon E5320
$3 1.87 GHz
7.0x
2 x 4 MB 1066 80 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEL)
B3 (SLAC8)
B3 (SL9MV)
View Sellers
  • Xeon L5320
$9 1.87 GHz
7.0x
2 x 4 MB 1066 50 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEP)
B3 (SLAC9)
B3 (SLA4Q)
View Sellers
1.60 GHz
  • Xeon E5310
$3 1.60 GHz
6.0x
2 x 4 MB 1066 80 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEM)
B3 (SLACB)
B3 (SL9XR)
View Sellers
  • Xeon L5310
$7 1.60 GHz
6.0x
2 x 4 MB 1066 50 W65nm
  • Clovertown
  • LGA 771
G0 (SLAEQ)
B3 (SLACA)
B3 (SL9MT)
View Sellers
  • Xeon L5318
Sold out 1.60 GHz
6.0x
2 x 4 MB 1066 40 W65nm
  • Clovertown
  • LGA 771
G0 (SLAJE)
View Sellers

Key features and differences

The CPUs shown below are grouped by codename, since most CPUs with the same codename are very similar. You can find the codename for each processor in the main CPU table.

The main things to notice are that the 65nm Clovertown CPUs use an older microcarchitecture, have less L2 cache, and do not support the SSE4.1 instruction.

 HarpertownYorkfield-CLYorkfield XEClovertown
Processor FamilyXeonXeonCore 2 ExtremeXeon
CPUs
(where x = any digit)
  • X54xx
  • E54xx
  • L54xx
X33x3QX9775
  • X53xx
  • E53xx
  • L53xx
Node45nm45nm45nm65nm
MicroarchitecturePenrynPenrynPenrynCore
L2 Cache2 × 6 MB
  • 2 × 6 MB
  • 2 × 3 MB
2 × 6 MB2 × 4 MB
Unlocked ratio (multiplier)Not supportedNot supportedSupportedNot supported
SSE4.1SupportedSupportedSupportedNot supported
Virtualization Technology (VT-x)SupportedSupportedSupportedSupported
Virtualization Technology for Directed I/O (VT-d)Not supportedNot supportedNot supportedNot supported
Enhanced Intel SpeedStep Technology (EIST)Supported All (except E5405)SupportedSupportedSupported All (except E5310, E5335)
Demand Based Switching Supported All (except E5405, L5408)Not supportedNot supported
  • Supported X53xx, E5345, E5320, L5318
  •  
  • Not supported All others
Trusted Execution Technology (TXT)Not supportedNot supportedNot supportedNot supported
Dual CPU ConfigurationsSupportedNot supportedSupportedSupported
Die Size2 × 107 mm2
  • X3323:
    2 × 82 mm2
  •  
  • All others:
    2 × 107 mm2
2 × 107 mm22 × 143 mm2
Voltage0.85–1.35 V0.85–1.35 V0.85–1.36 V
  • L53xx[a]:
    1.10–1.25 V
  •  
  • All others:
    1.00–1.50 V
  • a Clovertown voltage range exceptions: Xeon L5335 is 1.00–1.50 V and L5318 is 0.90–1.25 V.

List of CPU steppings (revisions) & CPUID information

If you're unsure what a stepping is, Intel basically creates a new stepping (or revision) whenever they make a major change to a processor. This usually fixes bugs, adds new features, reduces power consumption, or improves overclocking.

SteppingNodeReleasedL2 CacheCPUsCPUID
E045nmAugust 20082 x 6 MB
  • Harpertown
  • Yorkfield-CL
1067A
C045nmNovember 20072 x 6 MB
  • Harpertown
  • Yorkfield-CL
  • Yorkfield XE
10676
R045nmAugust 2008
  • ≤ 2 x 3 MB
  • Yorkfield-CL
1067A
M045nmMarch 20082 x 3 MB
  • Yorkfield-CL
10676
G065nmApril 20072 x 4 MB
  • Clovertown
06FB
B365nmNovember 20062 x 4 MB
  • Clovertown
06F7

8 Responses

  • Job CF September 2, 201411:27 am

    The most comprehensive and useful table of LGA 771 Xeons I have seen on the net.
    Well done and thank you!

    Reply
    • syn September 2, 201412:18 pm

      No problem. Glad it’s useful.

      Reply
      • Eric September 21, 20149:37 am

        Hi Don,

        I would like to ask a trivial question. I have an ancient Gigabyte 965P DS3 rev 1.0 motherboard and this one according to its CPU support list is only good for 65nm CPUs with rated TDP of 130W and FSB of 1066MHz.

        Can i get a Xeon CPU with an erstwhile higher FSB say 1333MHz? the two 65nm Clovertown Xeons with FSB of 1066MHz is at best inferior to my existing Q6600 on few counts.

        Regards

        Reply
        • syn September 21, 201411:53 am

          Hey, Eric. That motherboard supports overclocking, so you can probably overclock the FSB to 1333 (search for a core 2 quad overclocking guide for more info on how to do this). If you don’t overclock it, it’s possible the system will run the processor by default at a 1066 FSB speed, which would reduce your CPU speed to 2.4 GHz (assuming you were using the 3.0 GHz Xeon X5365).

          The way the CPU speed is calculated is FSB * CPU Ratio / 4, which equals 1066 * 9 / 4 = 2.4 GHz for that processor.

          Reply
          • Eric September 22, 201410:33 am

            Thanks for reminding Don. As a matter of fact, yes i am overclocking the said Q6600 right not. Something which i am not too sure really. I was following you guide and you said that the Xeon shouldn’t have a TDP which exceed that of CPUs supported by the motherboard.

            http://i22.photobucket.com/albums/b309/happily1986/CPUSupportList_zps68122514.png

            The absolute top end CPU supported by this motherboard is the QX6800 which has a wattage/TDP of 130W.

            Can i really go for X5365? I would love to get it if it were OK.

            Thanks

            Regards

          • syn September 22, 201412:33 pm

            Some prebuilt computers like Dell won’t boot if you use a CPU with a TDP higher than it officially supports. However, if you have an overclocking motherboard, it probably doesn’t have this limit. Additionally, if it supports 130 W, it will probably support 150 W. Just make sure you have a good enough heatsink and fan.

  • Jake jokes July 30, 20159:04 am

    Please answer this but can I put xeon e5472 inside my dell optiplex 755 tower pc specs: 8gb ram , windows 8.1 I really want to upgrade from my crappy core 2 duo

    Reply
  • Cheung October 15, 201512:01 am

    Hi Don,

    I would like to ask whether my an ancient foxconn g33m02 motherboard and this one according to its CPU support list is only good for 65nm CPUs with rated TDP of 80W and FSB of 1333MHz.

    Can i get a Xeon CPU X5270 on my pc?

    Regards

    Reply
  • Henri May 13, 20165:26 am

    Can I upgrade my mac pro 1,1 (2006) wit two dual core xeon cpus (stock as came out in ’06) to 2 quad core x5355 xeon cpus (2.66 Ghx each) ?

    Reply
  • Dave Burton June 8, 20164:52 pm

    The X3380 appears to be a 3.16 GHz processor which is very similar to the X5460, except that:|
    1. It’s in an LGA775 package instead of L771.
    2. It’s a (slightly newer) Yorkfield design, rather than Harpertown.
    3. It’s 95W TDP instead of 120W.
    4. It probably doesn’t support dual processors.
    5. It seems to be rare in the wild.

    Reply

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