List of LGA 771 & 775 CPUs + Current Prices
On this page, we've combined all of Intel's quad core LGA 771 and LGA 775 CPUs into 1 table (sorted by speed). This should make it easier to compare prices and specifications if you're considering the LGA 771 to 775 MOD.
- Intel Core 2 Quad
- Intel Core 2 Extreme
- LGA 771 Xeon
- LGA 775 Xeon
Table of Contents
List of Quad Core LGA 771 & 775 CPUs
Note: The prices and links shown below are for eBay. All prices are current and are automatically updated throughout the day.
| CPU | Price (Apr 7) | Speed & Ratio | L2 Cache | FSB | TDP | Node | Codename & Socket | Stepping (sSpec) |
|---|---|---|---|---|---|---|---|---|
| $89 | 3.40 GHz 8.5x | 2 x 6 MB | 1600 | 150 W | 45nm |
| E0 (SLBBD) |
| View Sellers | ||||||||
| $35 | 3.33 GHz 10.0x | 2 x 6 MB | 1333 | 120 W | 45nm |
| E0 (SLBBF) |
| View Sellers | ||||||||
| ~ 3.20 GHz | ||||||||
| $13 | 3.17 GHz 9.5x | 2 x 6 MB | 1333 | 120 W | 45nm |
| E0 (SLBBA) C0 (SLANP) |
| View Sellers | ||||||||
| $23 | 3.20 GHz 8.0x | 2 x 6 MB | 1600 | 120 W 150 W | 45nm |
| E0 (SLBBG) C0 (SLANZ) |
| View Sellers | ||||||||
| $170 | 3.20 GHz 8.0x | 2 x 6 MB | 1600 | 136 W | 45nm |
| C1 (SLAWM) C0 (SLAN2) |
| View Sellers | ||||||||
| Sold out | 3.20 GHz 8.0x | 2 x 6 MB | 1600 | 150 W | 45nm |
| C0 (SLANY) |
| View Sellers | ||||||||
| Sold out | 3.17 GHz 9.5x | 2 x 6 MB | 1333 | 95 W | 45nm |
| E0 (SLGPG) |
| View Sellers | ||||||||
| ~ 3.00 GHz | ||||||||
| $6 | 3.00 GHz 9.0x | 2 x 6 MB | 1333 | 80 W | 45nm |
| E0 (SLBBM) C0 (SLANQ) |
| View Sellers | ||||||||
| $7 | 3.00 GHz 9.0x | 2 x 6 MB | 1333 | 120 W | 45nm |
| E0 (SLBBE) C0 (SLASB) |
| View Sellers | ||||||||
| $10 | 3.00 GHz 7.5x | 2 x 6 MB | 1600 | 80 W | 45nm |
| E0 (SLBBH) C0 (SLANR) |
| View Sellers | ||||||||
| $13 | 3.00 GHz 7.5x | 2 x 6 MB | 1600 | 120 W | 45nm |
| E0 (SLBBB) C0 (SLASA) |
| View Sellers | ||||||||
| $17 | 3.00 GHz 9.0x | 2 x 4 MB | 1333 | 150 W | 65nm |
| G0 (SLAED) B3 (SLAC3) |
| View Sellers | ||||||||
| $29 | 3.00 GHz 9.0x | 2 x 4 MB | 1333 | 130 W | 65nm |
| G0 (SLAFN) |
| View Sellers | ||||||||
| $41 | 3.00 GHz 9.0x | 2 x 6 MB | 1333 | 95 W | 45nm |
| E0 (SLB8Z) |
| View Sellers | ||||||||
| $43 | 2.93 GHz 11.0x | 2 x 4 MB | 1066 | 130 W | 65nm |
| G0 (SLACP) B3 (SL9UK) |
| View Sellers | ||||||||
| $53 | 3.00 GHz 9.0x | 2 x 6 MB | 1333 | 130 W | 45nm |
| C1 (SLAWN) C0 (SLAN3) |
| View Sellers | ||||||||
| Sold out | 3.00 GHz 9.0x | 2 x 6 MB | 1333 | 95 W | 45nm |
| E0 (SLB8W) |
| View Sellers | ||||||||
| ~ 2.83 GHz | ||||||||
| $6 | 2.80 GHz 7.0x | 2 x 6 MB | 1600 | 80 W | 45nm |
| E0 (SLBBN) C0 (SLANT) |
| View Sellers | ||||||||
| $8 | 2.83 GHz 8.5x | 2 x 6 MB | 1333 | 80 W | 45nm |
| E0 (SLBBJ) C0 (SLANS) |
| View Sellers | ||||||||
| $14 | 2.83 GHz 8.5x | 2 x 3 MB | 1333 | 95 W | 45nm |
| R0 (SLGZ4) |
| View Sellers | ||||||||
| $15 | 2.83 GHz 8.5x | 2 x 3 MB | 1333 | 95 W | 45nm |
| R0 (SLGYY) |
| View Sellers | ||||||||
| $15 | 2.83 GHz 8.5x | 2 x 6 MB | 1333 | 80 W | 45nm |
| E0 (SLBC3) C0 (SLASC) |
| View Sellers | ||||||||
| $22 | 2.83 GHz 8.5x | 2 x 6 MB | 1333 | 95 W | 45nm |
| E0 (SLB8X) C1 (SLAWZ) C0 (SLAN5) |
| View Sellers | ||||||||
| $35 | 2.83 GHz 8.5x | 2 x 3 MB | 1333 | 65 W | 45nm |
| R0 (SLGYZ) |
| View Sellers | ||||||||
| $55 | 2.83 GHz 8.5x | 2 x 6 MB | 1333 | 65 W | 45nm |
| E0 (SLGAE) |
| View Sellers | ||||||||
| $60 | 2.83 GHz 8.5x | 2 x 6 MB | 1333 | 65 W | 45nm |
| E0 (SLGPF) |
| View Sellers | ||||||||
| Sold out | 2.83 GHz 8.5x | 2 x 6 MB | 1333 | 95 W | 45nm |
| E0 (SLB8V) C1 (SLAWQ) C0 (SLAN4) |
| View Sellers | ||||||||
| 2.67 GHz | ||||||||
| $5 | 2.67 GHz 8.0x | 2 x 6 MB | 1333 | 80 W | 45nm |
| E0 (SLBBK) C0 (SLANU) |
| View Sellers | ||||||||
| $6 | 2.67 GHz 8.0x | 2 x 4 MB | 1333 | 120 W | 65nm |
| G0 (SLAEG) B3 (SLAC4) B3 (SL9YM) |
| View Sellers | ||||||||
| $9 | 2.67 GHz 8.0x | 2 x 2 MB | 1333 | 95 W | 45nm |
| R0 (SLGT6) |
| View Sellers | ||||||||
| $10 | 2.67 GHz 8.0x | 2 x 3 MB | 1333 | 95 W | 45nm |
| R0 (SLB6B) |
| View Sellers | ||||||||
| $12 | 2.67 GHz 8.0x | 2 x 3 MB | 1333 | 95 W | 45nm |
| R0 (SLB6C) |
| View Sellers | ||||||||
| $13 | 2.67 GHz 10.0x | 2 x 4 MB | 1066 | 95 W | 65nm |
| G0 (SLACS) |
| View Sellers | ||||||||
| $14 | 2.67 GHz 10.0x | 2 x 4 MB | 1066 | 95 W | 65nm |
| G0 (SLACQ) |
| View Sellers | ||||||||
| $14 | 2.67 GHz 8.0x | 2 x 6 MB | 1333 | 80 W | 45nm |
| E0 (SLBC4) C0 (SLASD) |
| View Sellers | ||||||||
| $16 | 2.67 GHz 8.0x | 2 x 6 MB | 1333 | 95 W | 45nm |
| E0 (SLB8Y) C1 (SLAX2) C0 (SLAN7) |
| View Sellers | ||||||||
| $16 | 2.67 GHz 10.0x | 2 x 4 MB | 1066 | 130 W | 65nm |
| B3 (SL9UL) |
| View Sellers | ||||||||
| $17 | 2.67 GHz 8.0x | 2 x 6 MB | 1333 | 95 W | 45nm |
| C1 (SLAWR) C0 (SLAN6) |
| View Sellers | ||||||||
| $18 | 2.67 GHz 8.0x | 2 x 2 MB | 1333 | 65 W | 45nm |
| R0 (SLGT7) |
| View Sellers | ||||||||
| $20 | 2.67 GHz 8.0x | 2 x 6 MB | 1333 | 50 W | 45nm |
| E0 (SLBBQ) |
| View Sellers | ||||||||
| $38 | 2.67 GHz 8.0x | 2 x 3 MB | 1333 | 65 W | 45nm |
| R0 (SLG9U) |
| View Sellers | ||||||||
| $40 | 2.67 GHz 8.0x | 2 x 6 MB | 1333 | 65 W | 45nm |
| C1 (SLAWY) |
| View Sellers | ||||||||
| 2.50 GHz | ||||||||
| $4 | 2.50 GHz 7.5x | 2 x 6 MB | 1333 | 50 W | 45nm |
| E0 (SLBBR) C0 (SLARP) |
| View Sellers | ||||||||
| $4 | 2.50 GHz 7.5x | 2 x 6 MB | 1333 | 80 W | 45nm |
| E0 (SLBBL) C0 (SLANV) |
| View Sellers | ||||||||
| $6 | 2.50 GHz 7.5x | 2 x 2 MB | 1333 | 95 W | 45nm |
| R0 (SLGUR) R0 (SLB5W) |
Note: SLB5W does not support Intel VT-X | View Sellers | |||||||
| $6 | 2.50 GHz 7.5x | 2 x 3 MB | 1333 | 80 W | 45nm |
| R0 (SLBC5) M0 (SLASE) |
| View Sellers | ||||||||
| $9 | 2.50 GHz 7.5x | 2 x 3 MB | 1333 | 95 W | 45nm |
| M1 (SLAWE) M0 (SLAMX) |
| View Sellers | ||||||||
| $12 | 2.50 GHz 7.5x | 2 x 3 MB | 1333 | 95 W | 45nm |
| R0 (SLB69) M1 (SLAWF) |
| View Sellers | ||||||||
| ~ 2.40 GHz | ||||||||
| $3 | 2.33 GHz 7.0x | 2 x 6 MB | 1333 | 50 W | 45nm |
| E0 (SLBBS) C0 (SLAP4) |
| View Sellers | ||||||||
| $3 | 2.33 GHz 7.0x | 2 x 4 MB | 1333 | 80 W | 65nm |
| G0 (SLAEJ) B3 (SLAC5) B3 (SL9YL) |
| View Sellers | ||||||||
| $4 | 2.33 GHz 7.0x | 2 x 6 MB | 1333 | 80 W | 45nm |
| E0 (SLBBC) C0 (SLANW) |
| View Sellers | ||||||||
| $5 | 2.33 GHz 7.0x | 2 x 2 MB | 1333 | 95 W | 45nm |
| R0 (SLG9S) M1 (SLB5M) |
Note: Does not support Intel VT-X | View Sellers | |||||||
| $7 | 2.40 GHz 9.0x | 2 x 4 MB | 1066 | 95 W 105 W | 65nm |
| G0 (SLACR) B3 (SL9UM) |
| View Sellers | ||||||||
| $8 | 2.40 GHz 9.0x | 2 x 4 MB | 1066 | 105 W | 65nm |
| G0 (SLACT) B3 (SL9UP) |
| View Sellers | ||||||||
| $15 | 2.33 GHz 7.0x | 2 x 2 MB | 1333 | 65 W | 45nm |
| R0 (SLGSS) R0 (SLG9T) |
Note: SLG9T does not support Intel VT-X | View Sellers | |||||||
| 2.13 GHz | ||||||||
| $7 | 2.13 GHz 8.0x | 2 x 4 MB | 1066 | 105 W | 65nm |
| G0 (SLACU) B3 (SL9UQ) |
| View Sellers | ||||||||
| $8 | 2.13 GHz 8.0x | 2 x 6 MB | 1066 | 40 W | 45nm |
| E0 (SLBBT) C0 (SLAP5) |
| View Sellers | ||||||||
| Sold out | 2.13 GHz 8.0x | 2 x 4 MB | 1066 | 105 W | 65nm |
| B3 (SL9UN) |
| View Sellers | ||||||||
| 2.00 GHz | ||||||||
| $4 | 2.00 GHz 6.0x | 2 x 6 MB | 1333 | 80 W | 45nm |
| E0 (SLBBP) C0 (SLAP2) |
| View Sellers | ||||||||
| $5 | 2.00 GHz 6.0x | 2 x 4 MB | 1333 | 80 W | 65nm |
| G0 (SLAEK) B3 (SLAC7) B3 (SL9YK) |
| View Sellers | ||||||||
| $5 | 2.00 GHz 6.0x | 2 x 4 MB | 1333 | 50 W | 65nm |
| G0 (SLAEN) |
| View Sellers | ||||||||
| 1.87 GHz | ||||||||
| $5 | 1.87 GHz 7.0x | 2 x 4 MB | 1066 | 50 W | 65nm |
| G0 (SLAEP) B3 (SLAC9) B3 (SLA4Q) |
| View Sellers | ||||||||
| $5 | 1.87 GHz 7.0x | 2 x 4 MB | 1066 | 80 W | 65nm |
| G0 (SLAEL) B3 (SLAC8) B3 (SL9MV) |
| View Sellers | ||||||||
| 1.60 GHz | ||||||||
| $5 | 1.60 GHz 6.0x | 2 x 4 MB | 1066 | 80 W | 65nm |
| G0 (SLAEM) B3 (SLACB) B3 (SL9XR) |
| View Sellers | ||||||||
| $7 | 1.60 GHz 6.0x | 2 x 4 MB | 1066 | 50 W | 65nm |
| G0 (SLAEQ) B3 (SLACA) B3 (SL9MT) |
| View Sellers | ||||||||
| Sold out | 1.60 GHz 6.0x | 2 x 4 MB | 1066 | 40 W | 65nm |
| G0 (SLAJE) |
| View Sellers | ||||||||
Key features and differences between Quad Core LGA 771 & 775 CPUs
Topics in this section
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.
45nm Comparison
The most important thing to notice is that the Yorkfield-6M CPUs (LGA 775) have half the cache of the others.
| Harpertown | Yorkfield-CL | Yorkfield XE | Yorkfield | Yorkfield-6M | |
|---|---|---|---|---|---|
| CPUs (where x = any digit) | Xeon X54xx, E54xx, L54xx | Xeon X33x3 | Core 2 Extreme QX9xxx |
|
|
| Socket | LGA 771 | LGA 771 |
| LGA 775 | LGA 775 |
| Microarchitecture | Penryn | Penryn | Penryn | Penryn | Penryn |
| L2 Cache | 2 × 6 MB |
| 2 × 6 MB | 2 × 6 MB |
|
| Unlocked ratio (multiplier) |  | |  | | |
| SSE4.1 | | | | | |
| Virtualization Technology (VT-x) | | | | | All (except Q8200)[a] |
| Virtualization Technology for Directed I/O (VT-d) | | | | All (except Xeons) | All (except Q9500, Q8xxx, Xeons) |
| Enhanced Intel SpeedStep Technology (EIST) | All (except E5405) | | | | |
| Demand Based Switching | All (except E5405, L5408) | | | | |
| Trusted Execution Technology (TXT) | | | | All (except Xeons) | All (except Q9500, Q8xxx, Xeons) |
| Dual CPU Configurations | | |
| | |
| Die Size | 2 × 107 mm2 |
| 2 × 107 mm2 | 2 × 107 mm2 | 2 × 82 mm2 |
| Voltage | 0.85–1.35 V | 0.85–1.35 V | 0.85–1.36 V | 0.85–1.36 V | 0.85–1.36 V |
- a Note: Some revisions of the Q8200S and Q8300 also do not support VT-x (see notes in the CPU table).
65nm Comparison
| Clovertown | Kentsfield XE | Kentsfield | |
|---|---|---|---|
| CPUs (where x = any digit) | Xeon X53xx, E53xx, L53xx | Core 2 Extreme QX6xxx |
|
| Socket | LGA 771 | LGA 775 | LGA 775 |
| Microarchitecture | Core | Core | Core |
| L2 Cache | 2 × 4 MB | 2 × 4 MB | 2 × 4 MB |
| Unlocked ratio (multiplier) | | | |
| SSE4.1 | | | |
| Virtualization Technology (VT-x) | | | |
| Virtualization Technology for Directed I/O (VT-d) | | | |
| Enhanced Intel SpeedStep Technology (EIST) | All (except E5310 & E5335) | | |
| Demand Based Switching |
| | |
| Trusted Execution Technology (TXT) | | | |
| Dual CPU Configurations | | | |
| Die Size | 2 × 143 mm2 | 2 × 143 mm2 | 2 × 143 mm2 |
| Voltage |
| 1.1–1.37 V |
|
- a Clovertown voltage range exceptions: Xeon L5335 is 1.00–1.50 V and L5318 is 0.90–1.25 V.
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.
| Stepping | Node | Released | L2 Cache | CPUs | CPUID |
|---|---|---|---|---|---|
| E0 | 45nm | August 2008 | 2 x 6 MB |
| 1067A |
| C1 | 45nm | March 2008 | 2 x 6 MB |
| 10677 |
| C0 | 45nm | November 2007 | 2 x 6 MB |
| 10676 |
| R0 | 45nm | August 2008 |
|
| 1067A |
| M1 | 45nm | March 2008 |
| Yorkfield-6M | 10677 |
| M0 | 45nm | March 2008 | 2 x 3 MB |
| 10676 |
| G0 | 65nm | April 2007 | 2 x 4 MB |
| 06FB |
| B3 | 65nm | November 2006 | 2 x 4 MB |
| 06F7 |
51 Responses
have mobo p5ql pro, really confused between x5470 vs e5450 or x5460 too,is tat extra 0.33 ghz speed really matters? as 5470 is expensive for me. waiting for its price to be reduced,by the way pls tell me 5470 wud reallly make difference from others. i use internet with many pages,play medium games ..mostly counterstrike,watch hd videos,thats all are my usage. thanks,hope i get a convincing reply. :)
@hyan, who manufactures your motherboard, like is it Gigabyte, Dell, Abit, ASus…? You only state “mobo p5ql pro” which is not enough information. However, I will assume you have the Asus P5GL Pro motherboard. All of the Xeon processors you stated are Hapertown 1333 with 12M L2 cash. Each of those cpu’s have different TDP’s and you need to know what the maximum TDP is for your motherboard. According to this websites “tested motherboard list” the Asus P5QL Pro words with the following Xeon cpu’s, : E5410, E5450, x3353. The E5450 is the fastest at 3Ghz and is listed at $14 at the moment. I’d go with the E5450. I use the E5450 on 2 of my computers and they operate great. Make sure you have the latest BIOS installed on your motherboard first.
hi,thank you so much for replying,sorry for not mentioning the manufactures name,its asus p5ql pro,and i have bought already x5470 as its price came affordable but not using it as i dont have proper cpu cooling fan yet,but i tested it after upgrading xeon bios,it worked good ,then i took ot off fearing for high temperature in 80c in summer,could you tell me if this https://www.amazon.in/Antec-A40-CPU-FAN/dp/B00HUJXWZY will be ok for this x5470 cpu,thanks
@ Hyan, yes the Antec A40 CPU cooling fan will work for the Xeon X5470 processor. Glad to know the cpu works with your motherboard. Good luck.
thanks for replying,hope it keeps my x5470 cool even during summers ,could you tell me if i use gray thermal paste which is only easy available for me here could keep cpu cool,i could change those thermal paste every once 5 months if needed,also please tell would my capacitors would be safe from heat ,as i use my computer much for browsing and steaming videos ,play countrer strike 1.6 ,thats all ,i have 3gb ram, one fan 92mm for south bridge as it was hot when i touched ,so kept it.this is the cabinet-http://www.mercury-pc.com/images/pr_ca/KM/pr_casing_km84_b.jpg
i dont have other fans,but i have removed the top rof of the cabinet hoping it would help warm air to escape. thanks for helpin me :)
I have been running a X5492 in a Gigabyte EP45T-UD3LR for several years now. Works fine with no problems.
Dell Vostro 230 Socket LGA775 Motherboard 7N90W 07N90W
Can I use the xeon x5450 x5460 processor as my motherboard model?
I will translate your answers with a dictionary
please write nice answers
Hello friends. How to put a Xeon e3-1220 v2 on a motherboard IPMH81G1 with socket Lga1155?
I have an abit AWD9d MB. It uses intel chip set 975x. What Xeon processor would work in this system/
Thank you.
I know the 975x chipset is a 800 &1066 FSB board. Automatically then the best processor you could use would be the QX6800 IF your mobo puts out enough power for it. Without knowing the max watts your CPU socket can handle, I can’t be sure. Your mobo was out in November 2006 and it ran Core 2 Duo Extremes then. Since your board was made for overclocking then the power is probably there. To answer your question, with all that in mind, a Xeon X3230 would probably work with an updated bios (if Abit has the appropriate bios update). Best research your mobo via Google.
I owe you [all] a big THANK YOU! *Better late than never* In 2015, I got a Dell Precision 390 workstation for free. It has the 0DN075 motherboard with the 975x chipset; LGA 775, & 1066 FSB. It had a Pentium D in it. I scraped some money together and got a Xeon X3210 ($18 at the time, I think) and maxed the RAM. The CPU performace was amazing compared to the old. And I was able to run Windows 7 Ultimate. FYI: I tried the BSEL mod with electrical tape on the X3210 and it did not overclock it. It said, “Can not recognize CPU” or something similar. Now I use the Prec 390 for XP, 7 (the last good Windows) and Linux Mint. I may try the QX6800 and see if I can OC with software.
I have a Foxconn G41MXE(-K) with an LGA775 socket and a Dual-core Intel Pentium E6600 over clocked to 3.45MHz. What are my options for faster processors on this motherboard? Please HELP.
That board runs at 1333 FSB with a max TDP of 105 Watts with either the 45 nm or 65 nm. The Xeon X3380 is your best bet. You could try the X5470 to see if it would work, but since it has a higher power usage it may not work and may not officially be supported by Foxconn. Also, the X5470 may require a bios mod to install its CPU code. If you do try the X5470, make sure that whomever you buy from has a friendly return policy.