HP 637345-B21 3.06Ghz Processor
If you need a large quantity of 637345-B21 product - call us at +1 (347) 470 6982 or request a quote at live chat and our sales manager will contact you shortly.
Looking for assistance? Connect with one of our experts
FREE Shipping. We are accepting NET 30 Days Purchase Orders. Get a decision in seconds, without affecting your credit.
3 of 3

HP 637345-B21 3.06Ghz 6.40GT/S QPI 12MB L3 Cache Intel Xeon Bulk

Availability: In Stock
Part Number#: 637345-B21
List Price was: $453.49
Your Price:
You Save: $258.49 (57% off)

5% Discount on Checkout

New Bulk Pack

Short Description:
HP 637345-B21 3.06Ghz 6.40GT/S QPI 12MB L3 Cache Intel Xeon X5675 6 Core Processor | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
30 Days

Overview of the HP 637345-B21 Processor

The HP 637345-B21 is a central processing unit (CPU) that was manufactured by Intel Corporation. It is part of the Intel Xeon series of processors and is designed to deliver high performance for demanding computing tasks. In this article, we will explain in detail the specifications and features of the HP 637345-B21 3.06Ghz 6.40GT/S QPI 12MB L3 Cache Intel Xeon X5675 6 Core Processor.

Clock Speed and Cores

The HP 637345-B21 has a clock speed of 3.06Ghz, which refers to the frequency at which the processor can execute instructions. This clock speed is quite high, making the CPU ideal for demanding applications such as scientific simulations, video editing, and gaming.

In addition to its high clock speed, the HP 637345-B21 also has 6 cores. A core refers to a processing unit within the CPU that can execute instructions independently. Having multiple cores allows the CPU to process more instructions simultaneously, resulting in faster performance.

QPI and Cache

The HP 637345-B21 also features a 6.40GT/S QPI (QuickPath Interconnect) bus. The QPI is a high-speed interconnect that allows the CPU to communicate with other components in the computer, such as the memory and input/output devices. The 6.40GT/S rating indicates that the QPI can transfer data at a rate of 6.4 gigatransfers per second, which is quite fast.

Another important feature of the HP 637345-B21 is its 12MB L3 cache. The cache is a small amount of memory that is located on the CPU itself and is used to store frequently accessed data. Having a large cache can significantly improve performance by reducing the amount of time the CPU spends waiting for data to be fetched from main memory.

Manufacturing Process and Thermal Design Power

The HP 637345-B21 was manufactured using Intel's 32nm manufacturing process. This process allows for the creation of transistors that are smaller and more energy-efficient than previous generations, resulting in a CPU that is faster and more power-efficient.

The thermal design power (TDP) of the HP 637345-B21 is 95 watts. TDP refers to the amount of heat that a CPU produces under normal operation. A lower TDP generally indicates that a CPU is more power-efficient and generates less heat, which can be important for applications where heat dissipation is a concern.

Compatibility and Upgradeability

The HP 637345-B21 is compatible with a wide range of computer systems, including servers and workstations. It uses the LGA 1366 socket, which is a common socket for Intel Xeon processors. This means that it can be installed in many existing systems without the need for a motherboard upgrade.

In terms of upgradeability, the HP 637345-B21 is limited by the LGA 1366 socket. This means that if you want to upgrade to a newer processor with a different socket, you will need to replace the motherboard as well. However, the CPU can still be a worthwhile upgrade for older systems that use the LGA 1366 socket.

Overall, the HP 637345-B21 3.06Ghz 6.40GT/S QPI 12MB L3 Cache Intel Xeon X5675 6 Core Processor is a high-performance CPU that is designed for demanding computing tasks. With its high clock speed, 6 cores, and large cache, it can handle a wide range of applications with ease. Its compatibility with many existing computer systems and LGA 1366 socket make it a worthwhile upgrade for older systems.

General Information for this HP 637345-B21

  • Manufacturer: HP
  • Model Number or SKU# 637345-B21
  • Product Type: Processor

Technical Information

  • Processor Type Server
  • Series Xeon Processor
  • Core Model Type/ProcNo. X5675
  • Processor Code Name Westmere EP
  • Core Stepping B1
  • Manufacturing Technology 32 nm
  • CPU ID String 206C2
  • Clock Speed 3.06 GHz
  • L3 Cache Size 12 MB
  • Front Side Bus / QuickPath Interconnect 6.40 GT/s QPI
  • Thermal Power 95 Watts
  • VID Voltage Range 0.750V-1.350V
  • CPU Socket Type LGA 1366
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
30 Days

About New Bulk Pack Products

New Bulk Pack products come with clamshell boxes and do not have any manufacturer warranty. Many times manufacturers disassemble whole units to use parts or pulled from a new system. Typically, this product doesn't come with software or instructions unless indicated and no Manufacturer’s genuine warranty. You can take note these are not brand new products.

Please choose your location for calculate shipping cost.


ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.


Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days

UPS 3 Day Select®
Estimated delivery time: 3 business days

UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM

UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.

UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM

UPS Next Day Air® First Overnight - Early A.M
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.

UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday

FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
  • We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
  • If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
  • You can estimate the shipping cost from the products detail page, also available on the checkout page
  • The shipping cost depends on box dimensions, weight, and zip/postal code
  • To get a FedEx® delivery service you need to mention it on the checkout page notebox.
  • For urgent shipments, please contact our customer service.
  • Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.