Intel Xeon E5645: specs and benchmarks

Intel Xeon E5645

Summary

Intel started Intel Xeon E5645 sales 16 March 2010 at a recommended price of $294. This is Westmere-EP architecture desktop processor primarily aimed at office systems. It has 6 cores and 12 threads, and is based on 32 nm manufacturing technology, with a maximum frequency of 2670 MHz and a locked multiplier.

Compatibility-wise, this is FCLGA1366 processor with a TDP of 80 Watt. It supports DDR3-800, DDR3-1066, DDR3-1333 memory.

It provides poor benchmark performance at 6.45 percent of a leader's which is AMD Ryzen Threadripper 3990X.

General info

Of Xeon E5645 processor market type (desktop or notebook), architecture and sales start time and price.
Place in performance rating
 
Value for money (0-100)
11.09
 
Type
Server
 
Architecture codename
Westmere-EP
 
Release date
16 March 2010
 
Launch price (MSRP)
$294
 
Price now
$240
 
of 8685 (Xeon E5-4650L)

Technical specs

Xeon E5645's quantitative parameters such as cores and threads number, clocks, manufacturing process, cache size and multiplier lock state. These parameters indirectly say of Xeon E5645's performance, but to be more precise you have to review its test results.
Number of cores
6
 
Number of threads
12
 
Base frequency
2.4 GHz
 
of 4.7 (FX-9590)
Maximum frequency
2.67 GHz
 
L1 cache
64 KB (per core)
 
of 896 (Atom C3950)
L2 cache
256 KB (per core)
 
of 8192 (Opteron 3380)
L3 cache
12 MB (shared)
 
Manufacturing process technology
32 nm
 
Die size
239 mm2
 
Maximum core temperature
76 °C
 
of 110 (Atom x7-E3950)
Transistor count
1,170 million
 
of 19200 (Ryzen 7 3700)
64 bit support
+
 
VID voltage range
0.75V-1.35V
 

Compatibility

Information on Xeon E5645 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one.
Max number of CPUs in a configuration
2
 
Socket
FCLGA1366
 
Power consumption (TDP)
80 Watt
 
of 650 (Atom Z500)

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5645. You'll probably need this information if you require some particular technology.
Instruction set extensions
Intel® SSE4.2
 
AES-NI
+
 
Enhanced SpeedStep (EIST)
+
 
Turbo Boost
1.0
 
Hyper-Threading
+
 
Idle States
+
 
Demand Based Switching
+
 
PAE
40 Bit
 

Security technologies

Xeon E5645 technologies aimed at raising security, for example, by protecting against hacks.
TXT
+
 
EDB
+
 

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5645 are enumerated here.
VT-d
+
 
VT-x
+
 
EPT
+
 

Memory specs

Types, maximum amount and channel number of RAM supported by Xeon E5645.
Supported memory types
DDR3-800, DDR3-1066, DDR3-1333
 
of 4266 (Ryzen 9 4900H)
Maximum memory size
288 GB
 
Max memory channels
3
 
Maximum memory bandwidth
32 GB/s
 
of 262.26 (Xeon Platinum 9221)
ECC memory support
+
 

Benchmark performance

Non-gaming benchmarks performance of Xeon E5645. Overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance

6.45

Passmark

5154

Mining hashrates

Cryptocurrency mining performance of Xeon E5645. Usually measured in megahashes per second.
Bitcoin / BTC (SHA256)
28 Mh/s
 
 

Game benchmarks

Let's see how good Xeon E5645 is for gaming compared with game system requirements. Remember that sometimes official requirements may reflect real performance inaccurately.

Relative perfomance

Overall Xeon E5645 performance compared to nearest competitors. All CPU types participate.

User rating

Here are CPU ratings given by our user. You can rate both processors yourself.

Advices and comments

Here you can ask a question about Xeon E5645, agree or disagree with our judgements, or report an error or mismatch.
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