Intel Xeon E5645 vs X5672

Intel Xeon E5645
Intel Xeon X5672

General info

Comparing Xeon E5645 and Xeon X5672 processor market type (desktop or notebook), architecture and sales start time and price.
Place in performance rating
 
Value for money (0-100)
11.08
 
9.41
Type
Server
 
Server
Architecture codename
Westmere-EP
 
Westmere-EP
Release date
16 March 2010
 
14 February 2011
Launch price (MSRP)
$294
 
$115
Price now
$240
 
$284

Technical specs

Xeon E5645 and Xeon X5672 quantitative parameters such as cores and threads number, clocks, manufacturing process, cache size and multiplier lock state. These parameters indirectly say of Xeon E5645 and Xeon X5672 performance, but for precise assessment you have to consider their test results.
Number of cores
6
 
4
Number of threads
12
 
8
Base frequency
2.4 GHz
 
3.2 GHz
Maximum frequency
2.67 GHz
 
3.6 GHz
L1 cache
64 KB (per core)
 
64 KB (per core)
L2 cache
256 KB (per core)
 
256 KB (per core)
L3 cache
12 MB (shared)
 
12 MB (shared)
Manufacturing process technology
32 nm
 
32 nm
Die size
239 mm2
 
239 mm2
Maximum core temperature
76 °C
 
83 °C
Transistor count
1,170 million
 
1,170 million
64 bit support
+
 
+
VID voltage range
0.75V-1.35V
 
0.75V-1.35V

Compatibility

Information on Xeon E5645 and Xeon X5672 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
 
2
Socket
FCLGA1366
 
FCLGA1366
Power consumption (TDP)
80 Watt
 
95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5645 and Xeon X5672. You'll probably need this information if you require some particular technology.
Instruction set extensions
Intel® SSE4.2
 
Intel® SSE4.2
AES-NI
+
 
+
Enhanced SpeedStep (EIST)
+
 
+
Turbo Boost
1.0
 
1.0
Hyper-Threading
+
 
+
Idle States
+
 
+
Demand Based Switching
+
 
+
PAE
40 Bit
 
40 Bit

Security technologies

Xeon E5645 and Xeon X5672 technologies aimed at raising security, for example, by protecting against hacks.
TXT
+
 
+
EDB
+
 
+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5645 and Xeon X5672 are enumerated here.
VT-d
+
 
+
VT-x
+
 
+
EPT
+
 
+

Memory specs

Types, maximum amount and channel number of RAM supported by Xeon E5645 and Xeon X5672.
Supported memory types
DDR3-800, DDR3-1066, DDR3-1333
 
DDR3-800, DDR3-1066, DDR3-1333
Maximum memory size
288 GB
 
288 GB
Max memory channels
3
 
3
Maximum memory bandwidth
32 GB/s
 
32 GB/s
ECC memory support
+
 
+

Benchmark performance

Non-gaming benchmarks performance of Xeon E5645 and Xeon X5672. Overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance

Xeon E5645 6.34
Xeon X5672 6.37 +0.5%

Passmark

Xeon E5645 5154
Xeon X5672 5179 +0.5%

Mining hashrates

Cryptocurrency mining performance of Xeon E5645 and Xeon X5672. Usually measured in megahashes per second.
Bitcoin / BTC (SHA256)
28 Mh/s
 
no data

Gaming performance

Let's see how good Xeon E5645 and Xeon X5672 are for gaming compared with game system requirements. Remember that sometimes official requirements may reflect real performance inaccurately.

Advantages of Intel Xeon E5645

Less power hungry (80 vs 95 watts)

Advantages of Intel Xeon X5672

0.5% faster in synthetic tests
Somewhat newer (14 February 2011 vs 16 March 2010)
Cheaper ($115 vs $294)

So, Xeon E5645 or X5672?

Technical City couldn't decide between Intel Xeon E5645 and Intel Xeon X5672. The differences in performance seem too small.
Should you still have questions on choice between Xeon E5645 and Xeon X5672, ask them in Comments section, and we shall answer.

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