Intel Xeon E5503 vs Intel Xeon E5630

Comparative analysis of Intel Xeon E5503 and Intel Xeon E5630 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

Intel Xeon E5503

Intel Xeon E5630

Differences

Reasons to consider the Intel Xeon E5630

2 more cores, run more applications at once: 4 vs 2
6 more threads: 8 vs 2
Around 40% higher clock speed: 2.80 GHz vs 2 GHz
Around 2% higher maximum core temperature: 77.6°C vs 76°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
2x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later
3x more L3 cache, more data can be stored in the L3 cache for quick access later
2x more maximum memory size: 288 GB vs 144 GB
Around 50% better performance in PassMark - Single thread mark: 1173 vs 783
3.8x better performance in PassMark - CPU mark: 6835 vs 1787

Specifications (specs)
Number of cores	4 vs 2
Number of threads	8 vs 2
Maximum frequency	2.80 GHz vs 2 GHz
Maximum core temperature	77.6°C vs 76°C
Manufacturing process technology	32 nm vs 45 nm
L1 cache	64 KB (per core) vs 64 KB (per core)
L2 cache	256 KB (per core) vs 256 KB (per core)
L3 cache	12288 KB (shared) vs 4096 KB (shared)
Maximum memory size	288 GB vs 144 GB
Benchmarks
PassMark - Single thread mark	1173 vs 783
PassMark - CPU mark	6835 vs 1787

Compare benchmarks

CPU 1: Intel Xeon E5503
CPU 2: Intel Xeon E5630

PassMark - Single thread mark

CPU 1

CPU 2

783

1173

PassMark - CPU mark

CPU 1

CPU 2

1787

6835

Name	Intel Xeon E5503	Intel Xeon E5630
PassMark - Single thread mark	783	1173
PassMark - CPU mark	1787	6835
Geekbench 4 - Single Core		479
Geekbench 4 - Multi-Core		2263
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		1.787
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		63.534
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.496
CompuBench 1.5 Desktop - Video Composition (Frames/s)		2.692
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		7.83

Compare specifications (specs)

	Intel Xeon E5503	Intel Xeon E5630
Essentials
Architecture codename	Nehalem EP	Westmere EP
Launch date	March 2010	March 2010
Launch price (MSRP)	$287	$73
Place in performance rating	2554	2596
Price now	$287.01	$47.03
Processor Number	E5503	E5630
Series	Legacy Intel® Xeon® Processors	Legacy Intel® Xeon® Processors
Status	Launched	Discontinued
Value for money (0-100)	1.43	31.87
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.00 GHz	2.53 GHz
Bus Speed	4.8 GT/s QPI	5.86 GT/s QPI
Die size	263 mm	239 mm
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	4096 KB (shared)	12288 KB (shared)
Manufacturing process technology	45 nm	32 nm
Maximum core temperature	76°C	77.6°C
Maximum frequency	2 GHz	2.80 GHz
Number of cores	2	4
Number of QPI Links	2	2
Number of threads	2	8
Transistor count	731 million	1170 million
VID voltage range	0.75V -1.35V	0.750V-1.350V
Memory
ECC memory support
Max memory channels	3	3
Maximum memory bandwidth	19.2 GB/s	25.6 GB/s
Maximum memory size	144 GB	288 GB
Supported memory types	DDR3 800	DDR3 800/1066
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	2
Package Size	42.5mm x 45mm	42.5mm X 45mm
Sockets supported	FCLGA1366	FCLGA1366
Thermal Design Power (TDP)	80 Watt	80 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	40-bit	40-bit
Thermal Monitoring
Instruction set extensions		Intel® SSE4.2
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)