Xeon W3503

Details and Benchmarks for Intel Xeon W3503

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Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Xeon W3503 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,181 Rank: 1705
Rank Name Score Visual
1701 Pentium E5400 4,185
+0.1%
1702 A8-5550M 4,183
+0%
1703 Core 2 Duo P8600 4,183
+0%
1704 Core i5-430M 4,182
+0%
1705 Xeon W3503 4,181
1706 Core M-5Y10a 4,180
+-0%
1707 A6-5350M 4,179
+-0%
1708 Core i3-370M 4,177
-0.1%
1709 A8-5557M 4,176
-0.1%
1710 A8-3550MX 4,176
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Xeon W3503 based on multi-threaded benchmark results.

4,132 Rank: 2039
Rank Name Score Visual
2035 A4-6320 4,143
+0.3%
2036 Core i3-3217U 4,143
+0.3%
2037 Phenom 9750 4,141
+0.2%
2038 Core i5-3317U 4,135
+0.1%
2039 Xeon W3503 4,132
2040 A4-5300 4,131
+-0%
2041 Core i3 530 4,127
-0.1%
2042 Athlon II X2 245 4,121
-0.3%
2043 Phenom 9650 4,119
-0.3%
2044 Core 2 Quad Q8300 4,112
-0.5%

View full ranking →

Singlecore Score

Single-core performance score for Xeon W3503 based on single-threaded benchmark results.

4,213 Rank: 1563
Rank Name Score Visual
1559 Core i3-530 4,215
+0%
1560 Core i3-2330M 4,214
+0%
1561 Core 2 Duo T9600 4,214
+0%
1562 Core i3-2328M 4,213
+0%
1563 Xeon W3503 4,213
1564 Core i3-2348M 4,212
+-0%
1565 Athlon II X3 445 4,212
+-0%
1566 Core 2 Duo E6750 4,211
+-0%
1567 Phenom II X2 545 4,210
-0.1%
1568 Celeron J4025 4,210
-0.1%

View full ranking →

Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Xeon W3503 based on integer math, floating point math, and prime number computation benchmarks.

4,501 Rank: 1525
Rank Name Score Visual
1521 A6-5357M 4,502
+0%
1522 Celeron 3955U 4,501
+0%
1523 Core i7-2610UE 4,501
+0%
1524 Athlon II X3 435 4,501
+0%
1525 Xeon W3503 4,501
1526 A4-5300B 4,501
+0%
1527 Celeron 4305U 4,501
+0%
1528 A4-4020 4,501
+0%
1529 Core i3-2312M 4,500
+-0%
1530 Pentium G6950 4,500
+-0%

View full ranking →

Data Processing

Aggregated score for Xeon W3503 based on data encryption, data compression, and string sorting benchmarks.

4,457 Rank: 1614
Rank Name Score Visual
1610 Atom x5-Z8350 4,458
+0%
1611 A6-5350M 4,458
+0%
1612 E2-3200 4,458
+0%
1613 Celeron N3350 4,457
+0%
1614 Xeon W3503 4,457
1615 Pentium 3805U 4,457
+0%
1616 A6-9220 4,457
+0%
1617 A4-3300 4,457
+0%
1618 Pentium E5300 4,457
+0%
1619 Celeron E3400 4,457
+0%

View full ranking →

Physics & Compute

Aggregated score for Xeon W3503 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,486 Rank: 1501
Rank Name Score Visual
1497 Core i5-450M 4,487
+0%
1498 Pentium 4405Y 4,486
+0%
1499 Celeron N3450 4,486
+0%
1500 Athlon II X3 440 4,486
+0%
1501 Xeon W3503 4,486
1502 A6-3500 4,486
+0%
1503 Core i3-2375M 4,485
+-0%
1504 Phenom II X2 565 4,485
+-0%
1505 Pentium 4410Y 4,485
+-0%
1506 Pentium G640T 4,485
+-0%

View full ranking →

Xeon W3503 Details

As of March 2026, the Intel Xeon W3503 remains a relic from the late 2000s, a server-class processor that was launched in March 2009 as part of Intel’s Bloomfield architecture. Despite its age, the processor still holds a place in historical performance evaluations, though it now sits near the bottom of modern benchmark rankings. Built on a 45 nm process and featuring 731 million transistors, the Xeon W3503 was designed for high-reliability workstations and servers requiring ECC memory support—a key feature for data integrity in mission-critical environments.

The processor features four cores and eight threads, thanks to Intel’s Hyper-Threading technology, which allows it to handle multiple threads simultaneously. Operating at a base clock of 2.4 GHz with a turbo frequency of 2.8 GHz, the Xeon W3503 was a notable performer for its time, particularly in multi-threaded workloads. It operates on a 2.5 GT/s bus speed and supports DDR3 memory via a triple-channel interface, with a maximum capacity of 8 GB and a memory bandwidth of 21 GB/s. The L3 cache measures 3.815 MiB, while L2 and L1 caches are 0.244 MiB and 0.061 MiB, respectively. The TDP of 45 W is modest by today’s standards, though the processor lacks integrated graphics, requiring a discrete GPU for display output.

In benchmark testing, the Xeon W3503 achieves an overall score of 4181, placing it #1705 of 2060 in the overall ranking. Its single-core performance scores 4213, ranking #1562, while its multicore performance reaches 4132, ranking #2039. These scores indicate that while the processor performs better in single-threaded tasks, its multi-core capabilities are significantly weaker compared to modern CPUs. It trails behind many contemporary mobile and desktop processors, including Intel’s Core i3-3217U and AMD’s A4-6320, both of which achieve higher scores despite being from later generations.

The Xeon W3503 supports a range of advanced features, including AES-NI, SSE4.1/4.2, VT-x, VT-d, and Intel’s vPro technology, making it suitable for virtualization and enterprise environments. However, its locked multiplier limits overclocking potential, a common trait in Intel’s server-grade lineup. While the processor is no longer relevant for modern computing demands, it remains a testament to Intel’s engineering during the early days of multi-core computing. For users seeking a low-power, ECC-capable server CPU, the Xeon W3503 may still serve niche applications—though its performance is now dwarfed by even mid-tier modern processors.
Frequently Compared

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Intel Xeon W3503

Main Specifications

Designer: Intel
Name: Xeon W3503
Model Number: i7-720QM
Cores: 4
Threads: 8
Base Frequency: 1600 MHz
Clock Multiplier: 18x (locked)
Core Name: Bloomfield
Socket: PGA988
Package: FC-LGA8
Target Segment: Server
Max CPUs: 1
TDP: 45 W

Cache Specifications

L1 Cache: 62.464 KiB
L2 Cache: 0.244 MiB
L3 Cache: 3.815 MiB

Memory Specifications

Supported Memory Type: DDR3 1066/1333
Memory Channels: 2
Maximum Memory: 0 GB
Maximum Bandwidth: 21 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 2
PCIe Lanes: 16
PCIe Configuration: 1x16, 2x8

Integrated Graphics

GPU: HD Graphics
GPU Designer: Intel
GPU Max Frequency: 667 MHz

Physical Specifications

Process: 45 nm
Die Area: 263 mm²
Transistor Count: 0.00 billion
Manufacturer: Intel
Word Size: 64-bit

CPU Features

MMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AES x86-64 HT EIST TXT vPro VT-x VT-d EPT Secure Key SMEP SIPP IPT TSX Flex Memory FMA
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