Xeon W3520

Details and Benchmarks for Intel Xeon W3520

Sysbuilds Alpha Stage!

Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

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 W3520 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,508 Rank: 1280
Rank Name Score Visual
1276 Celeron G3900T 4,512
+0.1%
1277 A10-6700 4,511
+0.1%
1278 FX-6200 4,509
+0%
1279 FX-6350 4,508
+0%
1280 Xeon W3520 4,508
1281 Xeon X3430 4,508
+0%
1282 Core i7-2630QM 4,506
+-0%
1283 Phenom II X6 1090T 4,506
+-0%
1284 Phenom II X4 B50 4,505
-0.1%
1285 PRO A6-9500 4,505
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Xeon W3520 based on multi-threaded benchmark results.

4,549 Rank: 1159
Rank Name Score Visual
1155 Core i5-2560M 4,551
+0%
1156 Core i5-4300M 4,550
+0%
1157 Core i7-4550U 4,550
+0%
1158 Xeon L5638 4,550
+0%
1159 Xeon W3520 4,549
1160 Core i7-6498DU 4,548
+-0%
1161 Intel Core i7-740QM 4,548
+-0%
1162 Core i7-4610M 4,548
+-0%
1163 Core i5-7Y57 4,547
+-0%
1164 Core i5-2405S 4,547
+-0%

View full ranking →

Singlecore Score

Single-core performance score for Xeon W3520 based on single-threaded benchmark results.

4,481 Rank: 1303
Rank Name Score Visual
1299 A9-9430 4,493
+0.3%
1300 Core i5-670 4,486
+0.1%
1301 Phenom II X4 970 4,484
+0.1%
1302 Core i7-2640M 4,483
+0%
1303 Xeon W3520 4,481
1304 Xeon E5-2608L v4 4,480
+-0%
1305 Celeron 3965U 4,480
+-0%
1306 Phenom II X4 975 4,479
+-0%
1307 Pentium J6426 4,479
+-0%
1308 Pentium G870 4,478
-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 W3520 based on integer math, floating point math, and prime number computation benchmarks.

4,593 Rank: 979
Rank Name Score Visual
975 Core i3-7320 4,594
+0%
976 Xeon E3-1225 4,594
+0%
977 Xeon X3450 4,593
+0%
978 A10-7890K 4,593
+0%
979 Xeon W3520 4,593
980 Core i5-3335S 4,593
+0%
981 Xeon E5630 4,593
+0%
982 FX-4320 4,593
+0%
983 Core i5-2400 4,592
+-0%
984 Core i7-920 4,592
+-0%

View full ranking →

Data Processing

Aggregated score for Xeon W3520 based on data encryption, data compression, and string sorting benchmarks.

4,566 Rank: 1010
Rank Name Score Visual
1006 Xeon E5620 4,567
+0%
1007 Core i7-2635QM 4,566
+0%
1008 Core i3-6300 4,566
+0%
1009 Ryzen 3 2200U 4,566
+0%
1010 Xeon W3520 4,566
1011 Pentium Gold G5600 4,565
+-0%
1012 Pentium Gold G5500 4,565
+-0%
1013 Core i5-2320 4,565
+-0%
1014 Xeon X3450 4,564
+-0%
1015 Pentium G4620 4,563
-0.1%

View full ranking →

Physics & Compute

Aggregated score for Xeon W3520 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,572 Rank: 1047
Rank Name Score Visual
1043 Core i7-2635QM 4,573
+0%
1044 Core i5-2400S 4,573
+0%
1045 Xeon E5-2609 v2 4,573
+0%
1046 Core i3-4130 4,572
+0%
1047 Xeon W3520 4,572
1048 Core i7-6500U 4,571
+-0%
1049 Core i7-6498DU 4,571
+-0%
1050 Core i5-7200U 4,571
+-0%
1051 Xeon E5530 4,571
+-0%
1052 Xeon X3450 4,570
+-0%

View full ranking →

Xeon W3520 Details

Built on Intel's Bloomfield microarchitecture and manufactured on a 45 nm process, the Xeon W3520 is a server-grade processor that was launched in March 2009. At over 14 years old, it represents an earlier generation of high-performance computing hardware, designed for workstations and enterprise environments where reliability and ECC memory support are critical. The chip features four cores and eight threads thanks to Intel's Hyper-Threading technology, making it capable of handling multiple workloads simultaneously, though its performance today is far behind modern processors. With a base clock of 2.66 GHz and a turbo frequency of 2.93 GHz, it operates at a substantial 130 W TDP, requiring robust cooling solutions due to its power consumption and heat output.

It uses the FCLGA1366 socket and supports DDR3 800/1066 memory across a triple-channel interface, with a maximum memory capacity of 24 GB and a bandwidth of 25.6 GB/s. The processor includes 8 MB of L3 cache, 0.244 MiB of L2 cache, and 0.061 MiB of L1 cache, which helps reduce latency in data-intensive tasks. It also supports advanced features such as AES-NI, AVX2, VT-x, and EPT, enabling efficient virtualization and encryption workloads. However, it lacks integrated graphics, requiring a discrete GPU for display output.

In benchmark testing, the Xeon W3520 achieves a single-core score of 4481, ranking #1303 out of 2060, and a multicore score of 4549, placing it #1159 of 2060. Its overall score of 4508 positions it at #1279 in the overall ranking. While it performs comparably to some mid-range processors from the same era, such as the Core i7-2640M and Phenom II X4 970, it falls significantly behind modern CPUs like the Ryzen Threadripper PRO 9995WX or Core Ultra 9 285K. As of March 2026, the Xeon W3520 is best suited for legacy systems or niche applications where its ECC memory and stability are beneficial, rather than for new builds or performance-intensive tasks.
Frequently Compared

AMD EPYC 7542 32 views

Intel Celeron G4930T 21 views

Intel Xeon Silver 4116 20 views

AMD Ryzen 5 PRO 3500U 19 views

Intel Core i7-7700HQ 19 views

Intel Xeon Silver 4208 19 views

Intel Xeon Silver 4116T 18 views

AMD Ryzen 3 PRO 2200GE 17 views

AMD Ryzen 9 PRO 3900 16 views

AMD Ryzen Threadripper 1920X 16 views

Intel Xeon W3520

Main Specifications

Designer: Intel
Name: Xeon W3520
Model Number: W3520
Cores: 4
Threads: 8
Base Frequency: 2660 MHz
Clock Multiplier: 20x (locked)
Core Name: Bloomfield
Socket: FCLGA1366
Package: FC-LGA8
Target Segment: Server
Max CPUs: 1
TDP: 130 W

Cache Specifications

L1 Cache: 62.464 KiB
L2 Cache: 0.244 MiB
L3 Cache: 7.629 MiB

Memory Specifications

Supported Memory Type: DDR3 800/1066
Memory Channels: 3
Maximum Memory: 0 GB
Maximum Bandwidth: 25.6 GB/s
ECC Support: Yes

PCI-Express Specifications

PCIe Revision: 2.0
PCIe Lanes: 12
PCIe Configuration: 4x1, 2x4

Integrated Graphics

GPU: Iris™ Graphics 5100
GPU Designer: Intel
GPU Max Frequency: 1200 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 AVX2 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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