Xeon W3565

Details and Benchmarks for Intel Xeon W3565

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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 W3565 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,633 Rank: 1163
Rank Name Score Visual
1159 Pentium G3260 4,638
+0.1%
1160 Core i5-3340M 4,638
+0.1%
1161 Core m5-6Y57 4,635
+0%
1162 Xeon X5650 4,633
+0%
1163 Xeon W3565 4,633
1164 Core i7-970 4,632
+-0%
1165 Xeon L5639 4,631
+-0%
1166 A10-9700E 4,631
+-0%
1167 Core i5-4350U 4,631
+-0%
1168 Athlon X4 880K 4,628
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Xeon W3565 based on multi-threaded benchmark results.

4,627 Rank: 1054
Rank Name Score Visual
1050 Core i5-2400 4,632
+0.1%
1051 Xeon E5-2430 v2 4,630
+0.1%
1052 Core i5-7360U 4,628
+0%
1053 Core i7-2715QE 4,627
+0%
1054 Xeon W3565 4,627
1055 Core i7-2675QM 4,626
+-0%
1056 Pentium Gold G5500T 4,625
+-0%
1057 Core i5-2500K 4,625
+-0%
1058 Turion II Neo N40L 4,625
+-0%
1059 Xeon E3-1230 4,623
-0.1%

View full ranking →

Singlecore Score

Single-core performance score for Xeon W3565 based on single-threaded benchmark results.

4,637 Rank: 1188
Rank Name Score Visual
1184 Core M-5Y70 4,640
+0.1%
1185 Athlon Silver 3050U 4,640
+0.1%
1186 Core M 5Y10 4,638
+0%
1187 Core i7-2720QM 4,638
+0%
1188 Xeon W3565 4,637
1189 Xeon E3-1245 4,637
+0%
1190 Core M-5Y71 4,635
+-0%
1191 Pentium Silver N6005 4,633
-0.1%
1192 Core i3-6100U 4,630
-0.2%
1193 Core i7 930 4,630
-0.2%

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Workload Scores

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

Number Crunching

Aggregated score for Xeon W3565 based on integer math, floating point math, and prime number computation benchmarks.

4,615 Rank: 931
Rank Name Score Visual
927 Core i7-3632QM 4,618
+0.1%
928 Xeon E3-1235 4,618
+0.1%
929 Core i5-6500TE 4,617
+0%
930 Core i5-3330 4,615
+0%
931 Xeon W3565 4,615
932 Core i7-880 4,615
+0%
933 Core i7-960 4,615
+0%
934 Core i3-1115G4E 4,615
+0%
935 Core i5-2450P 4,614
+-0%
936 Core i7-2960XM 4,614
+-0%

View full ranking →

Data Processing

Aggregated score for Xeon W3565 based on data encryption, data compression, and string sorting benchmarks.

4,597 Rank: 909
Rank Name Score Visual
905 Phenom II X6 1075T 4,598
+0%
906 Phenom II X6 1065T 4,598
+0%
907 Xeon E3-1505L v5 4,597
+0%
908 Ryzen 3 PRO 1200 4,597
+0%
909 Xeon W3565 4,597
910 Core i5-3550 4,596
+-0%
911 Core i5-4570S 4,596
+-0%
912 Xeon D-1527 4,595
+-0%
913 Core i5-6440EQ 4,594
-0.1%
914 Core i5-6400 4,594
-0.1%

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Physics & Compute

Aggregated score for Xeon W3565 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,582 Rank: 1012
Rank Name Score Visual
1008 Core i7-2710QE 4,583
+0%
1009 Core i7-2670QM 4,583
+0%
1010 Core i3-8145U 4,582
+0%
1011 Xeon W3570 4,582
+0%
1012 Xeon W3565 4,582
1013 Core i5-2300 4,582
+0%
1014 Xeon E5640 4,582
+0%
1015 Core i7-930 4,582
+0%
1016 Core i7-880 4,582
+0%
1017 Core i3-6100T 4,581
+-0%

View full ranking →

Xeon W3565 Details

Ranked #1162 of 2060 in overall performance, the Intel Xeon W3565 delivers a measured overall score of 4633, with a single-core score of 4637 and a multicore score of 4627. These results place it firmly in the mid-tier of its generation, offering solid but unremarkable performance when compared to modern processors. As of March 2026, the Xeon W3565 is a processor from 2009—over 16 years old—making it obsolete by current standards. Despite its age, it remains notable for its role in early 64-bit server and workstation environments, particularly where ECC memory and virtualization support were essential.

The Xeon W3565 is based on Intel's Bloomfield microarchitecture, built on a 45 nm process, and features four cores with Hyper-Threading enabled, effectively doubling the thread count to eight. This allows it to handle multiple workloads efficiently, though its 3.2 GHz base clock and 3.466 GHz turbo frequency are modest by today’s standards. It includes 7.629 MiB of L3 cache, 0.244 MiB of L2 cache, and 0.061 MiB of L1 cache, with a triple-channel DDR3 memory interface supporting up to 24 GB of ECC-capable memory at speeds of 800–1066 MHz. The processor operates at a 130 W TDP and requires the FCLGA1366 socket, indicating its use in older server and workstation motherboards.

One of the Xeon W3565’s most significant features is its support for Intel’s virtualization technologies, including VT-x, VT-d, and EPT, making it suitable for virtual machine deployment. It also supports advanced instructions such as SSE4.1, SSE4.2, AVX2, and AES-NI, enabling efficient data processing and encryption tasks. However, it lacks integrated graphics, relying on a discrete GPU for display output, which limits its use in systems where visual processing is required without a dedicated card.

Despite its strong single-core performance, which ranks it #1188 overall, the Xeon W3565's multicore performance is slightly weaker, placing it at #1053. This suggests that while it excels in applications dependent on high clock speeds and low-latency operations, it struggles in heavily threaded environments. Compared to modern processors, it trails far behind, even falling behind several low-end mobile CPUs from the 2010s in both single- and multicore performance.

In summary, the Xeon W3565 is best suited for legacy server or workstation environments where ECC memory, virtualization, and backward compatibility are prioritized over raw performance. Its age and power consumption make it impractical for modern desktop or compute workloads, but it remains a relic of the early 64-bit era of Intel’s server processor lineup.
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Intel Xeon W3565

Main Specifications

Designer: Intel
Name: Xeon W3565
Model Number: W3565
Cores: 4
Threads: 8
Base Frequency: 3200 MHz
Clock Multiplier: 24x (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: 16
PCIe Configuration: Up to 1x16, 2x8, 1x8+2x4

Integrated Graphics

GPU: HD Graphics 2000
GPU Designer: Intel
GPU Max Frequency: 1350 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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