Xeon E3-1225

Details and Benchmarks for Intel Xeon E3-1225

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 E3-1225 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,544 Rank: 1241
Rank Name Score Visual
1237 Xeon X5570 4,547
+0.1%
1238 Core i3-3220T 4,547
+0.1%
1239 Core i7-2620M 4,545
+0%
1240 Xeon W3530 4,545
+0%
1241 Xeon E3-1225 4,544
1242 Athlon 200GE 4,543
+-0%
1243 Core i3-2120 4,541
-0.1%
1244 Core i3-5157U 4,541
-0.1%
1245 FX-9830P 4,540
-0.1%
1246 Core i5-3427U 4,540
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Xeon E3-1225 based on multi-threaded benchmark results.

4,526 Rank: 1184
Rank Name Score Visual
1180 Intel Core i3-7100U 4,528
+0%
1181 A8-7650K 4,527
+0%
1182 Core i7-5650U 4,526
+0%
1183 Core i5-5257U 4,526
+0%
1184 Xeon E3-1225 4,526
1185 Core i5-5287U 4,525
+-0%
1186 Celeron 807UE 4,524
+-0%
1187 Atom C3558 4,524
+-0%
1188 A10-6790K 4,524
+-0%
1189 Core m7-6Y75 4,523
-0.1%

View full ranking →

Singlecore Score

Single-core performance score for Xeon E3-1225 based on single-threaded benchmark results.

4,556 Rank: 1246
Rank Name Score Visual
1242 Core i3-4000M 4,558
+0%
1243 Celeron G1630 4,558
+0%
1244 Xeon X5650 4,556
+0%
1245 Pentium G860 4,556
+0%
1246 Xeon E3-1225 4,556
1247 Pentium G3250T 4,555
+-0%
1248 Xeon E5-2650L v4 4,553
-0.1%
1249 Core i7-990X 4,553
-0.1%
1250 Core i5-2500 4,550
-0.1%
1251 A8-9600 4,550
-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 E3-1225 based on integer math, floating point math, and prime number computation benchmarks.

4,594 Rank: 976
Rank Name Score Visual
972 Core i3-7350K 4,596
+0%
973 Athlon X4 880K 4,595
+0%
974 Xeon X5470 4,595
+0%
975 Core i3-7320 4,594
+0%
976 Xeon E3-1225 4,594
977 Xeon X3450 4,593
+-0%
978 A10-7890K 4,593
+-0%
979 Xeon W3520 4,593
+-0%
980 Core i5-3335S 4,593
+-0%
981 Xeon E5630 4,593
+-0%

View full ranking →

Data Processing

Aggregated score for Xeon E3-1225 based on data encryption, data compression, and string sorting benchmarks.

4,573 Rank: 985
Rank Name Score Visual
981 Core i5-7400T 4,574
+0%
982 Xeon X5550 4,574
+0%
983 Ryzen Embedded R1505G 4,573
+0%
984 Core i5-6300HQ 4,573
+0%
985 Xeon E3-1225 4,573
986 Core i7-940 4,573
+0%
987 Core i3-9100TE 4,573
+0%
988 Core i3-7300 4,572
+-0%
989 Xeon E5640 4,572
+-0%
990 Xeon E5630 4,572
+-0%

View full ranking →

Physics & Compute

Aggregated score for Xeon E3-1225 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,596 Rank: 974
Rank Name Score Visual
970 Core i7-2760QM 4,597
+0%
971 Core i5-6267U 4,596
+0%
972 Ryzen 3 2300U 4,596
+0%
973 Xeon E3-1260L 4,596
+0%
974 Xeon E3-1225 4,596
975 Core i7-6560U 4,595
+-0%
976 Core i3-7101TE 4,595
+-0%
977 Atom C3758 4,595
+-0%
978 Core i3-4370 4,595
+-0%
979 Core i7-965 4,595
+-0%

View full ranking →

Xeon E3-1225 Details

For users requiring a reliable, server-grade processor with integrated graphics and ECC memory support, the Intel Xeon E3-1225 offers a compelling solution from the early 2010s. Built on the Sandy Bridge microarchitecture at a 32 nm process, this CPU was launched in April 2011 and remains relevant for legacy systems and embedded applications where stability and compatibility are prioritized over raw performance. With a 95 W TDP and Socket 1155 packaging, it demands adequate cooling but delivers a balanced performance profile for its era.

The Xeon E3-1225 features four cores and four threads, operating at a base frequency of 3.1 GHz and capable of boosting up to 3.4 GHz under load. It includes 6 MB of L3 cache, 61 KiB of L1 cache, and 244 KiB of L2 cache, supporting dual-channel DDR3 memory. While its single-core performance is modest by modern standards, its integrated Intel HD P3000 graphics provide basic display output and enable light multimedia tasks without requiring a discrete GPU.

In terms of supported features, the processor includes full AVX and AVX2 instruction sets, AES encryption acceleration, and virtualization technologies such as VT-x and VT-d, making it suitable for virtualized environments. ECC memory support enhances data integrity, a critical advantage for server and workstation use. However, the lack of simultaneous multithreading and a locked multiplier limits its overclocking potential and multi-threaded scalability.

Benchmark results place the Xeon E3-1225 at an Overall Score of 4544, ranking #1241 of 2060, with a Singlecore Score of 4556 (#1244) and a Multicore Score of 4526 (#1182). These scores indicate that while it remains competitive with many mid-range processors from the same period, it falls significantly behind modern CPUs. Its strongest performance category is single-core, where it outperforms some lower-end modern chips, but its multicore performance is less impressive due to limited core count and no SMT.

As of March 2026, the Xeon E3-1225 is best suited for legacy server environments, small-scale virtualization, or embedded systems where its combination of ECC support, integrated graphics, and reliability outweighs its outdated architecture. It is not recommended for high-performance computing, gaming, or modern workloads that demand current-generation CPU capabilities. For users maintaining older infrastructure or requiring cost-effective, low-power server solutions, the Xeon E3-1225 remains a viable option from a bygone era of computing.
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Intel Xeon E3-1225

Main Specifications

Designer: Intel
Name: Xeon E3-1225
Cores: 4
Threads: 4
Base Frequency: 3100 MHz
Clock Multiplier: 31x (locked)
Core Name: Sandy Bridge
Socket: Socket 1155
Package: FC-LGA10
Target Segment: Server
TDP: 95 W

Cache Specifications

L1 Cache: 62.464 KiB
L2 Cache: 0.244 MiB
L3 Cache: 5.722 MiB

Memory Specifications

Supported Memory Type: DDR3

Physical Specifications

Process: 32 nm
Die Area: 216 mm²
Manufacturer: Intel

CPU Features

MMX EMMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 ABM BMI1 BMI2 FMA3 AES RdRand ADX CLMUL F16C x86-16 x86-32 x86-64 Real Protected SMM FPU NX EIST TXT VT-x VT-d SSE4a SHA AMD-Vi AMD-V SenseMI
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