Feex·CPU
Intel · Xeon W · Server

Intel® Xeon™ W3670

The Intel Xeon W3670 is a server processor released in 2011, built on the Westmere architecture. It has 6 cores and 12 threads, a base clock of 3.20 GHz, a maximum boost of 3.50 GHz, 12 MB of L3 cache, a 130 W TDP and the FCLGA1366 socket.

Cores
6
Threads
12
Boost Clock
3.5 GHz
Base Clock
3.2 GHz
Architecture
Westmere
Socket
FCLGA1366
TDP
130 W
L3 Cache
12 MB
Core layout
PPPPPP
6 Performance 12 Threads
Notable capabilities:AVX-512Extended Page Tables (EPT)

Best for

Server / professional infrastructure

Overview

The Intel Xeon W3670 is a server processor with 6 cores and 12 threads, built on the Westmere architecture. It launched in 2011. Clocks run from 3.2 GHz base to 3.5 GHz boost. A 12-MB L3 cache backs the cores (2.3 MB per core). It supports DDR3 memory. It uses the FCLGA1366 socket. Rated TDP is 130 W. Notable platform capabilities: AVX-512, Extended Page Tables (EPT).

Performance

Overall CPU Performance computed
3,080
12% of reference
Reference ceiling 25,000
Multi-Core Performance PassMark rating
6,395
5% of reference
Reference ceiling 120,000
Single-Core Performance PassMark rating
1,483
27% of reference
Reference ceiling 5,500
Productivity Performance computed
6,233
4% of reference
Reference ceiling 160,000
Creator Performance computed
6,187
4% of reference
Reference ceiling 140,000
Engineering Performance computed
6,355
3% of reference
Reference ceiling 200,000
Gaming Performance computed
6,048
27% of reference
Reference ceiling 22,000
Performance per Core computed
1,066
5% of reference
Reference ceiling 21,053
Performance per Thread computed
533
5% of reference
Reference ceiling 10,527
Performance per Watt computed
49
2% of reference
Reference ceiling 2,000
Efficiency Index computed
270
7% of reference
Reference ceiling 4,000
Performance index computed
38
Intel Core i5-12400 = 100

The Intel Xeon W3670 scores 1,483 in single-core performance and 6,395 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 3,080 for overall performance, 6,233 for productivity performance, 6,187 for creator performance, 6,355 for engineering performance and 6,048 for gaming performance. Its multi-core throughput works out to 1,066 per core, 533 per thread and 49 per watt. Its computed efficiency index is 270. Its performance index is 38, so its overall performance is 62% below the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

How these scores are computed

Single-core and multi-core performance are PassMark CPU Mark single-thread and multi-thread ratings. Every other figure on this page's performance section is computed by Feex from those two ratings plus core count, thread count and TDP, so it is a derived value and not a separate benchmark run.

  • Overall performance is the geometric mean of the two ratings: the square root of single-core times multi-core.
  • Productivity performance is 0.65 times multi-core plus 1.4 times single-core.
  • Creator performance is 0.55 times multi-core plus 1.8 times single-core.
  • Engineering performance is multi-core times the smaller of 1.4 and (0.9 plus cores divided by 64).
  • Gaming performance is 3 times single-core plus 0.25 times multi-core.
  • Performance per core, per thread and per watt divide the multi-core rating by physical cores, logical threads and TDP in watts.
  • The efficiency index is the square root of single-core times multi-core, divided by the square root of TDP.
  • The performance index is overall performance divided by the overall performance of the Intel Core i5-12400 (8,069), times 100.

Workload Benchmarks

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

Integer Math Throughput
27,639
4% of reference
Reference ceiling 617,811
53% below the Intel Core i5-12400 (58,893)
Raw integer arithmetic throughput across cores.
Floating-Point Math
11,669
2% of reference
Reference ceiling 600,000
75% below the Intel Core i5-12400 (45,899)
Heavy floating-point math, mixed precision.
Compression Performance
113,734
5% of reference
Reference ceiling 2,309,868
50% below the Intel Core i5-12400 (228,054)
Throughput on lossless compression workloads.
Cryptography Performance
2,277
2% of reference
Reference ceiling 137,106
80% below the Intel Core i5-12400 (11,489)
Symmetric encryption and hashing throughput.
Physics Simulation
388
3% of reference
Reference ceiling 12,291
64% below the Intel Core i5-12400 (1,090)
Iterative physics & rigid-body simulation.
Vector / SIMD Throughput
3,285
2% of reference
Reference ceiling 172,975
79% below the Intel Core i5-12400 (15,509)
Wide-vector SIMD intrinsics performance.
Prime Sieve
26
2% of reference
Reference ceiling 1,067
61% below the Intel Core i5-12400 (67)
Searching for prime numbers (branch-heavy work).
Sort Performance
14,721
6% of reference
Reference ceiling 260,323
35% below the Intel Core i5-12400 (22,652)
Random string sorting throughput.

In the individual workload tests the Intel Xeon W3670 scores 27,639 in integer math, 11,669 in floating-point math, 113,734 in compression, 2,277 in cryptography, 388 in physics simulation, 3,285 in vector SIMD, 26 in the prime sieve and 14,721 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 53% below in integer math, 75% below in floating-point math, 50% below in compression, 80% below in cryptography, 64% below in physics simulation, 79% below in vector SIMD, 61% below in the prime sieve and 35% below in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

Core Configuration

Cores
6
Threads
12
Threads per Core
2
Base Clock
3.2 GHz
Boost Clock
3.5 GHz

The Intel Xeon W3670 has 6 physical cores and runs 12 logical threads. It runs 2 threads per core. It runs at a base clock of 3.20 GHz and boosts up to 3.50 GHz.

Architecture & Generation

Manufacturer
Intel
Family
Xeon W
Segment
Server
Generation
Not recorded
Architecture
Westmere
Process Node
Not recorded
Lithography
Not recorded
Release Date
2011
Release quarter
Q2 2011

The Intel Xeon W3670 is a server processor, belongs to the Intel Xeon W family and uses the Westmere architecture. It launched in 2011.

Cache

L1 Cache (Total)
384 KB
L2 Cache (Total)
1.5 MB
L2 Cache (per Core)
256 KB
L3 Cache
12 MB
Cache per Core
2.3 MB
Total Cache
13.9 MB

The Intel Xeon W3670 has 384 KB of L1 cache, 1.50 MB of L2 cache and 12 MB of L3 cache. That adds up to about 13.9 MB of cache, or 2.31 MB per core. Each core has 256 KB of private L2 cache.

Cache Hierarchy

L1L2L3
L1 384 KBL2 1.5 MBL3 12 MB

The Intel Xeon W3670 has a 3-level cache hierarchy: L1 at 384 KB, L2 at 1.5 MB and L3 at 12 MB. L3 is the largest level and makes up about 86% of the cache listed here.

Memory Support

Max Memory
Not recorded
Memory Types
DDR3
DDR5 Support
No
DDR4 Support
No
LPDDR Support
No
Max Memory Speed
1,066

The Intel Xeon W3670 supports DDR3 memory and runs memory at up to 1,066 MT/s. It does not support DDR5, DDR4 and LPDDR memory.

Graphics

Integrated Graphics
No

The Intel Xeon W3670 does not include integrated graphics, so a discrete graphics card is required for display output.

Platform & Compatibility

Socket
FCLGA1366
PCIe Generation
Not recorded

The Intel Xeon W3670 uses the FCLGA1366 socket.

Power & Thermals

TDP
130 W

The Intel Xeon W3670 has a rated TDP of 130 W.

Platform Capabilities

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

Instruction Sets

14 supported
Supported
AES-NIAVX-512AVX2AVXFMASHA64-bit (x86-64)SSE4.1SSE4.2SSESSE2SSE3SSSE3MMX
Not supported
AMX
Not recorded
AVX-VNNICETCET-IBTCET-SSFMA3Hyper-Threading

Security and Reliability

4 supported
Supported
Execute Disable (NX)Boot GuardSGXTrusted Execution
Not recorded
AES-NIControl-flow Enforcement (CET)Hardware RNGHardware ShieldOS GuardOS Guard (SMAP)

Virtualization

3 supported
Supported
Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)
Not recorded
VT-x with EPTIOMMUSecond-Level Address TranslationUnrestricted Guest

OS Compatibility

0 supported
Not supported
Windows 11 eligible

The Intel Xeon W3670 supports AES-NI, AVX-512, AVX2, AVX, FMA, SHA, 64-bit (x86-64), SSE4.1, SSE4.2, SSE, SSE2, SSE3, SSSE3 and MMX among its instruction set features. It does not support AMX. Feex has no record for AVX-VNNI, CET, CET-IBT, CET-SS, FMA3 and Hyper-Threading, which is different from being unsupported.

The Intel Xeon W3670 supports Execute Disable (NX), Boot Guard, SGX and Trusted Execution among its security features. Feex has no record for AES-NI, Control-flow Enforcement (CET), Hardware RNG, Hardware Shield, OS Guard and OS Guard (SMAP), which is different from being unsupported.

The Intel Xeon W3670 supports Extended Page Tables (EPT), VT-d (DMA Remapping) and VT-x (Hardware Virtualization) among its virtualization features. Feex has no record for VT-x with EPT, IOMMU, Second-Level Address Translation and Unrestricted Guest, which is different from being unsupported.

Feex records these as not true for the Intel Xeon W3670: Windows 11 eligible.

Physical & Manufacturing

Launch Price
$885

The Intel Xeon W3670 is manufactured by Intel. It launched at a price of $885.

Naming & Aliases

Display Name
Intel® Xeon™ W3670
Normalized Name
Intel® Xeon™ W3670
Product line brand
Xeon

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Xeon W3670 have reported compute telemetry yet, so real-world compute for this processor is not recorded.

How fleet compute is measured · Fleet compute leaderboard · JSON

Data Coverage

Feex has recorded 49% of the specifications it tracks for the Intel Xeon W3670. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L4 Cache. Memory Support: Memory Channels, Memory Bandwidth and ECC Memory. Platform & Compatibility: Package, Package Size and PCIe Lanes. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count and Foundry. Naming & Aliases: SKU, Model Number, Processor Number and Part Number.

Common questions

How many cores and threads does the Intel Xeon W3670 have?

The Intel Xeon W3670 has 6 cores and 12 threads.

What architecture does the Intel Xeon W3670 use?

The Intel Xeon W3670 is built on the Westmere architecture.

Does the Intel Xeon W3670 have integrated graphics?

No. The Intel Xeon W3670 does not include integrated graphics.

What socket does the Intel Xeon W3670 use?

The Intel Xeon W3670 uses the FCLGA1366 socket.

What memory does the Intel Xeon W3670 support?

The Intel Xeon W3670 supports DDR3.

How fast does the Intel Xeon W3670 run?

The Intel Xeon W3670 can boost up to 3.5 GHz, with a 3.2 GHz base clock.

What is the TDP of the Intel Xeon W3670?

The Intel Xeon W3670 has a TDP of 130 W.

How does the Intel Xeon W3670 perform?

In the Feex normalized performance dataset, the Intel Xeon W3670 scores 6,395 multi-core and 1,483 single-core.

What advanced capabilities does the Intel Xeon W3670 support?

Notable platform capabilities reported for the Intel Xeon W3670 include AVX-512, Extended Page Tables (EPT).

What is the Intel Xeon W3670 best for?

Based on its specifications, the Intel Xeon W3670 is well suited for Server / professional infrastructure.

How much cache does the Intel Xeon W3670 have?

The Intel Xeon W3670 has 384 KB of L1 cache, 1536 KB of L2 cache and 12 MB of L3 cache.

How does the Intel Xeon W3670 compare with the Intel Core i5-12400?

The Intel Xeon W3670 has a computed performance index of 38, which is 62% below the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.

Which features does the Intel Xeon W3670 not support?

The Intel Xeon W3670 does not support AMX.