Intel® Xeon™ X5677

The Intel Xeon X5677 is a server processor with 4 cores and 8 threads, built on the Westmere architecture. It launched in 2010. Clocks run from 3.5 GHz base to 3.7 GHz boost. A 12-MB L3 cache backs the cores (3.3 MB per core). It supports DDR3 memory. It uses the FCLGA1366 socket. Rated TDP is 130 W.

The Intel Xeon X5677 scores 1,611 in single-core performance and 5,064 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 2,856 for overall performance, 5,547 for productivity performance, 5,685 for creator performance, 4,874 for engineering performance and 6,099 for gaming performance. Its multi-core throughput works out to 1,266 per core, 633 per thread and 39 per watt. Its computed efficiency index is 251. Its performance index is 35, so its overall performance is 65% 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.

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.

In the individual workload tests the Intel Xeon X5677 scores 19,987 in integer math, 8,459 in floating-point math, 83,423 in compression, 1,852 in cryptography, 449 in physics simulation, 2,307 in vector SIMD, 29 in the prime sieve and 10,820 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 66% below in integer math, 82% below in floating-point math, 63% below in compression, 84% below in cryptography, 59% below in physics simulation, 85% below in vector SIMD, 57% below in the prime sieve and 52% 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.

The Intel Xeon X5677 has 4 physical cores and runs 8 logical threads. It runs 2 threads per core. It runs at a base clock of 3.50 GHz and boosts up to 3.70 GHz.

The Intel Xeon X5677 is a server processor, belongs to the Intel Xeon family and uses the Westmere architecture. It launched in 2010.

The Intel Xeon X5677 has 256 KB of L1 cache, 1 MB of L2 cache and 12 MB of L3 cache. That adds up to about 13.3 MB of cache, or 3.31 MB per core. Each core has 256 KB of private L2 cache.

The Intel Xeon X5677 has a 3-level cache hierarchy: L1 at 256 KB, L2 at 1 MB and L3 at 12 MB. L3 is the largest level and makes up about 91% of the cache listed here.

The Intel Xeon X5677 supports DDR3 memory and runs memory at up to 1,333 MT/s. It does not support DDR5, DDR4 and LPDDR memory.

The Intel Xeon X5677 uses the FCLGA1366 socket.

The Intel Xeon X5677 has a rated TDP of 130 W.

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.

The Intel Xeon X5677 is manufactured by Intel. It launched at a price of $1,663.

Feex has recorded 47% of the specifications it tracks for the Intel Xeon X5677. 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. Graphics: Integrated Graphics, Graphics Model, Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video 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.

Processors that use the same FCLGA1366 socket as the Intel Xeon X5677 and have the closest multi-core scores in the Feex database include Intel Xeon X5672, Intel Xeon E5645, Intel Xeon L5640, Intel Xeon X5687 and Intel Xeon X5667.