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Intel Xeon 6740E specifications and in-depth review

Intel Xeon 6740E

Manufacturer: Intel

The Intel Xeon 6740E is a high-core-count processor designed for demanding enterprise workloads, sitting firmly within Intel's server-grade CPU lineup. With 96 cores running at a base clock of 2.4 GHz and a turbo frequency of 3.2 GHz, the chip is oriented toward throughput-intensive tasks where thread count and sustained performance matter most. It does not include integrated graphics, making it a purely compute-focused solution intended for server and data center environments.

From a technical standpoint, the Xeon 6740E carries a 250W thermal design power rating and supports a maximum junction temperature of 106°C. Its memory subsystem is built around DDR5 running at up to 6400 MHz across 8 channels, with a maximum supported capacity of 1000GB and a peak bandwidth of 409.6 GB/s. The processor supports ECC memory, which is standard for enterprise reliability requirements. On the connectivity side, it features PCIe 5.0 and a bus transfer rate of 20 GT/s. The 96MB of L3 cache — amounting to 1MB per core — and instruction set support including AVX2, AES, and FMA3 round out a specification sheet aimed squarely at professional server deployments. Its PassMark multi-threaded score sits at 76,167, with a single-threaded result of 1,997.

Pros
  • Supports up to 1000GB of DDR5 ECC memory across 8 channels, making it well-suited for memory-intensive server workloads
  • Peak memory bandwidth of 409.6 GB/s supports throughput-heavy applications without becoming a bottleneck
  • 96 MB of L3 cache distributed at 1 MB per core helps sustain consistent performance across all cores
  • PCIe 5.0 support enables high-speed connectivity for modern storage and networking components
  • Hardware AES instruction support allows encryption-related tasks to be handled at the processor level without heavy software overhead
  • NX bit support provides hardware-enforced memory protection, which is relevant for enterprise security requirements
Cons
  • A 250W TDP demands robust server cooling infrastructure, adding complexity to thermal management in dense deployments
  • No integrated graphics means an additional component is required in any environment where display output is needed
  • Single-threaded PassMark score of 1,997 indicates modest per-core performance, which may limit responsiveness in workloads that do not scale across many threads
  • Turbo frequency reaches only 3.2 GHz, leaving limited headroom above the 2.4 GHz base for single-threaded tasks
Who is this for?

The Xeon 6740E is well-matched to environments that demand sustained multi-threaded throughput at scale, such as data centers running virtualization, large-scale database workloads, or parallel compute tasks. Its 8-channel DDR5 memory subsystem with support for up to 1000GB of ECC RAM makes it a natural fit for memory-intensive server applications where data integrity is non-negotiable. Organizations deploying enterprise-grade server infrastructure with adequate thermal capacity and discrete graphics solutions will find the chip's specification profile closely aligned with professional deployment requirements.

Who is this NOT for?

This processor is not a practical choice for workloads that depend heavily on single-threaded performance, as the 1,997 single-core PassMark result and 3.2 GHz turbo frequency leave limited headroom for tasks that cannot be distributed across many cores. It is equally unsuitable for compact or thermally constrained environments, since the 250W TDP demands substantial cooling infrastructure that smaller form-factor systems typically cannot provide. Additionally, any setup that requires integrated display output will find this chip a poor fit, as it carries no integrated graphics and would require a separate solution to handle even basic visual needs.

General info:

Thermal Design Power (TDP) 250W
semiconductor size 5 nm
PCI Express (PCIe) version 5
Supports 64-bit ✓
CPU temperature 106 °C
Has integrated graphics ✕

The Intel Xeon 6740E carries a Thermal Design Power (TDP) of 250W and is built on a 5 nm semiconductor process, reflecting its positioning as a compute-dense enterprise processor. It supports the 64-bit instruction set and connects via PCIe 5.0, with a maximum rated CPU temperature of 106°C. The processor does not include integrated graphics, meaning a discrete graphics solution would be required in any deployment that needs display output.

Performance:

CPU speed 96 x 2.4 GHz
CPU threads 96 threads
turbo clock speed 3.2GHz
L3 cache 96 MB
L3 core 1 MB/core

The Intel Xeon 6740E offers 96 cores and 96 threads, each running at a base clock speed of 2.4 GHz with the ability to reach a turbo frequency of 3.2 GHz under sustained loads. To support this core count, the processor is equipped with 96 MB of L3 cache, which works out to 1 MB per core, providing each core with a consistent slice of fast on-die memory for latency-sensitive operations.

Memory:

Supports ECC memory ✓
maximum memory bandwidth 409.6 GB/s
DDR memory version 5
RAM speed (max) 6400 MHz
maximum memory amount 1000GB
memory channels 8
bus transfer rate 20 GT/s

The Xeon 6740E uses DDR5 memory running at up to 6400 MHz across 8 memory channels, enabling a peak bandwidth of 409.6 GB/s and a bus transfer rate of 20 GT/s. It supports a maximum installed capacity of 1000GB and includes ECC memory support, which helps detect and correct in-memory data errors — a standard requirement for enterprise and server deployments.

Features:

instruction sets MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
Has NX bit ✓

The Xeon 6740E supports a broad set of instruction sets including AVX, AVX2, FMA3, and AES, alongside MMX, F16C, SSE 4.1, and SSE 4.2, covering a range of workloads from vectorized floating-point operations to hardware-accelerated encryption. The processor also features the NX bit, which enables hardware-level memory protection by marking certain memory regions as non-executable.

Benchmarks:

PassMark result 76167
PassMark result (single) 1997

In PassMark testing, the Xeon 6740E achieves a multi-threaded score of 76,167, reflecting its capacity to handle heavily parallelized workloads across its full core count. Its single-threaded PassMark result stands at 1,997, representing the per-core performance available for tasks that do not scale across multiple threads.

Final Verdict

The Intel Xeon 6740E is a processor built with a clear and deliberate purpose: to serve enterprise environments where core count, memory capacity, and platform reliability take precedence over single-threaded agility. Its 96-core configuration backed by 8-channel DDR5 ECC memory with up to 1000GB capacity positions it firmly within the data center and server segment, where throughput at scale and data integrity are the primary concerns. The thermal and infrastructure demands are real, and the chip makes no concessions toward compact or consumer-adjacent deployments — but within its intended context, the specification profile is coherent and purposeful. For organizations building or expanding enterprise server infrastructure that can accommodate its requirements, the Xeon 6740E represents a well-defined workstation-class compute platform worthy of serious consideration.

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