Feex·CPU
Intel · Pentium Gold · Desktop

Intel® Pentium® Gold G6405T

The Intel Pentium Gold G6405T is a desktop processor released on January 1, 2021, built on the Comet Lake architecture using a 14 nm process. It has 2 cores and 4 threads, a base clock of 3.50 GHz, 4 MB of L3 cache, a 35 W TDP and the FCLGA1200 socket.

IntelPentium GoldDesktopFCLGA1200Comet LakeTDP 35 W14 nmIntegrated graphics2021
Cores
2
Threads
4
Base Clock
3.5 GHz
Architecture
Comet Lake
Socket
FCLGA1200
Process Node
14 nm
TDP
35 W
L3 Cache
4 MB
Core layout
PP
2 Performance 4 Threads
Notable capabilities:Extended Page Tables (EPT)

Best for

Mini PCs and graphics-included builds

Overview

The Intel Pentium Gold G6405T is a desktop processor with 2 cores and 4 threads, built on the Comet Lake architecture (14 nm process). It launched in Jan 2021. A 4-MB L3 cache backs the cores (2.3 MB per core). It addresses DDR4 memory up to 128 GB across 2 channels. The chip drops into the FCLGA1200 socket and exposes PCIe 3.0 (16 lanes). Rated TDP is 35 W. Notable platform capabilities: Extended Page Tables (EPT).

Performance

Overall CPU Performance computed
2,387
10% of reference
Reference ceiling 25,000
Multi-Core Performance PassMark rating
3,128
3% of reference
Reference ceiling 120,000
Single-Core Performance PassMark rating
1,821
33% of reference
Reference ceiling 5,500
Productivity Performance computed
4,583
3% of reference
Reference ceiling 160,000
Creator Performance computed
4,998
4% of reference
Reference ceiling 140,000
Engineering Performance computed
2,913
1% of reference
Reference ceiling 200,000
Gaming Performance computed
6,245
28% of reference
Reference ceiling 22,000
Performance per Core computed
1,564
7% of reference
Reference ceiling 21,053
Performance per Thread computed
782
7% of reference
Reference ceiling 10,527
Performance per Watt computed
89
4% of reference
Reference ceiling 2,000
Efficiency Index computed
403
10% of reference
Reference ceiling 4,000
Performance index computed
30
Intel Core i5-12400 = 100

The Intel Pentium Gold G6405T scores 1,821 in single-core performance and 3,128 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 2,387 for overall performance, 4,583 for productivity performance, 4,998 for creator performance, 2,913 for engineering performance and 6,245 for gaming performance. Its multi-core throughput works out to 1,564 per core, 782 per thread and 89 per watt. Its computed efficiency index is 403. Its performance index is 30, so its overall performance is 70% 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
10,509
2% of reference
Reference ceiling 617,811
82% below the Intel Core i5-12400 (58,893)
Raw integer arithmetic throughput across cores.
Floating-Point Math
6,556
1% of reference
Reference ceiling 600,000
86% below the Intel Core i5-12400 (45,899)
Heavy floating-point math, mixed precision.
Compression Performance
47,298
2% of reference
Reference ceiling 2,309,868
79% below the Intel Core i5-12400 (228,054)
Throughput on lossless compression workloads.
Cryptography Performance
1,121
1% of reference
Reference ceiling 137,106
90% below the Intel Core i5-12400 (11,489)
Symmetric encryption and hashing throughput.
Physics Simulation
320
3% of reference
Reference ceiling 12,291
71% below the Intel Core i5-12400 (1,090)
Iterative physics & rigid-body simulation.
Vector / SIMD Throughput
1,333
1% of reference
Reference ceiling 172,975
91% below the Intel Core i5-12400 (15,509)
Wide-vector SIMD intrinsics performance.
Prime Sieve
15
1% of reference
Reference ceiling 1,067
78% below the Intel Core i5-12400 (67)
Searching for prime numbers (branch-heavy work).
Sort Performance
6,190
2% of reference
Reference ceiling 260,323
73% below the Intel Core i5-12400 (22,652)
Random string sorting throughput.

In the individual workload tests the Intel Pentium Gold G6405T scores 10,509 in integer math, 6,556 in floating-point math, 47,298 in compression, 1,121 in cryptography, 320 in physics simulation, 1,333 in vector SIMD, 15 in the prime sieve and 6,190 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 82% below in integer math, 86% below in floating-point math, 79% below in compression, 90% below in cryptography, 71% below in physics simulation, 91% below in vector SIMD, 78% below in the prime sieve and 73% 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
2
Threads
4
Threads per Core
2
Base Clock
3.5 GHz
Boost Clock
Not recorded

The Intel Pentium Gold G6405T has 2 physical cores and runs 4 logical threads. It runs 2 threads per core. It runs at a base clock of 3.50 GHz.

Architecture & Generation

Manufacturer
Intel
Family
Pentium Gold
Segment
Desktop
Generation
Intel Pentium Gold Processor Series
Architecture
Comet Lake
Codename
Comet Lake
Process Node
14 nm
Lithography
14 nm
Release Date
Jan 2021

The Intel Pentium Gold G6405T is a desktop processor, belongs to the Intel Pentium Gold family, uses the Comet Lake architecture, carries the codename Comet Lake and is manufactured on a 14 nm process. It launched in Jan 2021.

Cache

L1 Cache (Total)
128 KB
L2 Cache (Total)
512 KB
L2 Cache (per Core)
256 KB
L3 Cache
4 MB
Cache per Core
2.3 MB
Total Cache
4.6 MB

The Intel Pentium Gold G6405T has 128 KB of L1 cache, 512 KB of L2 cache and 4 MB of L3 cache. That adds up to about 4.6 MB of cache, or 2.31 MB per core. Each core has 256 KB of private L2 cache.

Cache Hierarchy

L1L2L3
L1 128 KBL2 512 KBL3 4 MB

The Intel Pentium Gold G6405T has a 3-level cache hierarchy: L1 at 128 KB, L2 at 512 KB and L3 at 4 MB. L3 is the largest level and makes up about 86% of the cache listed here.

Memory Support

Max Memory
128 GB
Memory Channels
2
Memory Bandwidth
42.7 GB/s
Memory Types
DDR4
DDR5 Support
No
DDR4 Support
Yes
LPDDR Support
No
Max Memory Speed
2,666

The Intel Pentium Gold G6405T supports DDR4 memory, addresses up to 128 GB of memory, uses 2 memory channels, runs memory at up to 2,666 MT/s and delivers up to 42.7 GB/s of memory bandwidth. It does not support DDR5 and LPDDR memory.

Graphics

Integrated Graphics
Yes
Graphics Model
Intel UHD Graphics 610

The Intel Pentium Gold G6405T includes integrated graphics (Intel UHD Graphics 610).

Platform & Compatibility

Socket
FCLGA1200
PCIe Generation
3.0
PCIe Lanes
16

The Intel Pentium Gold G6405T uses the FCLGA1200 socket, supports PCI Express 3.0 and provides up to 16 PCIe lanes.

Power & Thermals

TDP
35 W

The Intel Pentium Gold G6405T has a rated TDP of 35 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

8 supported
Supported
64-bit (x86-64)SSE4.1SSE4.2SSESSE2SSE3SSSE3MMX
Not recorded
AES-NIAMXAVX-512AVX2AVXAVX-VNNI

Security and Reliability

3 supported
Supported
Boot GuardHardware RNGOS Guard
Not recorded
AES-NIControl-flow Enforcement (CET)Execute Disable (NX)Hardware ShieldOS Guard (SMAP)SGX

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

The Intel Pentium Gold G6405T supports 64-bit (x86-64), SSE4.1, SSE4.2, SSE, SSE2, SSE3, SSSE3 and MMX among its instruction set features. Feex has no record for AES-NI, AMX, AVX-512, AVX2, AVX and AVX-VNNI, which is different from being unsupported.

The Intel Pentium Gold G6405T supports Boot Guard, Hardware RNG and OS Guard among its security features. Feex has no record for AES-NI, Control-flow Enforcement (CET), Execute Disable (NX), Hardware Shield, OS Guard (SMAP) and SGX, which is different from being unsupported.

The Intel Pentium Gold G6405T 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.

Physical & Manufacturing

Launch Price
$77

The Intel Pentium Gold G6405T is manufactured by Intel. It launched at a price of $77.

Naming & Aliases

Display Name
Intel® Pentium® Gold G6405T
Model Number
G6405T
Product line brand
Pentium

The Intel Pentium Gold G6405T is also identified by the model number G6405T.

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Pentium Gold G6405T 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 60% of the specifications it tracks for the Intel Pentium Gold G6405T. 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: ISA Family and Market Status. Cache: L4 Cache. Memory Support: ECC Memory. Graphics: Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package and Package Size. 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: Normalized Name, SKU, Processor Number and Part Number.

Common questions

How many cores and threads does the Intel Pentium Gold G6405T have?

The Intel Pentium Gold G6405T has 2 cores and 4 threads.

What architecture does the Intel Pentium Gold G6405T use?

The Intel Pentium Gold G6405T is built on the Comet Lake architecture on a 14 nm process.

Does the Intel Pentium Gold G6405T have integrated graphics?

Yes. The Intel Pentium Gold G6405T includes integrated graphics: Intel UHD Graphics 610.

What socket does the Intel Pentium Gold G6405T use?

The Intel Pentium Gold G6405T uses the FCLGA1200 socket.

What memory does the Intel Pentium Gold G6405T support?

The Intel Pentium Gold G6405T supports DDR4 up to 128 GB across 2 channels.

What is the TDP of the Intel Pentium Gold G6405T?

The Intel Pentium Gold G6405T has a TDP of 35 W.

How does the Intel Pentium Gold G6405T perform?

In the Feex normalized performance dataset, the Intel Pentium Gold G6405T scores 3,128 multi-core and 1,821 single-core.

What advanced capabilities does the Intel Pentium Gold G6405T support?

Notable platform capabilities reported for the Intel Pentium Gold G6405T include Extended Page Tables (EPT).

What is the Intel Pentium Gold G6405T best for?

Based on its specifications, the Intel Pentium Gold G6405T is well suited for Mini PCs and graphics-included builds.

How much cache does the Intel Pentium Gold G6405T have?

The Intel Pentium Gold G6405T has 128 KB of L1 cache, 512 KB of L2 cache and 4 MB of L3 cache.

How does the Intel Pentium Gold G6405T compare with the Intel Core i5-12400?

The Intel Pentium Gold G6405T has a computed performance index of 30, which is 70% below the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.