Core i5-6400T vs Pentium Gold G6500

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Core i5-6400T vs Pentium Gold G6500 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core i5-6400T vs Pentium Gold G6500: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i5-6400T

2015

Why buy it

✅+1.4% higher PassMark.
✅+50% larger total L3 cache (6 MB vs 4 MB).
✅Draws 1W instead of 58W, a 57W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD 530, while Pentium Gold G6500 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Pentium Gold G6500 across 50 shared CPU benchmark tests.
❌Launch MSRP is still $192 MSRP, while Pentium Gold G6500 mostly shows up through inconsistent older-market listings.

Pentium Gold G6500

2020

Why buy it

✅Better for gaming: +6.1% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark (4,185 vs 4,243).
❌Smaller total L3 cache (4 MB vs 6 MB).
❌5700% higher power demand at 58W vs 1W.
❌No integrated graphics, while Core i5-6400T can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i5-6400T.

Quick Answers

So, is Core i5-6400T better than Pentium Gold G6500?

It depends on what you want from the system. For gaming, Pentium Gold G6500 is ahead with a 6.1% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i5-6400T pulls ahead with 1.4% better PassMark. Core i5-6400T also has the bigger cache pool with 50% larger total L3 cache (6 MB vs 4 MB).

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core i5-6400T is the stronger fit. You are getting 1.4% better PassMark, backed by 4 cores and 4 threads. It also has the larger cache pool with 50% larger total L3 cache (6 MB vs 4 MB).

Which one is the smarter buy today, not just the cheaper CPU?

Core i5-6400T is the better buy right now. Core i5-6400T comes in at an unclear MSRP at $192 MSRP versus unclear MSRP, and it still gives you 1.4% better PassMark. The compromise is that Pentium Gold G6500 is still the better pure gaming CPU with a 6.1% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (22.1 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper. That said, if you already own a compatible LGA1200 + DDR4 setup, Pentium Gold G6500 can still make sense as a platform-matched option because it avoids a motherboard and RAM swap.

Which one is more future-proof for 2026 and beyond?

Pentium Gold G6500 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2015). That makes it the safer long-term bet.

Core i5-6400T vs Pentium Gold G6500 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Core i5-6400T

The Core i5-6400T is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 4 cores and 4 threads. Base frequency is 2.2 GHz, with boost up to 2.8 GHz. L3 cache: 6 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 35 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 4,243 points. Launch price was $192.

Pentium Gold G6500

The Pentium Gold G6500 is manufactured by Intel. It was released in 2007-01-01. It is based on the Comet Lake (2020−2025) architecture. It features 2 cores and 4 threads. Base frequency is 4.1 GHz, with boost up to 4.1 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 58 Watt. Memory support: DDR4-2666. Passmark benchmark score: 4,185 points. Launch price was $69.

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Processing Power

The Core i5-6400T packs 4 cores / 4 threads, while the Pentium Gold G6500 offers 2 cores / 4 threads — the Core i5-6400T has 2 more cores. Boost clocks reach 2.8 GHz on the Core i5-6400T versus 4.1 GHz on the Pentium Gold G6500 — a 37.7% clock advantage for the Pentium Gold G6500 (base: 2.2 GHz vs 4.1 GHz). The Core i5-6400T uses the Skylake (2015−2016) architecture (14 nm), while the Pentium Gold G6500 uses Comet Lake (2020−2025) (14 nm). In PassMark, the Core i5-6400T scores 4,243 against the Pentium Gold G6500's 4,185 — a 1.4% lead for the Core i5-6400T. L3 cache: 6 MB on the Core i5-6400T vs 4 MB (total) on the Pentium Gold G6500.

Feature	Core i5-6400T	Pentium Gold G6500
Cores / Threads	4 / 4+100%	2 / 4
Boost Clock	2.8 GHz	4.1 GHz+46%
Base Clock	2.2 GHz	4.1 GHz+86%
L3 Cache	6 MB+50%	4 MB (total)
L2 Cache	1 MB	256K (per core)+25500%
Process	14 nm	14 nm
Architecture	Skylake (2015−2016)	Comet Lake (2020−2025)
PassMark	4,243+1%	4,185
Cinebench R23 Multi	2,200	—
Geekbench 6 Single	950	—
Geekbench 6 Multi	2,600	—

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Memory & Platform

The Core i5-6400T uses the LGA1151 socket (PCIe 3.0), while the Pentium Gold G6500 uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i5-6400T	Pentium Gold G6500
Socket	LGA1151	LGA1200
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2133	—
Max RAM Capacity	64 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i5-6400T) / not specified (Pentium Gold G6500). The Core i5-6400T includes integrated graphics (HD 530), while the Pentium Gold G6500 requires a dedicated GPU. Primary use case: Core i5-6400T targets Budget. Direct competitor: Core i5-6400T rivals Core i3-7100.