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 i5-11400T vs Core i7-7800X 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 i5-11400T vs Core i7-7800X: Pros, Cons & Final Verdict

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

Core i5-11400T

2021

Why buy it

✅+45.5% larger total L3 cache (12 MB vs 8.3 MB).
✅Costs $201 less on MSRP ($182 MSRP vs $383 MSRP).
✅Delivers 111.6% more PassMark for each dollar spent, at 71.6 vs 33.8 PassMark/$ ($182 MSRP vs $383 MSRP).
✅Draws 35W instead of 140W, a 105W reduction.
✅Integrated graphics onboard with UHD 730, while Core i7-7800X needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-7800X across 50 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (3,891 vs 6,897).

Core i7-7800X

2017

Why buy it

✅Better for gaming: +11.2% higher average FPS across 50 shared CPU benchmark tests.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Smaller total L3 cache (8.3 MB vs 12 MB).
❌Lower PassMark per dollar, at 33.8 vs 71.6 PassMark/$ ($383 MSRP vs $182 MSRP).
❌300% higher power demand at 140W vs 35W.
❌No integrated graphics, while Core i5-11400T can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i5-11400T.

Quick Answers

So, is Core i7-7800X better than Core i5-11400T?

Yes. Core i7-7800X is the better all-around CPU here. It gives you a 11.2% average FPS lead across 50 shared CPU game tests in our data and 77.3% better Cinebench R23 multi-core, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i7-7800X is the better pick. According to our tests, it delivers 11.2% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core i7-7800X is the stronger fit. You are getting 77.3% better Cinebench R23 multi-core, backed by 6 cores and 12 threads.

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

Core i7-7800X is still the faster CPU overall, but Core i5-11400T is easier to justify if budget matters more than peak performance. Core i7-7800X comes in 110.4% more expensive on MSRP at $383 MSRP versus $182 MSRP, and it still gives you a 11.2% average FPS lead across 50 shared CPU game tests in our data. Core i5-11400T is also 111.6% better value on MSRP (71.6 vs 33.8 PassMark/$), which is why it can still make sense for tighter-budget builds on paper. That said, if you already own a compatible LGA1200 + DDR4 setup, Core i5-11400T 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?

Core i5-11400T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2017) and 45.5% larger total L3 cache (12 MB vs 8.3 MB). That makes it the safer long-term bet.

Core i5-11400T vs Core i7-7800X Technical Specifications

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

Core i5-11400T

The Core i5-11400T is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Rocket Lake (2021) architecture. It features 6 cores and 12 threads. Base frequency is 1.3 GHz, with boost up to 3.7 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 35 Watt. Memory support: DDR4. Passmark benchmark score: 13,034 points. Launch price was $182.

Core i7-7800X

The Core i7-7800X is manufactured by Intel. It was released in 26 June 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 4 GHz. L3 cache: 8.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 140 Watt. Memory support: DDR4-2400. Passmark benchmark score: 12,963 points. Launch price was $383.

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Processing Power

Both the Core i5-11400T and Core i7-7800X share an identical 6-core/12-thread configuration. Boost clocks reach 3.7 GHz on the Core i5-11400T versus 4 GHz on the Core i7-7800X — a 7.8% clock advantage for the Core i7-7800X (base: 1.3 GHz vs 3.5 GHz). The Core i5-11400T uses the Rocket Lake (2021) architecture (14 nm), while the Core i7-7800X uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i5-11400T scores 13,034 against the Core i7-7800X's 12,963 — a 0.5% lead for the Core i5-11400T. Cinebench R23 multi-core: 3,891 vs 6,897 (55.7% advantage for the Core i7-7800X). Geekbench 6 single-core — the metric most relevant to gaming — records 1,767 vs 1,114, a 45.3% lead for the Core i5-11400T that directly translates to higher frame rates. Multi-core Geekbench: 6,179 vs 6,951 (11.8% advantage for the Core i7-7800X). L3 cache: 12 MB (total) on the Core i5-11400T vs 8.25 MB (total) on the Core i7-7800X.

Feature	Core i5-11400T	Core i7-7800X
Cores / Threads	6 / 12	6 / 12
Boost Clock	3.7 GHz	4 GHz+8%
Base Clock	1.3 GHz	3.5 GHz+169%
L3 Cache	12 MB (total)+45%	8.25 MB (total)
L2 Cache	256K (per core)+25500%	1 MB (per core)
Process	14 nm	14 nm
Architecture	Rocket Lake (2021)	Skylake (server) (2017−2018)
PassMark	13,034	12,963
Cinebench R23 Multi	3,891	6,897+77%
Geekbench 6 Single	1,767+59%	1,114
Geekbench 6 Multi	6,179	6,951+12%

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Memory & Platform

The Core i5-11400T uses the LGA1200 socket (PCIe 4.0), while the Core i7-7800X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Core i5-11400T versus DDR4-2400 on the Core i7-7800X — the Core i5-11400T supports 33.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Memory channels: 2 (Core i5-11400T) vs 4 (Core i7-7800X). PCIe lanes: 20 (Core i5-11400T) vs 28 (Core i7-7800X) — the Core i7-7800X offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H510,B560,Z590,H470,Z490 (Core i5-11400T) and X299 (Core i7-7800X).

Feature	Core i5-11400T	Core i7-7800X
Socket	LGA1200	LGA2066
PCIe Generation	PCIe 4.0+33%	PCIe 3.0
Max RAM Speed	DDR4-3200+33%	DDR4-2400
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	4+100%
ECC Support	No	No
PCIe Lanes	20	28+40%

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Advanced Features

Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d, EPT (Core i5-11400T) vs Yes (Core i7-7800X). The Core i5-11400T includes integrated graphics (UHD 730), while the Core i7-7800X requires a dedicated GPU. Primary use case: Core i5-11400T targets Productivity. Direct competitor: Core i5-11400T rivals Core i5-11400.

Feature	Core i5-11400T	Core i7-7800X
Integrated GPU	Yes	No
IGPU Model	UHD 730	—
Unlocked	No	—
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d, EPT	Yes
Target Use	Productivity	—

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Value Analysis

At launch, the Core i5-11400T was priced at $182, while the Core i7-7800X came in at $383. On launch pricing ($182 vs $383), Core i5-11400T was $201 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-11400T delivers 71.6 pts/$ vs 33.8 pts/$ for the Core i7-7800X — making the Core i5-11400T the 71.6% better value option.

Feature	Core i5-11400T	Core i7-7800X
MSRP	$182-52%	$383
Performance per Dollar	71.6+112%	33.8
Release Date	2021	2017

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