Core i5-2400S vs FX-770K

Core i5-2400S vs FX-770K Performance Spectrum

Core i5-2400S

4 / 4

3,187

+0.5%

3,172

0.0%

Ryzen Threadripper 3990X

About PassMark

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 i5-2400S vs FX-770K 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 i5-2400S vs FX-770K: Pros, Cons & Final Verdict

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

Core i5-2400S

2011

Why buy it

✅+0.5% higher PassMark.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics 2000, while FX-770K needs a discrete GPU.
✅Includes a boxed cooler (Yes), unlike FX-770K.

Trade-offs

❌Worse for gaming: lower average FPS than FX-770K across 50 shared CPU benchmark tests.
❌Launch MSRP is still $135 MSRP, while FX-770K mostly shows up through inconsistent older-market listings.

FX-770K

2014

Why buy it

✅Better for gaming: +7.1% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark (3,172 vs 3,187).
❌No integrated graphics, while Core i5-2400S can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i5-2400S.

Quick Answers

So, is Core i5-2400S better than FX-770K?

It depends on what you want from the system. For gaming, FX-770K is ahead with a 7.1% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i5-2400S pulls ahead with 0.5% better PassMark.

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

For streaming, content creation, and heavier multitasking, Core i5-2400S is the stronger fit. You are getting 0.5% better PassMark, backed by 4 cores and 4 threads.

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

Core i5-2400S is the better buy right now. Core i5-2400S comes in at an unclear MSRP at $135 MSRP versus unclear MSRP, and it still gives you 0.5% better PassMark. The compromise is that FX-770K is still the better pure gaming CPU with a 7.1% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (23.6 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

FX-770K makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2014 vs 2011). That makes it the safer long-term bet.

Core i5-2400S vs FX-770K Technical Specifications

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

Core i5-2400S

The Core i5-2400S is manufactured by Intel. It was released in 9 January 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 3.3 GHz. L3 cache: 6144 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 3,187 points. Launch price was $141.

FX-770K

The FX-770K is manufactured by AMD. It was released in Dezembro 2014 (11 years ago). It is based on the Kaveri (2014−2015) architecture. It features 4 cores and 4 threads. Base frequency is 3.5 GHz, with boost up to 3.9 GHz. L2 cache: 4 MB. Built on 28 nm process technology. Socket: FM2+. Thermal design power (TDP): 65 Watt. Memory support: DDR3-2133. Passmark benchmark score: 3,172 points. Launch price was $69.

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Processing Power

Both the Core i5-2400S and FX-770K share an identical 4-core/4-thread configuration. Boost clocks reach 3.3 GHz on the Core i5-2400S versus 3.9 GHz on the FX-770K — a 16.7% clock advantage for the FX-770K (base: 2.5 GHz vs 3.5 GHz). The Core i5-2400S uses the Sandy Bridge (2011−2013) architecture (32 nm), while the FX-770K uses Kaveri (2014−2015) (28 nm). In PassMark, the Core i5-2400S scores 3,187 against the FX-770K's 3,172 — a 0.5% lead for the Core i5-2400S.

Feature	Core i5-2400S	FX-770K
Cores / Threads	4 / 4	4 / 4
Boost Clock	3.3 GHz	3.9 GHz+18%
Base Clock	2.5 GHz	3.5 GHz+40%
L3 Cache	6144 kB (total)	—
L2 Cache	256 kB (per core)	4 MB+1500%
Process	32 nm	28 nm-13%
Architecture	Sandy Bridge (2011−2013)	Kaveri (2014−2015)
PassMark	3,187	3,172
Cinebench R23 Multi	1,965	—
Geekbench 6 Single	578	—
Geekbench 6 Multi	1,966	—

🧠

Memory & Platform

The Core i5-2400S uses the LGA1155 socket (PCIe 2.0), while the FX-770K uses FM2+ (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i5-2400S	FX-770K
Socket	LGA1155	FM2+
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	DDR3-1333	—
Max RAM Capacity	32 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

🔧

Advanced Features

Virtualization: Yes (Core i5-2400S) / not specified (FX-770K). The Core i5-2400S includes integrated graphics (Intel HD Graphics 2000), while the FX-770K requires a dedicated GPU.

Feature	Core i5-2400S	FX-770K
Integrated GPU	Yes	—
IGPU Model	Intel HD Graphics 2000	—
AVX-512	No	—
Virtualization	Yes	—

💰

Value Analysis

At launch, the Core i5-2400S was priced at $135, while the FX-770K came in at $0. On launch pricing ($135 vs $0), FX-770K was $135 cheaper.

Feature	Core i5-2400S	FX-770K
MSRP	$135	$0-100%
Performance per Dollar	23.6	—
Release Date	2011	2014

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