Core i5-2500K vs FX-6300

Core i5-2500K vs FX-6300 Performance Spectrum

Core i5-2500K

4 / 4

4,141

+0.1%

4,137

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 i5-2500K vs FX-6300 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 i5-2500K vs FX-6300: Pros, Cons & Final Verdict

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

Core i5-2500K

2011

Why buy it

✅+28.1% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics 3000, while FX-6300 needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (6 MB vs 8 MB).
❌Lower PassMark per dollar, at 18.4 vs 31.3 PassMark/$ ($225 MSRP vs $132 MSRP).

FX-6300

2012

Why buy it

✅+33.3% larger total L3 cache (8 MB vs 6 MB).
✅Costs $93 less on MSRP ($132 MSRP vs $225 MSRP).
✅Delivers 70.3% more PassMark for each dollar spent, at 31.3 vs 18.4 PassMark/$ ($132 MSRP vs $225 MSRP).

Trade-offs

❌Lower Geekbench single-core performance for gaming (534 vs 684).
❌Lower PassMark (4,137 vs 4,141).
❌No integrated graphics, while Core i5-2500K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i5-2500K better than FX-6300?

Yes. Core i5-2500K is the better all-around CPU here. It gives you a 0.9% average FPS lead across 50 shared CPU game tests in our data and 0.1% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i5-2500K is the better pick. According to our tests, it delivers 0.9% 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 i5-2500K is the stronger fit. You are getting 0.1% better PassMark, backed by 4 cores and 4 threads.

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

Core i5-2500K is still the much better call for a fresh build. Core i5-2500K comes in 70.5% more expensive on MSRP at $225 MSRP versus $132 MSRP, and it still gives you a 0.9% average FPS lead across 50 shared CPU game tests in our data. FX-6300 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2012 platform. Even with 70.3% better value on paper (31.3 vs 18.4 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on AM3+.

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

FX-6300 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2012 vs 2011) and 33.3% larger total L3 cache (8 MB vs 6 MB). That makes it the safer long-term bet.

Core i5-2500K vs FX-6300 Technical Specifications

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

Core i5-2500K

The Core i5-2500K 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 3.3 GHz, with boost up to 3.7 GHz. L3 cache: 6 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 4,141 points. Launch price was $216.

FX-6300

The FX-6300 is manufactured by AMD. It was released in 23 October 2012 (13 years ago). It is based on the Vishera (2012−2015) architecture. It features 6 cores and 6 threads. Base frequency is 3.5 GHz, with boost up to 3.8 GHz. L3 cache: 8192 kB. L2 cache: 6144 kB. Built on 32 nm process technology. Socket: AM3+. Thermal design power (TDP): 95 Watt. Memory support: DDR3-1866. Passmark benchmark score: 4,137 points. Launch price was $132.

⚡

Processing Power

The Core i5-2500K packs 4 cores / 4 threads, while the FX-6300 offers 6 cores / 6 threads — the FX-6300 has 2 more cores. Boost clocks reach 3.7 GHz on the Core i5-2500K versus 3.8 GHz on the FX-6300 — a 2.7% clock advantage for the FX-6300 (base: 3.3 GHz vs 3.5 GHz). The Core i5-2500K uses the Sandy Bridge (2011−2013) architecture (32 nm), while the FX-6300 uses Vishera (2012−2015) (32 nm). In PassMark, the Core i5-2500K scores 4,141 against the FX-6300's 4,137 — a 0.1% lead for the Core i5-2500K. Geekbench 6 single-core — the metric most relevant to gaming — records 684 vs 534, a 24.6% lead for the Core i5-2500K that directly translates to higher frame rates. L3 cache: 6 MB (total) on the Core i5-2500K vs 8192 kB on the FX-6300.

Feature	Core i5-2500K	FX-6300
Cores / Threads	4 / 4	6 / 6+50%
Boost Clock	3.7 GHz	3.8 GHz+3%
Base Clock	3.3 GHz	3.5 GHz+6%
L3 Cache	6 MB (total)	8192 kB+33%
L2 Cache	256K (per core)	6144 kB+2300%
Process	32 nm	32 nm
Architecture	Sandy Bridge (2011−2013)	Vishera (2012−2015)
PassMark	4,141	4,137
Cinebench R23 Multi	3,200	—
Geekbench 6 Single	684+28%	534
Geekbench 6 Multi	2,032	—

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Memory & Platform

The Core i5-2500K uses the LGA1155 socket (PCIe 2.0), while the FX-6300 uses AM3+ (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Core i5-2500K versus DDR3-1866 on the FX-6300 — the FX-6300 supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 32 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i5-2500K) vs 0 (FX-6300) — the Core i5-2500K offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: P67,Z68,Z77 (Core i5-2500K) and AMD 990FX,AMD 970 (FX-6300).

Feature	Core i5-2500K	FX-6300
Socket	LGA1155	AM3+
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-1333	DDR3-1866+40%
Max RAM Capacity	32 GB	32 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	0

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Virtualization support: VT-x (Core i5-2500K) vs AMD-V (FX-6300). The Core i5-2500K includes integrated graphics (HD Graphics 3000), while the FX-6300 requires a dedicated GPU. Primary use case: Core i5-2500K targets Gaming. Direct competitor: Core i5-2500K rivals FX-6300.

Feature	Core i5-2500K	FX-6300
Integrated GPU	Yes	No
IGPU Model	HD Graphics 3000	—
Unlocked	Yes	Yes
AVX-512	No	No
Virtualization	VT-x	AMD-V
Target Use	Gaming	—

💰

Value Analysis

At launch, the Core i5-2500K was priced at $225, while the FX-6300 came in at $132. On launch pricing ($225 vs $132), FX-6300 was $93 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-2500K delivers 18.4 pts/$ vs 31.3 pts/$ for the FX-6300 — making the FX-6300 the 52% better value option.

Feature	Core i5-2500K	FX-6300
MSRP	$225	$132-41%
Performance per Dollar	18.4	31.3+70%
Release Date	2011	2012

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