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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Core i7-6700K

2015

Why buy it

✅Costs $99 less on MSRP ($350 MSRP vs $449 MSRP).
✅Draws 91W instead of 120W, a 29W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 7 shared CPU benchmark tests.
❌Lower PassMark (8,933 vs 34,293).
❌Lower PassMark per dollar, at 25.5 vs 76.4 PassMark/$ ($350 MSRP vs $449 MSRP).
❌Older platform position on LGA1151 with DDR4, while Ryzen 7 7800X3D moves to AM5 and DDR5.

Ryzen 7 7800X3D

2023

Why buy it

✅Better for gaming: +122.1% higher average FPS across 7 shared CPU benchmark tests.
✅Delivers 199.2% more PassMark for each dollar spent, at 76.4 vs 25.5 PassMark/$ ($449 MSRP vs $350 MSRP).
✅Newer platform on AM5 with DDR5 support instead of LGA1151 and DDR4.
✅75% more PCIe lanes (28 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌
28.3% HIGHER MSRP
$449 MSRPvs$350 MSRP
❌31.9% higher power demand at 120W vs 91W.

Core i7-6700K

2015

Ryzen 7 7800X3D

2023

Why buy it

✅Costs $99 less on MSRP ($350 MSRP vs $449 MSRP).
✅Draws 91W instead of 120W, a 29W reduction.

Why buy it

✅Better for gaming: +122.1% higher average FPS across 7 shared CPU benchmark tests.
✅Delivers 199.2% more PassMark for each dollar spent, at 76.4 vs 25.5 PassMark/$ ($449 MSRP vs $350 MSRP).
✅Newer platform on AM5 with DDR5 support instead of LGA1151 and DDR4.
✅75% more PCIe lanes (28 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 7 shared CPU benchmark tests.
❌Lower PassMark (8,933 vs 34,293).
❌Lower PassMark per dollar, at 25.5 vs 76.4 PassMark/$ ($350 MSRP vs $449 MSRP).
❌Older platform position on LGA1151 with DDR4, while Ryzen 7 7800X3D moves to AM5 and DDR5.

Trade-offs

❌
28.3% HIGHER MSRP
$449 MSRPvs$350 MSRP
❌31.9% higher power demand at 120W vs 91W.

Quick Answers

So, is Ryzen 7 7800X3D better than Core i7-6700K?

Yes. Ryzen 7 7800X3D is the better overall CPU here. You are getting a 122.1% average FPS lead across 7 shared CPU game tests in our data, 283.9% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen 7 7800X3D is the better pick here. According to our tests, it delivers 122.1% more average FPS across 7 shared CPU game tests. It also has a big cache advantage at 96 MB vs 8 MB.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 7800X3D is the better fit. You are getting 283.9% better PassMark, backed by 8 cores and 16 threads. It also carries the larger cache pool with 1100% larger total L3 cache (96 MB vs 8 MB).

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

Ryzen 7 7800X3D is the smarter buy today. Ryzen 7 7800X3D is 28.3% more expensive on MSRP at $449 MSRP versus $350 MSRP, and it gives you a 122.1% average FPS lead across 7 shared CPU game tests in our data. It is also 199.2% better value on MSRP (76.4 vs 25.5 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Ryzen 7 7800X3D is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2015), a healthier platform with AM5 and DDR5 instead of LGA1151, 3D V-Cache and a much larger 96 MB L3 cache instead of 8 MB, and more multi-core headroom with 8 cores / 16 threads instead of 4/8. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Core i7-6700K Benchmark Check

Ryzen 7 7800X3D Benchmark Check

Path of Exile 2

Preset	Core i7-6700K	Ryzen 7 7800X3D
1080p
low	207 FPS	266 FPS
medium	164 FPS	247 FPS
high	131 FPS	211 FPS
ultra	94 FPS	186 FPS
1440p
low	179 FPS	258 FPS
medium	141 FPS	215 FPS
high	111 FPS	171 FPS
ultra	79 FPS	154 FPS
4K
low	72 FPS	179 FPS
medium	60 FPS	149 FPS
high	47 FPS	112 FPS
ultra	37 FPS	100 FPS

Open Core i7-6700K Open Ryzen 7 7800X3D

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-6700K	Ryzen 7 7800X3D
1080p
low	223 FPS	857 FPS
medium	220 FPS	737 FPS
high	199 FPS	580 FPS
ultra	168 FPS	493 FPS
1440p
low	223 FPS	722 FPS
medium	196 FPS	611 FPS
high	177 FPS	500 FPS
ultra	150 FPS	398 FPS
4K
low	182 FPS	396 FPS
medium	159 FPS	339 FPS
high	135 FPS	315 FPS
ultra	110 FPS	273 FPS

Open Core i7-6700K Open Ryzen 7 7800X3D

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-6700K	Ryzen 7 7800X3D
1080p
low	223 FPS	857 FPS
medium	223 FPS	857 FPS
high	223 FPS	857 FPS
ultra	223 FPS	857 FPS
1440p
low	223 FPS	857 FPS
medium	223 FPS	851 FPS
high	223 FPS	786 FPS
ultra	223 FPS	656 FPS
4K
low	223 FPS	558 FPS
medium	223 FPS	479 FPS
high	223 FPS	427 FPS
ultra	223 FPS	362 FPS

Open Core i7-6700K Open Ryzen 7 7800X3D

League of Legends

League of Legends

Valorant

Preset	Core i7-6700K	Ryzen 7 7800X3D
1080p
low	223 FPS	857 FPS
medium	223 FPS	857 FPS
high	223 FPS	857 FPS
ultra	223 FPS	782 FPS
1440p
low	223 FPS	857 FPS
medium	223 FPS	760 FPS
high	223 FPS	669 FPS
ultra	223 FPS	576 FPS
4K
low	223 FPS	618 FPS
medium	223 FPS	556 FPS
high	223 FPS	495 FPS
ultra	223 FPS	428 FPS

Open Core i7-6700K Open Ryzen 7 7800X3D

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-6700K and Ryzen 7 7800X3D

Core i7-6700K

The Core i7-6700K is manufactured by Intel. It was released in 5 August 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 4 cores and 8 threads. Base frequency is 4 GHz, with boost up to 4.2 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 91 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 8,933 points. Launch price was $339.

Ryzen 7 7800X3D

The Ryzen 7 7800X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 8 cores and 16 threads. Base frequency is 4.4 GHz, with boost up to 5 GHz. L3 cache: 96 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 34,293 points. Launch price was $449.

⚡

Processing Power

The Core i7-6700K packs 4 cores / 8 threads, while the Ryzen 7 7800X3D offers 8 cores / 16 threads — the Ryzen 7 7800X3D has 4 more cores. Boost clocks reach 4.2 GHz on the Core i7-6700K versus 5 GHz on the Ryzen 7 7800X3D — a 17.4% clock advantage for the Ryzen 7 7800X3D (base: 4 GHz vs 4.4 GHz). The Core i7-6700K uses the Skylake (2015−2016) architecture (14 nm), while the Ryzen 7 7800X3D uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the Core i7-6700K scores 8,933 against the Ryzen 7 7800X3D's 34,293 — a 117.3% lead for the Ryzen 7 7800X3D. L3 cache: 8 MB (total) on the Core i7-6700K vs 96 MB (total) on the Ryzen 7 7800X3D.

Feature	Core i7-6700K	Ryzen 7 7800X3D
Cores / Threads	4 / 8	8 / 16+100%
Boost Clock	4.2 GHz	5 GHz+19%
Base Clock	4 GHz	4.4 GHz+10%
L3 Cache	8 MB (total)	96 MB (total)+1100%
L2 Cache	256 kB (per core)	1 MB (per core)+300%
Process	14 nm	5 nm-64%
Architecture	Skylake (2015−2016)	Raphael (Zen4) (2022−2023)
PassMark	8,933	34,293+284%
Cinebench R23 Multi	—	18,500
Geekbench 6 Single	—	2,700
Geekbench 6 Multi	—	15,000

🧠

Memory & Platform

The Core i7-6700K uses the LGA1151 socket (PCIe 3.0), while the Ryzen 7 7800X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2133 on the Core i7-6700K versus DDR5-5200 on the Ryzen 7 7800X3D — the Ryzen 7 7800X3D supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 7800X3D supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i7-6700K) vs 28 (Ryzen 7 7800X3D) — the Ryzen 7 7800X3D offers 12 more lanes for additional GPUs or NVMe drives.

Feature	Core i7-6700K	Ryzen 7 7800X3D
Socket	LGA1151	AM5
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR4-2133	DDR5-5200+25%
Max RAM Capacity	64 GB	128 GB+100%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	16	28+75%

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 7 7800X3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i7-6700K) vs AMD-V (Ryzen 7 7800X3D). Both include integrated graphics — HD Graphics 530 (Core i7-6700K) and AMD Radeon Graphics (2-core) (Ryzen 7 7800X3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-6700K targets Desktop, Ryzen 7 7800X3D targets Gaming. Direct competitor: Ryzen 7 7800X3D rivals Intel Core i7-14700K.

Feature	Core i7-6700K	Ryzen 7 7800X3D
Integrated GPU	Yes	Yes
IGPU Model	HD Graphics 530	AMD Radeon Graphics (2-core)
Unlocked	Yes	Yes
AVX-512	No	Yes
Virtualization	VT-x, VT-d	AMD-V
Target Use	Desktop	Gaming

💰

Value Analysis

The Core i7-6700K launched at $350 MSRP, while the Ryzen 7 7800X3D debuted at $449. On MSRP ($350 vs $449), the Core i7-6700K is $99 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-6700K delivers 25.5 pts/$ vs 76.4 pts/$ for the Ryzen 7 7800X3D — making the Ryzen 7 7800X3D the 99.8% better value option.