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 i7-9700K

2018

Why buy it

✅Costs $1,014 less on MSRP ($385 MSRP vs $1,399 MSRP).
✅Delivers 105.5% more PassMark for each dollar spent, at 37.4 vs 18.2 PassMark/$ ($385 MSRP vs $1,399 MSRP).
✅Draws 95W instead of 165W, a 70W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 630, while Core i9-7940X needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i9-7940X across 4 shared CPU benchmark tests.
❌Lower PassMark (14,397 vs 25,452).
❌Smaller total L3 cache (12 MB vs 19 MB).

Core i9-7940X

2017

Why buy it

✅Better for gaming: +18.4% higher average FPS across 4 shared CPU benchmark tests.
✅+60.4% larger total L3 cache (19 MB vs 12 MB).

Trade-offs

❌Lower PassMark per dollar, at 18.2 vs 37.4 PassMark/$ ($1,399 MSRP vs $385 MSRP).
❌73.7% higher power demand at 165W vs 95W.
❌No integrated graphics, while Core i7-9700K can still boot and troubleshoot without a discrete GPU.

Core i7-9700K

2018

Core i9-7940X

2017

Why buy it

✅Costs $1,014 less on MSRP ($385 MSRP vs $1,399 MSRP).
✅Delivers 105.5% more PassMark for each dollar spent, at 37.4 vs 18.2 PassMark/$ ($385 MSRP vs $1,399 MSRP).
✅Draws 95W instead of 165W, a 70W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 630, while Core i9-7940X needs a discrete GPU.

Why buy it

✅Better for gaming: +18.4% higher average FPS across 4 shared CPU benchmark tests.
✅+60.4% larger total L3 cache (19 MB vs 12 MB).

Trade-offs

❌Worse for gaming: lower average FPS than Core i9-7940X across 4 shared CPU benchmark tests.
❌Lower PassMark (14,397 vs 25,452).
❌Smaller total L3 cache (12 MB vs 19 MB).

Trade-offs

❌Lower PassMark per dollar, at 18.2 vs 37.4 PassMark/$ ($1,399 MSRP vs $385 MSRP).
❌73.7% higher power demand at 165W vs 95W.
❌No integrated graphics, while Core i7-9700K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i9-7940X better than Core i7-9700K?

Yes. Core i9-7940X is the better overall CPU here. You are getting a 18.4% average FPS lead across 4 shared CPU game tests in our data and 76.8% better PassMark, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Core i9-7940X is the better pick here. According to our tests, it delivers 18.4% more average FPS across 4 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core i9-7940X is the better fit. You are getting 76.8% better PassMark, backed by 14 cores and 28 threads. It also carries the larger cache pool with 60.4% larger total L3 cache (19 MB vs 12 MB).

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

Core i9-7940X is the smarter buy by a wide margin for a fresh build. Core i9-7940X is 263.4% more expensive on MSRP at $1,399 MSRP versus $385 MSRP, and it gives you a 18.4% average FPS lead across 4 shared CPU game tests in our data. Core i7-9700K only looks stronger on raw value math because it is extremely cheap, but that is mostly used-market pricing on an obsolete 2018 platform. Even with 105.5% better value on paper (37.4 vs 18.2 PassMark/$), it really only makes sense as a very cheap stopgap or a niche existing-platform option for someone already on LGA1151.

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

Core i7-9700K is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2017). That makes it the safer long-term pick.

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 i7-9700K Benchmark Check

Core i9-7940X Benchmark Check

Path of Exile 2

Preset	Core i7-9700K	Core i9-7940X
1080p
low	308 FPS	168 FPS
medium	278 FPS	148 FPS
high	231 FPS	116 FPS
ultra	182 FPS	97 FPS
1440p
low	270 FPS	141 FPS
medium	221 FPS	121 FPS
high	178 FPS	95 FPS
ultra	143 FPS	80 FPS
4K
low	170 FPS	79 FPS
medium	140 FPS	73 FPS
high	108 FPS	57 FPS
ultra	95 FPS	44 FPS

Open Core i7-9700K Open Core i9-7940X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-9700K	Core i9-7940X
1080p
low	360 FPS	446 FPS
medium	321 FPS	384 FPS
high	291 FPS	331 FPS
ultra	259 FPS	303 FPS
1440p
low	324 FPS	391 FPS
medium	282 FPS	344 FPS
high	258 FPS	298 FPS
ultra	225 FPS	261 FPS
4K
low	249 FPS	250 FPS
medium	221 FPS	219 FPS
high	208 FPS	205 FPS
ultra	179 FPS	179 FPS

Open Core i7-9700K Open Core i9-7940X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-9700K	Core i9-7940X
1080p
low	360 FPS	534 FPS
medium	360 FPS	451 FPS
high	360 FPS	409 FPS
ultra	360 FPS	365 FPS
1440p
low	360 FPS	485 FPS
medium	360 FPS	415 FPS
high	360 FPS	374 FPS
ultra	360 FPS	334 FPS
4K
low	360 FPS	379 FPS
medium	360 FPS	319 FPS
high	360 FPS	283 FPS
ultra	318 FPS	233 FPS

Open Core i7-9700K Open Core i9-7940X

League of Legends

League of Legends

Valorant

Preset	Core i7-9700K	Core i9-7940X
1080p
low	360 FPS	636 FPS
medium	360 FPS	636 FPS
high	360 FPS	636 FPS
ultra	360 FPS	610 FPS
1440p
low	360 FPS	636 FPS
medium	360 FPS	636 FPS
high	360 FPS	573 FPS
ultra	360 FPS	500 FPS
4K
low	360 FPS	524 FPS
medium	360 FPS	475 FPS
high	360 FPS	418 FPS
ultra	360 FPS	364 FPS

Open Core i7-9700K Open Core i9-7940X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-9700K and Core i9-7940X

Core i7-9700K

The Core i7-9700K is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.9 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR4. Passmark benchmark score: 14,397 points. Launch price was $374.

Core i9-7940X

The Core i9-7940X is manufactured by Intel. It was released in 1 September 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 14 cores and 28 threads. Base frequency is 3.1 GHz, with boost up to 4.4 GHz. L3 cache: 19.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2666. Passmark benchmark score: 25,452 points. Launch price was $1,399.

⚡

Processing Power

The Core i7-9700K packs 8 cores / 8 threads, while the Core i9-7940X offers 14 cores / 28 threads — the Core i9-7940X has 6 more cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 4.4 GHz on the Core i9-7940X — a 10.8% clock advantage for the Core i7-9700K (base: 3.6 GHz vs 3.1 GHz). The Core i7-9700K uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the Core i9-7940X uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i7-9700K scores 14,397 against the Core i9-7940X's 25,452 — a 55.5% lead for the Core i9-7940X. L3 cache: 12 MB (total) on the Core i7-9700K vs 19.25 MB (total) on the Core i9-7940X.

Feature	Core i7-9700K	Core i9-7940X
Cores / Threads	8 / 8	14 / 28+75%
Boost Clock	4.9 GHz+11%	4.4 GHz
Base Clock	3.6 GHz+16%	3.1 GHz
L3 Cache	12 MB (total)	19.25 MB (total)+60%
L2 Cache	256K (per core)	1 MB (per core)+300%
Process	14 nm	14 nm
Architecture	Coffee Lake-R (2018−2019)	Skylake (server) (2017−2018)
PassMark	14,397	25,452+77%

🧠

Memory & Platform

The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the Core i9-7940X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i7-9700K	Core i9-7940X
Socket	LGA1151	LGA2066
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2666	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

🔧

Advanced Features

Virtualization: VT-x, VT-d (Core i7-9700K) / not specified (Core i9-7940X). The Core i7-9700K includes integrated graphics (UHD Graphics 630), while the Core i9-7940X requires a dedicated GPU. Primary use case: Core i7-9700K targets Desktop.

Feature	Core i7-9700K	Core i9-7940X
Integrated GPU	Yes	—
IGPU Model	UHD Graphics 630	—
Unlocked	Yes	—
AVX-512	No	—
Virtualization	VT-x, VT-d	—
Target Use	Desktop	—

💰

Value Analysis

The Core i7-9700K launched at $385 MSRP, while the Core i9-7940X debuted at $1399. On MSRP ($385 vs $1399), the Core i7-9700K is $1014 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-9700K delivers 37.4 pts/$ vs 18.2 pts/$ for the Core i9-7940X — making the Core i7-9700K the 69.1% better value option.