Core i7-12700K vs Ryzen 7 7840U

Intel

Core i7-12700K

12 Cores20 Thrd125 WWMax: 5 GHz2021

Popular choices:

VS
AMD

Ryzen 7 7840U

8 Cores16 Thrd28 WWMax: 5.1 GHz2023

Popular choices:

i7-12700K

Performance Spectrum - CPU

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.

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 i7-12700K

2021

Why buy it

  • +39.9% higher PassMark.
  • +56.3% larger total L3 cache (25 MB vs 16 MB).
  • Delivers 36.8% more PassMark for each dollar spent, at 84.0 vs 61.4 PassMark/$ ($409 MSRP vs $400 MSRP).
  • 100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
  • Integrated graphics onboard with Intel UHD Graphics 770, while Ryzen 7 7840U needs a discrete GPU.

Trade-offs

  • 2.3% HIGHER MSRP
    $409 MSRPvs$400 MSRP
  • 346.4% higher power demand at 125W vs 28W.

Ryzen 7 7840U

2023

Why buy it

  • Costs $9 less on MSRP ($400 MSRP vs $409 MSRP).
  • Draws 28W instead of 125W, a 97W reduction.

Trade-offs

  • Lower PassMark (24,547 vs 34,347).
  • Smaller total L3 cache (16 MB vs 25 MB).
  • Lower PassMark per dollar, at 61.4 vs 84.0 PassMark/$ ($400 MSRP vs $409 MSRP).
  • No integrated graphics, while Core i7-12700K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 7 7840U better than Core i7-12700K?
It depends on what matters more to you. For gaming, Ryzen 7 7840U is ahead with a 1.5% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i7-12700K pulls ahead with 39.9% better PassMark. Core i7-12700K also has the bigger cache pool with 56.3% larger total L3 cache (25 MB vs 16 MB).
Which one is better for streaming, content creation, and heavy multitasking?
For streaming, content creation, and heavier multitasking, Core i7-12700K is the better fit. You are getting 39.9% better PassMark, backed by 12 cores and 20 threads. It also carries the larger cache pool with 56.3% larger total L3 cache (25 MB vs 16 MB).
Which one is the smarter buy today, not just the cheaper CPU?
Ryzen 7 7840U is still the faster CPU overall, but Core i7-12700K makes more sense if price matters more than absolute performance. Ryzen 7 7840U is $9 cheaper on MSRP at $400 MSRP versus $409 MSRP, and it gives you a 1.5% average FPS lead across 50 shared CPU game tests in our data. The trade-off is that Core i7-12700K is still stronger for heavier multi-core work with 39.9% better PassMark. Core i7-12700K is also 36.8% better value on MSRP (84.0 vs 61.4 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.
Which one is more future-proof for 2026 and beyond?
Ryzen 7 7840U is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021). 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.

Path of Exile 2

Path of Exile 2

PresetCore i7-12700KRyzen 7 7840U
1080p
low314 FPS257 FPS
medium295 FPS237 FPS
high246 FPS200 FPS
ultra193 FPS173 FPS
1440p
low269 FPS228 FPS
medium225 FPS191 FPS
high182 FPS155 FPS
ultra145 FPS138 FPS
4K
low170 FPS159 FPS
medium142 FPS134 FPS
high109 FPS104 FPS
ultra96 FPS92 FPS
Counter-Strike 2

Counter-Strike 2

PresetCore i7-12700KRyzen 7 7840U
1080p
low630 FPS477 FPS
medium533 FPS395 FPS
high450 FPS342 FPS
ultra410 FPS306 FPS
1440p
low536 FPS417 FPS
medium475 FPS364 FPS
high403 FPS315 FPS
ultra349 FPS270 FPS
4K
low312 FPS275 FPS
medium280 FPS251 FPS
high266 FPS238 FPS
ultra234 FPS206 FPS
League of Legends

League of Legends

PresetCore i7-12700KRyzen 7 7840U
1080p
low797 FPS614 FPS
medium633 FPS614 FPS
high556 FPS614 FPS
ultra472 FPS595 FPS
1440p
low704 FPS614 FPS
medium565 FPS614 FPS
high490 FPS526 FPS
ultra422 FPS452 FPS
4K
low510 FPS525 FPS
medium425 FPS459 FPS
high381 FPS407 FPS
ultra321 FPS345 FPS
Valorant

Valorant

PresetCore i7-12700KRyzen 7 7840U
1080p
low859 FPS614 FPS
medium802 FPS614 FPS
high699 FPS614 FPS
ultra628 FPS614 FPS
1440p
low760 FPS614 FPS
medium678 FPS614 FPS
high590 FPS614 FPS
ultra519 FPS549 FPS
4K
low535 FPS560 FPS
medium488 FPS502 FPS
high437 FPS447 FPS
ultra384 FPS384 FPS

Technical Specifications

Side-by-side comparison of Core i7-12700K and Ryzen 7 7840U

Intel

Core i7-12700K

The Core i7-12700K is manufactured by Intel. It was released in 4 November 2021 (4 years ago). It is based on the Alder Lake, Golden Cove, Gracemont (2021) architecture. It features 12 cores and 20 threads. Base frequency is 3.6 GHz, with boost up to 5 GHz. L3 cache: 25 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm process technology. Socket: LGA1700. Thermal design power (TDP): 125 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 34,347 points. Launch price was $409.

AMD

Ryzen 7 7840U

The Ryzen 7 7840U is manufactured by AMD. It was released in Maio 2023 (2 years ago). It is based on the Phoenix-U (Zen 4) (2023) architecture. It features 8 cores and 16 threads. Base frequency is 3.3 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 28 Watt. Memory support: DDR5-5600. Passmark benchmark score: 24,547 points. Launch price was $299.

Processing Power

The Core i7-12700K packs 12 cores / 20 threads, while the Ryzen 7 7840U offers 8 cores / 16 threads — the Core i7-12700K has 4 more cores. Boost clocks reach 5 GHz on the Core i7-12700K versus 5.1 GHz on the Ryzen 7 7840U — a 2% clock advantage for the Ryzen 7 7840U (base: 3.6 GHz vs 3.3 GHz). The Core i7-12700K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the Ryzen 7 7840U uses Phoenix-U (Zen 4) (2023) (4 nm). In PassMark, the Core i7-12700K scores 34,347 against the Ryzen 7 7840U's 24,547 — a 33.3% lead for the Core i7-12700K. L3 cache: 25 MB (total) on the Core i7-12700K vs 16 MB (total) on the Ryzen 7 7840U.

FeatureCore i7-12700KRyzen 7 7840U
Cores / Threads
12 / 20+50%
8 / 16
Boost Clock
5 GHz
5.1 GHz+2%
Base Clock
3.6 GHz+9%
3.3 GHz
L3 Cache
25 MB (total)+56%
16 MB (total)
L2 Cache
1.25 MB (per core)+25%
1 MB (per core)
Process
10 nm
4 nm-60%
Architecture
Alder Lake, Golden Cove, Gracemont (2021)
Phoenix-U (Zen 4) (2023)
PassMark
34,347+40%
24,547
🧠

Memory & Platform

The Core i7-12700K uses the LGA1700 socket (PCIe 5.0), while the Ryzen 7 7840U uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard.

FeatureCore i7-12700KRyzen 7 7840U
Socket
LGA1700
FP8
PCIe Generation
PCIe 5.0+25%
PCIe 4.0
Max RAM Speed
4800
Max RAM Capacity
128
RAM Channels
2
ECC Support
Yes
PCIe Lanes
20
🔧

Advanced Features

Virtualization: VT-x, VT-d (Core i7-12700K) / not specified (Ryzen 7 7840U). The Core i7-12700K includes integrated graphics (Intel UHD Graphics 770), while the Ryzen 7 7840U requires a dedicated GPU. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X.

FeatureCore i7-12700KRyzen 7 7840U
Integrated GPU
Yes
IGPU Model
Intel UHD Graphics 770
Unlocked
Yes
AVX-512
No
Virtualization
VT-x, VT-d
💰

Value Analysis

The Core i7-12700K launched at $409 MSRP, while the Ryzen 7 7840U debuted at $400. On MSRP ($409 vs $400), the Ryzen 7 7840U is $9 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-12700K delivers 84.0 pts/$ vs 61.4 pts/$ for the Ryzen 7 7840U — making the Core i7-12700K the 31.1% better value option.

FeatureCore i7-12700KRyzen 7 7840U
MSRP
$409
$400-2%
Performance per Dollar
84.0+37%
61.4
Release Date
2021
2023