Buying Guide
The Best Core i7 CPUs for Gaming
We weighed four processors on L3 cache and boost clock; the Core i7-14700KF has the largest L3 cache, and the Core i7-9700K costs the least.
By The PC Journal editorial team
11 min read4 products evaluated
Core i7 and Core Ultra 7 chips balance gaming and work. Every pick is an i7-class chip, ordered from the lowest price.
Rankings weigh L3 cache, max boost and cores / threads as the makers state them; we did not test these processors ourselves, and if a maker skips L3 cache, the guide says so.
Quick Picks
Our 4 recommendations at a glance. Tap a pick for the full verdict.
Lowest Price Here
Intel Core i7-9700K
Undercutting the Core i7-9700 on price when we checked.
Best for: Buyers who would rather put the savings elsewhere in the build.
Our take Check price for Intel Core i7-9700K (opens in a new tab)
Lowest Rated Power
Intel Core i7-9700
The lowest rated power here (65W).
Best for: Buyers who put rated power first.
Our take Check price for Intel Core i7-9700 (opens in a new tab)
Largest Game Cache
Intel Core i7-14700KF
The largest L3 cache here (33MB).
Best for: Games that are limited by the CPU at high frame rates.
Our take Check price for Intel Core i7-14700KF (opens in a new tab)
Premium Pick
Intel Core Ultra 7 265KF
The highest-priced pick here at the time of writing, with 8 performance and 12 efficient cores.
Best for: Buyers who want the most complete package.
Our take Check price for Intel Core Ultra 7 265KF (opens in a new tab)
| Pick | Why it’s here | Best for | Price |
|---|---|---|---|
| Undercutting the Core i7-9700 on price when we checked. | Buyers who would rather put the savings elsewhere in the build. | Check price for Intel Core i7-9700K (opens in a new tab) |
| The lowest rated power here (65W). | Buyers who put rated power first. | Check price for Intel Core i7-9700 (opens in a new tab) |
| The largest L3 cache here (33MB). | Games that are limited by the CPU at high frame rates. | Check price for Intel Core i7-14700KF (opens in a new tab) |
| The highest-priced pick here at the time of writing, with 8 performance and 12 efficient cores. | Buyers who want the most complete package. | Check price for Intel Core Ultra 7 265KF (opens in a new tab) |
Our Picks
Lowest Price Here1 of 4
Intel Core i7-9700K on Amazon (opens in a new tab)
The Core i7-9700K has eight cores without Hyper-Threading and an unlocked multiplier.
Best for
- Buyers who would rather put the savings elsewhere in the build.
Skip if
- Choose another pick if you can't accept this: no cooler in the box.
Why we like it
It is the most common upgrade for a Z370 or Z390 board still running a four- or six-core chip. Its 12MB L3 cache is the smallest in this group; the Core i7-14700KF leads at 33MB. Its 4.9GHz boost clock ranks third of 4 here, behind the Core i7-14700KF (5.6GHz) and ahead of the Core i7-9700 (4.7GHz).
On rated power it sits mid-pack at 95W: the Core i7-9700 offers 65W, and the Core Ultra 7 265KF comes in at 125W. Like the Core i7-9700, it has an LGA1151 socket, while the Core i7-14700KF uses an LGA1700 socket. Like the Core i7-9700, it has DDR4 memory, while the Core i7-14700KF uses DDR4 or DDR5 memory.
It also offers Intel UHD Graphics 630 and DDR4-2666 support up to 64GB. It cost the least of the 4 picks at the time of writing, with the Core i7-9700 the next step up.
Key dimensions & specs
- L3 cache: 12MB
- Max boost: 4.9GHz
- Cores / threads: 8 cores
- Rated power: 95W
- Threads: 8
- Socket: LGA1151
- Memory: DDR4
- Cooler in box: No
- Integrated graphics: Yes
Pros
- Integrated graphics for display output without a graphics card
- 8 cores without Hyper-Threading
- Unlocked multiplier
- Intel UHD Graphics 630
Cons
- No cooler in the box
- L3 cache trails the Core i7-14700KF (33MB)
Lowest Rated Power2 of 4
Intel Core i7-9700 on Amazon (opens in a new tab)
The Core i7-9700 is the locked, 65W version of the 9700K.
Best for
- Buyers who put rated power first.
Skip if
- Its L3 cache is not published, which rules it out if you need that number.
Why we like it
It suits B365 and H370 boards that cannot overclock anyway, and the maker notes that some boards need a BIOS update first. On boost clock it trails the group at 4.7GHz, while the Core i7-14700KF offers 5.6GHz. It matches the Core i7-9700K on core count (8 cores).
On rated power it leads this guide at 65W, ahead of the Core i7-9700K (95W). It shares an LGA1151 socket with the Core i7-9700K; the Core Ultra 7 265KF goes with an LGA1851 socket. You also get 8 cores at a 65W rating.
It fits only LGA1151 boards with an Intel 300-series chipset and DDR4; 100- and 200-series LGA1151 boards do not support it, and some 300-series boards need a BIOS update first. On price it sat second of 4, between the cheaper Core i7-9700K and the pricier Core i7-14700KF, at the time of writing. The maker doesn't give its L3 cache; if that figure matters, the Core i7-14700KF offers 33MB.
Key dimensions & specs
- Max boost: 4.7GHz
- Cores / threads: 8 cores
- Rated power: 65W
- Threads: 8
- Socket: LGA1151
- Memory: DDR4
Pros
- 65W rating suits a modest air cooler
- 8 cores at a 65W rating
- Listing note that some boards need a BIOS update first
- The lowest rated power here (65W)
Cons
- No published L3 cache
- Boost clock trails the Core i7-14700KF (5.6GHz)
- Core count trails the Core i7-14700KF (20 cores)
Largest Game Cache3 of 4
Intel Core i7-14700KF on Amazon (opens in a new tab)
The Core i7-14700KF is the 14700K without integrated graphics.
Best for
- Games that are limited by the CPU at high frame rates.
Skip if
- Pass on it if no cooler in the bo rules it out for your setup.
Why we like it
It suits a gaming PC that already has a graphics card. Its 33MB L3 cache is the largest here; the Core Ultra 7 265KF comes next at 30MB. On boost clock it leads this guide at 5.6GHz, ahead of the Core Ultra 7 265KF (5.5GHz).
On core count it ties with the Core Ultra 7 265KF at 20 cores. No other pick in this guide offers an LGA1700 socket; compare the Core i7-9700, which has an LGA1151 socket. It is the only pick here with DDR4 or DDR5 memory; the Core Ultra 7 265KF has DDR5 memory instead.
You also get 8 performance and 12 efficient cores and an unlocked multiplier. It was priced above the Core i7-9700 and below the Core Ultra 7 265KF at the time of writing. What it gives up: no integrated graphics, unlike the Core i7-9700K; by contrast, the Core i7-9700K has it.
Key dimensions & specs
- L3 cache: 33MB
- Max boost: 5.6GHz
- Cores / threads: 20 cores
- Rated power: 125W
- Threads: 28
- Socket: LGA1700
- Memory: DDR4 or DDR5
- Cooler in box: No
- Integrated graphics: No
Pros
- 5.6GHz maximum boost
- 20 cores for encoding and background work
- 8 performance and 12 efficient cores
- Unlocked multiplier
Cons
- No cooler in the box
- No integrated graphics, so a graphics card is required
- Costs more than the Core i7-9700K at the time of writing
Premium Pick4 of 4
Intel Core Ultra 7 265KF on Amazon (opens in a new tab)
The Core Ultra 7 265KF is the 265K without integrated graphics.
Best for
- Buyers who want the most complete package.
Skip if
- Look at the others if this bothers you: no cooler in the box.
Why we like it
It costs less and needs a graphics card for any display output. Its 30MB L3 cache ranks second of 3 here, behind the Core i7-14700KF (33MB) and ahead of the Core i7-9700K (12MB). Its 5.5GHz boost clock ranks second of 4 here, behind the Core i7-14700KF (5.6GHz) and ahead of the Core i7-9700 (4.7GHz).
On core count it ties with the Core i7-14700KF at 20 cores. On rated power it ties with the Core i7-14700KF at 125W. It is the only pick here with an LGA1851 socket; the Core i7-14700KF has an LGA1700 socket instead.
No other pick in this guide offers DDR5 memory; compare the Core i7-9700K, which has DDR4 memory. It also comes with 8 performance and 12 efficient cores and an unlocked multiplier. At our last price check it topped the group, with the Core i7-14700KF the nearest cheaper option. Rated power is its weakest area, and the Core i7-9700 covers it better at 65W.
Key dimensions & specs
- L3 cache: 30MB
- Max boost: 5.5GHz
- Cores / threads: 20 cores
- Rated power: 125W
- Threads: 20
- Socket: LGA1851
- Memory: DDR5
- Cooler in box: No
- Integrated graphics: No
Pros
- 5.5GHz maximum boost
- 20 cores for encoding and background work
- 8 performance and 12 efficient cores
- Unlocked multiplier
Cons
- No cooler in the box
- No integrated graphics, so a graphics card is required
- Rated power trails the Core i7-9700 (65W)
How We Chose
Each pick was assessed across 4 criteria weighted for real-world use.
- What we compared
- We compared four processors on L3 cache, boost clock, core count and rated power as the makers state them. We did not test them in-house.
- What every pick has in common
- All 4, from the Core i7-9700K to the Core Ultra 7 265KF, state boost clock, core count and rated power.
- Where the specs have gaps
- The Core i7-9700 gives no L3 cache; the Core i7-9700 gives no cooler in box.
- Price range
- From the Core i7-9700K to the Core Ultra 7 265KF, all sat in the $250 to $500 tier when we checked.
What to Look for in a Core i7 CPUs for Gaming
Key buying criteria so you get the right fit the first time.
Boost clock
Here boost clock runs from 4.7GHz on the Core i7-9700 to 5.6GHz on the Core i7-14700KF. Start with the Core i7-14700KF if boost clock decides it.
Core count across these picks
Here core count runs from 8 cores on the Core i7-9700 to 20 cores on the Core i7-14700KF. The Core i7-14700KF is the pick for core count.
How much rated power you need
Here rated power runs from 125W on the Core Ultra 7 265KF to 65W on the Core i7-9700. The Core i7-9700K comes second for less money.
Memory
The Core i7-9700K and the Core i7-9700 list DDR4; the Core i7-14700KF lists DDR4 or DDR5; the Core Ultra 7 265KF lists DDR5. Settle this first, then compare prices.
Cooler in box
The Core i7-9700K, the Core i7-14700KF and the Core Ultra 7 265KF go without.
Integrated graphics are a useful backup
Chips with integrated graphics can drive a display without a graphics card, which helps when troubleshooting or between upgrades. Intel's F and KF models and most AM4 Ryzen chips have none.
How to Choose a Core i7 CPUs for Gaming
By priority
| Priority | Consider | Why |
|---|---|---|
| Buyers who would rather put the savings elsewhere in the build | Core i7-9700K | Undercutting the Core i7-9700 on price when we checked |
| Buyers who put rated power first | Core i7-9700 | The lowest rated power here (65W) |
| Games that are limited by the CPU at high frame rates | Core i7-14700KF | The largest L3 cache here (33MB) |
| Buyers who want the most complete package | Core Ultra 7 265KF | The highest-priced pick here at the time of writing, with 8 performance and 12 efficient cores |
Scroll sideways to see every column.
Key specs side by side
The Core i7-14700KF leads on boost clock at 5.6GHz, ahead of the Core Ultra 7 265KF at 5.5GHz. "Not listed" means the maker leaves that figure out.
| Processor | L3 cache | Max boost | Cores / threads | Rated power |
|---|---|---|---|---|
| Core i7-9700K | 12MB | 4.9GHz | 8 cores | 95W |
| Core i7-9700 | Not listed | 4.7GHz | 8 cores | 65W |
| Core i7-14700KF | 33MB | 5.6GHz | 20 cores | 125W |
| Core Ultra 7 265KF | 30MB | 5.5GHz | 20 cores | 125W |
Scroll sideways to see every column.
Frequently Asked Questions
Is the Core i7-14700KF ahead of the Core Ultra 7 265KF on boost clock?
The Core i7-14700KF leads at 5.6GHz, with the Core Ultra 7 265KF at 5.5GHz. The Core i7-9700 is at the other end of this group with 4.7GHz.
How does the Core i7-9700K compare with the Core i7-9700 on rated power?
The Core i7-9700 comes out best at 65W, with the Core i7-9700K at 95W. The Core Ultra 7 265KF is at the other end of this group with 125W.
How does the Core Ultra 7 265KF compare with the Core i7-14700KF on L3 cache?
The Core i7-14700KF leads at 33MB, with the Core Ultra 7 265KF at 30MB. The Core i7-9700K is at the other end of this group with 12MB. The Core i7-9700 doesn't state a figure, so it sits outside this comparison.
What does the Core Ultra 7 265KF add over the Core i7-9700K?
On paper it adds boost clock (5.5GHz against 4.9GHz), core count (20 cores against 8 cores) and L3 cache (30MB against 12MB). It does not win everywhere: the Core i7-9700K still leads on rated power (95W). The Core i7-9700K was the lowest-priced pick when we checked, so pay the difference only if those gains matter to you.
Why is the Core i7-14700KF our Largest Game Cache pick?
It earns the label for the largest L3 cache here (33MB). It suits games that are limited by the CPU at high frame rates.
Do the Core i7-9700K and the Core i7-14700KF differ on socket?
The Core i7-9700K and the Core i7-9700 use LGA1151; the Core i7-14700KF uses LGA1700; the Core Ultra 7 265KF uses LGA1851.
Bottom Line
Our first pick is the Core i7-9700K, chosen for undercutting the Core i7-9700 on price when we checked. Look at the Core i7-9700 for the lowest rated power here (65W) and the Core Ultra 7 265KF for the highest-priced pick here at the time of writing, with 8 performance and 12 efficient cores if those matter more to you.
LGA1700 and LGA1851 need different boards.