Intel Core i7-8700K vs AMD Ryzen 9 7900X

Compare Intel 8th Generation Core i7 6 core CPU vs AMD Ryzen 9 Desktop 12 core processor, specs and benchmark score. Which is the better CPU for gaming?

CPU Comparison

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Price

The cheapest price from our partner retailers

$ 194.00
$ 120.49 significantly less expensive
$ 314.49

Benchmark Score

Overall Score

A combined score of all workloads

5130 points
13554 points
164% significantly better overall score

Gaming Score

The raw gaming performance with a fast GPU

7103 points
13457 points
89% significantly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

4499 points
13583 points
201% significantly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

4352 points
13587 points
212% significantly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i7-8700K and the Ryzen 9 7900X? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

5074 points
12798 points
152% significantly higher 3DMark Physics score
Blender score

Blender score

Cycles Render (Samples per minute)

126.15 points
412.82 points
227% significantly higher Blender score
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

6462 points
17426 points
169% significantly higher Geekbench 5 (multi) score
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

1549 points
2844 points
83% significantly higher Geekbench 5 (single) score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

6565 points
17750 points
170% significantly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1621 points
2946 points
81% significantly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

6
12
100% significantly more cores

Threads

Number of logical processing units

12
24
100% significantly more threads

Clock Speed

Base frequency at which the chip operates

3.7 GHz
4.7 GHz
27% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4.7 GHz
5.6 GHz
19% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

95 W
78% significantly lower TDP
170 W

PCIe Lanes

Number of physical connections between the CPU and expansion slots

16
24
49% significantly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

Supported Memory

Maximum amount of RAM supported by this CPU

128 GiB
Identical
128 GiB

L1 Cache

Smallest embedded memory, but the fastest

384 KiB
768 KiB
100% significantly more L1 cache

L2 Cache

Secondary embedded memory, slower than L1 cache

1.5 MiB
12 MiB
700% significantly more L2 cache

L3 Cache

General memory pool for all cores

12 MiB
64 MiB
433% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

335th of 1,089
36th of 1,089

Family

The product line

8th Generation Core i7
Ryzen 9 Desktop

Release date

The official date of release of this chip

2017 November
2022 September

Memory Type

The type of memory used by this chip

DDR4-2666
DDR5

Is Unlocked

Can this CPU can be overclocked

Yes
Yes

Supports ECC memory

Does this CPU support error correcting memory

No
Yes

Core i7-8700K vs Ryzen 9 7900X comparison

Our benchmark analysis concludes that the Ryzen 9 7900X performs better than the Core i7-8700K. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-8700K in all gaming tests too.

With info from our database, we find that the Ryzen 9 7900X has significantly more cores with 12 cores whereas the Core i7-8700K has 6 cores. It also has more threads than the Core i7-8700K. With our hardware info, we find that the Ryzen 9 7900X has a slightly higher clock speed than the Core i7-8700K. Also, the Ryzen 9 7900X has a slightly higher turbo speed. A Core i7-8700K CPU outputs less heat than a Ryzen 9 7900X CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The info from our database shows that the Ryzen 9 7900X has more L2 cache than the Core i7-8700K. The Ryzen 9 7900X also has significantly more L3 cache.

Modern CPUs generally have more logical cores than physical cores, this means that each core is split into multiple virtual cores, improving efficiency for parallel workloads. Indeed, the Core i7-8700K has more threads than cores. Each physical core is split into multiple threads.

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