i5-7640X vs i7-7800X

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Aggregate performance score

Core i7-7800X
2017
6 cores / 12 threads, 140 Watt
8.11
+83.1%
Core i5-7640X
2017
4 cores / 4 threads, 112 Watt
4.43

Core i7-7800X outperforms Core i5-7640X by an impressive 83% based on our aggregate benchmark results.

Primary details

Comparing Core i7-7800X and Core i5-7640X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking9351338
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.311.98
Market segmentDesktop processorDesktop processor
SeriesIntel Core i7Intel Core i5
Power efficiency5.483.74
Architecture codenameSkylake (server) (2017−2018)Kaby Lake-X (2017)
Release date26 June 2017 (7 years ago)26 June 2017 (7 years ago)
Launch price (MSRP)$383$242

Cost-effectiveness evaluation

Performance per price, higher is better.

i7-7800X has 67% better value for money than i5-7640X.

Detailed specifications

Core i7-7800X and Core i5-7640X basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores6 (Hexa-Core)4 (Quad-Core)
Threads124
Base clock speed3.5 GHz4 GHz
Boost clock speed4 GHz4.2 GHz
Bus typeDMI 3.0DMI 3.0
Bus rate4 × 8 GT/s4 × 8 GT/s
Multiplier3540
L1 cache64 KB (per core)64K (per core)
L2 cache1 MB (per core)256K (per core)
L3 cache8.25 MB (shared)6 MB (shared)
Chip lithography14 nm14 nm
Maximum core temperature100 °C100 °C
Maximum case temperature (TCase)72 °C72 °C
64 bit support++
Windows 11 compatibility+-
Unlocked multiplier++

Compatibility

Information on Core i7-7800X and Core i5-7640X compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1 (Uniprocessor)1 (Uniprocessor)
SocketFCLGA2066FCLGA2066
Power consumption (TDP)140 Watt112 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7800X and Core i5-7640X. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.02.0
Hyper-Threading Technology+no data
TSX++

Security technologies

Core i7-7800X and Core i5-7640X technologies aimed at improving security, for example, by protecting against hacks.

EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7800X and Core i5-7640X are enumerated here.

VT-d++
VT-x++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7800X and Core i5-7640X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2400DDR4-2666
Maximum memory size128 GB64 GB
Max memory channels42
Maximum memory bandwidth85.33 GB/s42.671 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AHD 630

Peripherals

Specifications and connection of peripherals supported by Core i7-7800X and Core i5-7640X.

PCIe version3.03.0
PCI Express lanes2816

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i7-7800X 8.11
+83.1%
i5-7640X 4.43

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i7-7800X 12883
+83.1%
i5-7640X 7036

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i7-7800X 1357
i5-7640X 1777
+31%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i7-7800X 6138
+15.8%
i5-7640X 5301

Gaming performance

Pros & cons summary


Performance score 8.11 4.43
Physical cores 6 4
Threads 12 4
Power consumption (TDP) 140 Watt 112 Watt

i7-7800X has a 83.1% higher aggregate performance score, and 50% more physical cores and 200% more threads.

i5-7640X, on the other hand, has 25% lower power consumption.

The Core i7-7800X is our recommended choice as it beats the Core i5-7640X in performance tests.


Should you still have questions on choice between Core i7-7800X and Core i5-7640X, ask them in Comments section, and we shall answer.

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Intel Core i7-7800X
Core i7-7800X
Intel Core i5-7640X
Core i5-7640X

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


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Questions & comments

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