Ultra 7 256V vs i7-7820X

VS

Aggregate performance score

Core i7-7820X
2017
8 cores / 16 threads, 140 Watt
10.81
Core Ultra 7 256V
2024
8 cores / 8 threads, 17 Watt
12.57
+16.3%

Core Ultra 7 256V outperforms Core i7-7820X by a moderate 16% based on our aggregate benchmark results.

Primary details

Comparing Core i7-7820X and Core Ultra 7 256V processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking724618
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.45no data
Market segmentDesktop processorLaptop
SeriesIntel Core i7no data
Power efficiency7.3169.98
Architecture codenameSkylake (server) (2017−2018)Lunar Lake (2024)
Release date30 May 2017 (7 years ago)24 September 2024 (less than a year ago)
Launch price (MSRP)$599no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-7820X and Core Ultra 7 256V 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 cores8 (Octa-Core)8 (Octa-Core)
Threads168
Base clock speed3.6 GHz2.2 GHz
Boost clock speed4.5 GHz4.8 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/s37 MHz
Multiplier36no data
L1 cache512 KB192 KB (per core)
L2 cache8 MB2.5 MB (per core)
L3 cache11 MB (shared)12 MB (shared)
Chip lithography14 nm3 nm
Maximum core temperature99 °C100 °C
Maximum case temperature (TCase)72 °Cno data
64 bit support++
Windows 11 compatibility+no data
Unlocked multiplier+-

Compatibility

Information on Core i7-7820X and Core Ultra 7 256V 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
SocketFCLGA2066Intel BGA 2833
Power consumption (TDP)140 Watt17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7820X and Core Ultra 7 256V. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512no data
AES-NI++
AVX++
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX++
Turbo Boost Max 3.0+no data

Security technologies

Core i7-7820X and Core Ultra 7 256V technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7820X and Core Ultra 7 256V are enumerated here.

VT-d++
VT-x++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7820X and Core Ultra 7 256V. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666DDR5
Maximum memory size128 GBno data
Max memory channels4no data
Maximum memory bandwidth85.33 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AArc 140V

Peripherals

Specifications and connection of peripherals supported by Core i7-7820X and Core Ultra 7 256V.

PCIe version3.05.0
PCI Express lanes284

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.

i7-7820X 10.81
Ultra 7 256V 12.57
+16.3%

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.

i7-7820X 17166
Ultra 7 256V 19971
+16.3%

Gaming performance

Pros & cons summary


Performance score 10.81 12.57
Recency 30 May 2017 24 September 2024
Threads 16 8
Chip lithography 14 nm 3 nm
Power consumption (TDP) 140 Watt 17 Watt

i7-7820X has 100% more threads.

Ultra 7 256V, on the other hand, has a 16.3% higher aggregate performance score, an age advantage of 7 years, a 366.7% more advanced lithography process, and 723.5% lower power consumption.

The Core Ultra 7 256V is our recommended choice as it beats the Core i7-7820X in performance tests.

Note that Core i7-7820X is a desktop processor while Core Ultra 7 256V is a notebook one.


Should you still have questions on choice between Core i7-7820X and Core Ultra 7 256V, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core i7-7820X
Core i7-7820X
Intel Core Ultra 7 256V
Core Ultra 7 256V

Similar processor comparisons

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Community ratings

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


3.8 140 votes

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Questions & comments

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