Intel Core i7-7820X vs Core i9-9900

Intel Core i7-7820X
Intel Core i9-9900

General info

Comparing Core i7-7820X and Core i9-9900 processor market type (desktop or notebook), architecture and sales start time and price.
Place in performance rating
 
Value for money (0-100)
11.07
 
12.39
Type
Desktop
 
Desktop
Series
Intel Core i7
 
Intel Core i9
Achitecture codename
Skylake (server)
 
Coffee Lake
Release date
30 May 2017
 
23 April 2019
Launch price (MSRP)
$599
 
$439
Price now
$500
 
$440

Technical specs

Core i7-7820X and Core i9-9900 quantitative parameters such as cores and threads number, clocks, manufacturing process, cache size and multiplier lock state. These parameters indirectly say of Core i7-7820X and Core i9-9900 performance, but for precise assessment you have to consider their test results.
Number of cores
8
 
8
Number of threads
16
 
16
Maximum frequency
3.6 GHz
 
5 GHz
Bus support
4 × 8 GT / s
 
4 × 8 GT / s
L1 cache
512 KB
 
512 KB
L2 cache
8 MB
 
256K (per core)
L3 cache
11 MB (shared)
 
16 MB (shared)
Manufacturing process technology
14 nm
 
14 nm
Maximum core temperature
n/d
 
100 °C
Maximum case temperature (TCase)
72 °C
 
72 °C
64 bit support
+
 
+
Unlocked
+
 
-

Compatibility

Information on Core i7-7820X and Core i9-9900 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one.
Max number of CPUs in a configuration
1 (Uniprocessor)
 
1
Socket
2066
 
FCLGA1151
Power consumption (TDP)
140 Watt
 
65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7820X and Core i9-9900. You'll probably need this information if you require some particular technology.
Instruction set extensions
n/d
 
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI
+
 
+
AVX
+
 
+
vPro
n/d
 
+
Enhanced SpeedStep (EIST)
n/d
 
+
Turbo Boost
n/d
 
2.0
Hyper-Threading
n/d
 
+
TSX
-
 
+
Idle States
n/d
 
+
Thermal Monitoring
-
 
+
SIPP
-
 
+

Security technologies

Core i7-7820X and Core i9-9900 technologies aimed at raising security, for example, by protecting against hacks.
TXT
n/d
 
+
EDB
n/d
 
+
Secure Key
n/d
 
+
MPX
-
 
+
Identity Protection
-
 
+
SGX
n/d
 
Yes with Intel® ME
OS Guard
n/d
 
+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7820X and Core i9-9900 are enumerated here.
VT-d
+
 
+
VT-x
+
 
+
EPT
n/d
 
+

Memory specs

Types, maximum amount and channel number of RAM supported by Core i7-7820X and Core i9-9900.
Supported memory types
DDR4-2666
 
DDR4-2666
Maximum memory size
128 GB
 
128 GB
Max memory channels
4
 
2
Maximum memory bandwidth
79.47 GB / s
 
41.6 GB / s

Graphics specifications

General parameters of GPUs integrated into Core i7-7820X and Core i9-9900.
Integrated graphics
-
 
Max video memory
-
 
64 GB
Quick Sync
-
 
+
Clear Video
-
 
+
Clear Video HD
-
 
+
Graphics max frequency
-
 
1.2 GHz
InTru 3D
-
 
+

Graphics interfaces

Available interfaces and connections of Core i7-7820X and Core i9-9900 integrated GPUs.
Number of displays supported
-
 
3

Graphics image quality

Maximum display resolutions supported by Core i7-7820X and Core i9-9900 integrated GPUs, including resolutions over different interfaces.
4K resolution support
-
 
+
Max resolution over HDMI 1.4
-
 
4096x2304@24Hz
Max resolution over eDP
-
 
4096x2304@60Hz
Max resolution over DisplayPort
-
 
4096x2304@60Hz

Graphics API support

APIs supported by Core i7-7820X and Core i9-9900 integrated GPUs, sometimes API versions are included.
DirectX
-
 
12
OpenGL
-
 
4.5

Peripherals

Specifications and connection of peripherals supported by Core i7-7820X and Core i9-9900.
PCIe revision
n/d
 
3.0
Max number of PCIe lanes
n/d
 
16

Benchmark performance

Non-gaming benchmarks performance of Core i7-7820X and Core i9-9900. Overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance

i7-7820X 39.10 +1.5%
i9-9900 38.52

Passmark

i7-7820X 18522 +1.5%
i9-9900 18246

Gaming performance

Let's see how good Core i7-7820X and Core i9-9900 are for gaming compared with game system requirements. Remember that sometimes official requirements may reflect real performance inaccurately.

Advantages of Intel Core i7-7820X

1.5% faster in synthetic tests
Unlocked

Advantages of Intel Core i9-9900

Much newer (23 April 2019 vs 30 May 2017)
Cheaper ($439 vs $599)
Less power hungry (65 vs 140 watts)
TXT (Trusted Execution Technology - protects the system against viruses and rootkits residing in BIOS or in a boot sector)
vPro (a marketing umbrella term for several Intel technologies: AMT, TXT, EDB, VT, Anti-Theft and some others)
TransactionalSynchronizationExtensionVersion
Thermal Monitoring Technologies
SIPP
MemoryProtectionExtensionsVersion
IdentityProtectionTechVersion
QuickSyncVideo

So, Core i7-7820X or Core i9-9900?

Technical City couldn't decide between Intel Core i7-7820X and Intel Core i9-9900. The differences in performance seem too small.
Should you still have questions on choice between Core i7-7820X and Core i9-9900, ask them in Comments section, and we shall answer.

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