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IntelBX80673I79800X
IntelBX80684I58400
▲ 51147 ▼

8 Cores, 16 Threads @3.80 GHz, Skylake.
Release date ≈ Q4 2018.

VS
▲ 625,343 ▼

6 Cores, 6 Threads @2.8GHz, Coffee Lake.
Release date: Q4 2017.

Effective Speed 
+1%
Real World Speed
Performance profile from 316,223 user samples
Benchmark your CPU here
4,003 User Benchmarks
Best Bench: 96% Base clock 3.8 GHz, turbo 4.05 GHz (avg)
Worst Bench: 73% Base clock 1.2 GHz, turbo 1.2 GHz (avg)
Poor: 73% Great: 96%
SPEED RANK: 211th / 1455
Gaming
Gaming 83%
Aircraft carrier
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 85%
Aircraft carrier
312,220 User Benchmarks
Best Bench: 89% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 61% Base clock 2.8 GHz, turbo 0.8 GHz (avg)
Poor: 61% Great: 89%
SPEED RANK: 219th / 1455
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 66%
Battle cruiser
Effective Speed
Effective CPU Speed 		82.9 % +1% 81.8 %
Average Score 
+16%
Memory
Avg. Memory Latency 		76.1 Pts 84.9 Pts Lower memory latency.
+12%
1-Core
Avg. Single Core Speed 		127 Pts Faster single-core speed.
+12% 		113 Pts
2-Core
Avg. Dual Core Speed 		250 Pts Faster dual-core speed.
+12% 		224 Pts
4-Core
Avg. Quad Core Speed 		481 Pts Faster quad-core speed.
+11% 		434 Pts
8-Core
Avg. Octa Core Speed 		880 Pts Much faster octa-core speed.
+56% 		564 Pts
Overclocked Score 
+28%
Memory
OC Memory Latency 		88.5 Pts 94.2 Pts Slightly lower OC memory latency.
+6%
1-Core
OC Single Core Speed 		150 Pts Faster OC single-core speed.
+25% 		120 Pts
2-Core
OC Dual Core Speed 		295 Pts Faster OC dual-core speed.
+24% 		237 Pts
4-Core
OC Quad Core Speed 		590 Pts Faster OC quad-core speed.
+25% 		471 Pts
8-Core
OC Octa Core Speed 		1112 Pts Much faster OC octa-core speed.
+69% 		657 Pts
Value & Sentiment 
+2,213%
Market Share
Based on 68,129,793 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.88 % Insanely higher market share.
+8,700%
Value
Value For Money 		68.9 % 105 % Much better value.
+52%
User Rating
UBM User Rating 		51 % 62 % More popular.
+22%
Price
Price (score) 		$545 $114 Much cheaper.
+79%
Nice To Haves 
+92%
Age
Newest 		66+ Months More recent.
+18% 		80 Months
64-Core
OC Multi Core Speed 		1564 Pts Hugely faster OC 64-core speed.
+132% 		675 Pts
64-Core
Avg. Multi Core Speed 		1342 Pts Hugely faster 64-core speed.
+128% 		588 Pts
Specifications 
Launch Date
Launch Date 		Q4'18 Q4'17
Cache
Cache 		16.5 MB SmartCache 9 MB
Instruction Set Extensions
Instruction Set Extensions 		Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 SSE4.1/4.2, AVX2
Max Turbo Frequency
Max Turbo Frequency 		4.40 GHz 4.00 GHz
Thermal Solution Specification
Thermal Solution Specification 		PCG 2017X PCG 2015C (65W)
Max Memory Size
Max Memory Size (dependent on memory type) 		128 GB 64 GB
Memory Channels
Max # of Memory Channels 		4 2
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡ 		Yes No
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		44 16

More specs » More specs »
Conclusion 
Average Bench 82.9%
Average Bench 81.8%
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Core i7-9800X is a 64-bit octa-core high-performance x86 desktop microprocessor from Intel (late 2018). A Skylake micro-architecture chip, is fabricated on using Intel's 14 nm process. The i7-9800X operates at 3.8 GHz with a TDP of 165 W and a Turbo Boost frequency of up to 4.4 GHz and am Turbo Max Boost frequency of 4.5 GHz. The processor supports up to 128 GiB of quad-channel DDR4-2666 memory and supports 44 PCIe lanes. A strong contender to the i9-9900k, yet slightly slower, except utilizing the x299 platform allowing for more ram and PCIe lanes (44 vs 16) [Jan '19 deweycd]

MORE DETAILS

The i5-8400 is a competitively priced hex-core processor from Intel’s 8th generation of Core processors (Coffee Lake). Along with the release of the unlocked i5-8600K, this is the first time that six-core processors have featured in the i5 line-up. Like the other Coffee Lake processors, the i5-8400 is based upon an improved version of Intel’s 14nm architecture which featured in both Skylake and Kaby Lake. Early benchmarks reveal that for average quad core usage (most games employ a maximum of four cores) the i5-8400 performs way above its pay grade. It achieves quad core mixed speeds close to Intel’s outgoing 2017 flagship the $300, quad-core, 8 thread i7-7700k, which to date has been a strong favourite for high-end gaming setups. On paper, the i5-8400 has a base clock of 2.8 GHz (Intel are significantly downplaying the performance of this SKU by giving it a relatively low nominal base clock), an all core boost of 3.8 GHz (this is the effective base clock figure that counts) and a single core boost of 4 GHz. This compares reasonably well to the i5-8600K which has a base clock of 3.6 GHz, all core boost of 4.1 GHz and a single core boost of 4.3 GHz. The i5-8400 also features 9MB of L3 cache and an energy-thrifty TDP of 65W. Priced at under $190, the i5-8400 offers fantastic value for money. Unfortunately, like the other Coffee Lake processors, the i5-8400 will require a new 300 series motherboard, and at the time of writing, the only available version is Intel’s high-end Z370 which isn't an ideal pairing for the i5-8400. The Z series motherboards are designed to cater for the unlocked and overclockable "K" SKUs. Cheaper 300 series motherboards will be available in 2018 at which time the 8400 will offer even better value for money. [Oct '17 CPUPro]

MORE DETAILS

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