Intel Core i7 6785R vs Intel Core i9 7900X
We compared two desktop CPUs: Intel Core i7 6785R with 4 cores 3.3GHz and Intel Core i9 7900X with 10 cores 3.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i7 6785R 's Advantages
Integrated graphics card
Lower TDP (65W vs 140W)
Intel Core i9 7900X 's Advantages
Released 1 years late
Higher specification of memory (2666 vs 2133)
Larger memory bandwidth (79.47GB/s vs 34.1GB/s)
Newer PCIe version (3.0 vs 3)
Larger L3 cache size (14MB vs 8MB)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i7 6785R
718
Intel Core i9 7900X
+84%
1323
Geekbench 6 Multi Core
Intel Core i7 6785R
2101
Intel Core i9 7900X
+306%
8536
General Parameters
May 2016
Release Date
May 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
-
Instruction Set
x86-64
Skylake
Core Architecture
Skylake
-
Processor Number
i9-7900X
Intel BGA 1440
Socket
LGA-2066
Iris Pro 580
Integrated Graphics
N/A
Core i7(Skylake-R)
Generation
-
Package
14 nm
Manufacturing Process
14 nm
65 W
Power Consumption
140 W
100°C
Peak Operating Temperature
95 °C
Intel
Foundry
-
CPU Performance
4
Performance Cores
10
8
Performance Core Threads
20
3.3 GHz
Performance Core Base Frequency
3.3 GHz
3.9 GHz
Performance Core Turbo Frequency
4.3 GHz
4
Total Core Count
10
8
Total Thread Count
20
100 MHz
Bus Frequency
100 MHz
33.0
Multiplier
33x
64 KB per core
L1 Cache
64 K per core
256 KB per core
L2 Cache
1 MB per core
8 MB shared
L3 Cache
14 MB shared
No
Unlocked Multiplier
Yes
1
SMP
-
Memory Parameters
DDR3, DDR4-2133
Memory Types
DDR4-2666
64
Max Memory Size
128 GB
2
Max Memory Channels
4
34.1 GB/s
Max Memory Bandwidth
79.47 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
-
350 MHz
GPU Base Frequency
-
1150 MHz
GPU Max Dynamic Frequency
-
Miscellaneous
3
PCIe Version
3.0
16
PCIe Lanes
44
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
