Combined benchmark scores for both processors
Head-to-head processor comparison
Combined benchmark scores for both processors
Out of 2,060 results in the database
Rank #207
Rank #963
Core i9-7900X wins by 20.1% (Rank #207 vs #963)
Out of 2,060 results in the database
Rank #225
Rank #990
Core i9-7900X wins by 19.6% (Rank #225 vs #990)
Out of 2,060 results in the database
Rank #216
Rank #804
Core i9-7900X wins by 20.8% (Rank #216 vs #804)
Out of 1,771 results in the database
Rank #298
Rank #837
Core i9-7900X wins by 10.1% (Rank #298 vs #837)
Out of 1,771 results in the database
Rank #287
Rank #744
Core i9-7900X wins by 11.4% (Rank #287 vs #744)
Out of 1,771 results in the database
Rank #226
Rank #782
Core i9-7900X wins by 12.7% (Rank #226 vs #782)
Side-by-side comparison of key specifications
| Specification | Core i9-7900X | Core i7-3820 | Diff |
|---|---|---|---|
| Cores |
10
|
4
|
+60% |
| Threads |
20
|
8
|
+60% |
| Base Frequency |
3,300 MHz
|
3,600 MHz
|
-8.3% |
| Turbo Frequency (1 core) |
4,300 MHz
|
-- | |
| Turbo Frequency (2 cores) |
4,300 MHz
|
-- | |
| Clock Multiplier |
33x
|
-- | |
| L1 Cache |
640 KB
|
-- | |
| L2 Cache |
10 MiB
|
-- | |
| L3 Cache |
14 MiB
|
-- | |
| Memory Channels |
4
|
4
|
0% |
| Maximum Memory |
128 GB
|
0 GB
|
+100% |
| Max Bandwidth |
79 GB/s
|
51 GB/s
|
+35.6% |
| PCIe Lanes |
44
|
40
|
+9.1% |
| Max CPUs |
1
|
1
|
0% |
| TDP (lower is better) |
140 W
|
130 W
|
7.1% more |
| Process (lower is better) |
14 nm
|
32 nm
|
56.3% less |
| Specification | Core i9-7900X | Core i7-3820 |
|---|---|---|
| Designer | Intel | Intel |
| Family | Core | -- |
| Series | i9-7000 | -- |
| Model Number | i9-7900X | i7-3820 |
| Microarchitecture | Skylake | -- |
| Core Name | Skylake | -- |
| Core Family | 6 | -- |
| Core Model | 85 | -- |
| Socket | Socket | FCLGA1366 |
| Package | FCLGA-2066 | -- |
| Chipset | Lewisburg | -- |
| Memory Type | DDR4-2666 | DDR3 1066/1333/1600 |
| ECC Support | No | No |
| PCIe Revision | 3.0 | 2.0 |
| PCIe Configuration | x16, x8, x4 | 1x16 & 1x4, 2x8 & 1x4 or 1x8 & 3x4 |
| Market Segment | Desktop | -- |
| Release Price | $999.00 | -- |
| Locked Multiplier | No | -- |
Designer
Family
Series
Model Number
Microarchitecture
Core Name
Core Family
Core Model
Socket
Package
Chipset
Memory Type
ECC Support
PCIe Revision
PCIe Configuration
Market Segment
Release Price
Locked Multiplier
Manufacturing process and die characteristics
| Specification | Core i9-7900X | Core i7-3820 |
|---|---|---|
| Process | 14 nm | 32 nm |
| Manufacturer | Intel | -- |
| Technology | CMOS | -- |
| Word Size | 64-bit | 64-bit |
| ISA | x86-64 (x86) | -- |
Process
Manufacturer
Technology
Word Size
ISA
Integrated GPU specifications comparison
| Specification | Core i9-7900X | Core i7-3820 |
|---|---|---|
| GPU | -- | HD Graphics P4000 |
| GPU Designer | -- | Intel |
| GPU Max Frequency | -- | 1250 MHz |
GPU
GPU Designer
GPU Max Frequency
Supported instruction set extensions comparison
| Extension | Core i9-7900X | Core i7-3820 |
|---|---|---|
| ABM | ||
| ADX | ||
| AES | ||
| AVX | ||
| AVX-512 | ||
| AVX-512 | ||
| AVX2 | ||
| AVX512BW | ||
| AVX512CD | ||
| AVX512DQ | ||
| AVX512F | ||
| AVX512VL | ||
| BMI1 | ||
| BMI2 | ||
| CLMUL | ||
| EIST | ||
| EMMX | ||
| EPT | ||
| F16C | ||
| FMA | ||
| FMA3 | ||
| FPU | ||
| Flex Memory | ||
| HT | ||
| IPT | ||
| MMX | ||
| NX | ||
| Protected | ||
| RdRand | ||
| Real | ||
| SIPP | ||
| SMEP | ||
| SMM | ||
| SSE | ||
| SSE2 | ||
| SSE3 | ||
| SSE4.1 | ||
| SSE4.2 | ||
| SSSE3 | ||
| Secure Key | ||
| TBMT 3.0 | ||
| TBT 1.0 | ||
| TBT 2.0 | ||
| TSX | ||
| TXT | ||
| VT-d | ||
| VT-x | ||
| vPro | ||
| x86-16 | ||
| x86-32 | ||
| x86-64 |
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