Intel Core i7-3970X | AMD RX-421ND | |
CPU comparisonIntel Core i7-3970X or AMD RX-421ND - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The Intel Core i7-3970X has 6 cores with 12 threads and clocks with a maximum frequency of 4.00 GHz. Up to 64 GB of memory is supported in 4 memory channels. The Intel Core i7-3970X was released in Q4/2012. The AMD RX-421ND has 4 cores with 4 threads and clocks with a maximum frequency of 3.40 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD RX-421ND was released in Q4/2015. |
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Intel Core i7 Extreme Edition (24) | Family | AMD R (6) |
Intel Core i 3000X (4) | CPU group | AMD RX 1st Gen. (6) |
3 | Generation | 1 |
Sandy Bridge E | Architecture | Merlin Falcon (Excavator) |
Desktop / Server | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i7-3970X has 6 CPU cores and can calculate 12 threads in parallel. The clock frequency of the Intel Core i7-3970X is 3.50 GHz (4.00 GHz) while the AMD RX-421ND has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD RX-421ND is at 2.10 GHz (3.40 GHz). |
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Intel Core i7-3970X | Characteristic | AMD RX-421ND |
6 | Cores | 4 |
12 | Threads | 4 |
normal | Core architecture | normal |
Yes | Hyperthreading | No |
Yes | Overclocking ? | No |
3.50 GHz | Frequency | 2.10 GHz |
4.00 GHz | Turbo Frequency (1 Core) | 3.40 GHz |
4.00 GHz | Turbo Frequency (All Cores) | -- |
Memory & PCIeThe Intel Core i7-3970X can use up to 64 GB of memory in 4 memory channels. The maximum memory bandwidth is 51.2 GB/s. The AMD RX-421ND supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 38.4 GB/s. |
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Intel Core i7-3970X | Characteristic | AMD RX-421ND |
DDR3-1600 | Memory | DDR4-2400, DDR3-2133 |
64 GB | Max. Memory | |
4 (Quad Channel) | Memory channels | 2 (Dual Channel) |
51.2 GB/s | Max. Bandwidth | 38.4 GB/s |
No | ECC | Yes |
-- | L2 Cache | 2.00 MB |
15.00 MB | L3 Cache | -- |
2.0 | PCIe version | 3.0 |
40 | PCIe lanes | 12 |
20.0 GB/s | PCIe Bandwidth | 11.8 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Core i7-3970X is 150 W, while the AMD RX-421ND has a TDP of 35 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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Intel Core i7-3970X | Characteristic | AMD RX-421ND |
150 W | TDP (PL1 / PBP) | 35 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | 12 W |
-- | Tjunction max. | 90 °C |
Technical detailsThe Intel Core i7-3970X is manufactured in 32 nm and has 15.00 MB cache. The AMD RX-421ND is manufactured in 28 nm and has a 2.00 MB cache. |
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Intel Core i7-3970X | Characteristic | AMD RX-421ND |
32 nm | Technology | 28 nm |
Monolithic | Chip design | Unknown |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4.1, SSE4.2, AVX | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 |
LGA 2011 | Socket | FP4 |
VT-x, VT-x EPT, VT-d (C2 Stepping) | Virtualization | AMD-V, AMD-Vt |
Yes | AES-NI | Yes |
Windows 10, Linux | Operating systems | |
Q4/2012 | Release date | Q4/2015 |
820 $ | Release price | -- |
show more data | show more data | |
Intel Core i7-3970X
6C 12T @ 4.00 GHz |
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AMD RX-421ND
4C 4T @ 3.40 GHz |
Intel Core i7-3970X
6C 12T @ 4.00 GHz |
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AMD RX-421ND
4C 4T @ 2.10 GHz |
Intel Core i7-3970X
6C 12T @ 4.00 GHz |
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AMD RX-421ND
4C 4T @ 3.40 GHz |
Intel Core i7-3970X
6C 12T @ 4.00 GHz |
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AMD RX-421ND
4C 4T @ 2.10 GHz |
Intel Core i7-3970X
6C 12T @ 4.00 GHz |
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AMD RX-421ND
4C 4T @ 2.10 GHz |
Intel Core i7-3970X
6C 12T @ 3.50 GHz |
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AMD RX-421ND
4C 4T @ 2.10 GHz |
Intel Core i7-3970X
6C 12T @ 4.00 GHz |
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AMD RX-421ND
4C 4T @ 3.40 GHz |
Intel Core i7-3970X
6C 12T @ 4.00 GHz |
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AMD RX-421ND
4C 4T @ 2.10 GHz |
Devices using this processor |
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Intel Core i7-3970X | AMD RX-421ND |
Unknown | Unknown |