AMD RX-421BD | AMD Ryzen Threadripper PRO 3995WX | |
CPU comparisonAMD RX-421BD or AMD Ryzen Threadripper PRO 3995WX - 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 AMD RX-421BD has 4 cores with 4 threads and clocks with a maximum frequency of 3.40 GHz. Up to GB of memory is supported in 2 memory channels. The AMD RX-421BD was released in Q4/2015. The AMD Ryzen Threadripper PRO 3995WX has 64 cores with 128 threads and clocks with a maximum frequency of 4.20 GHz. The CPU supports up to 2048 GB of memory in 8 memory channels. The AMD Ryzen Threadripper PRO 3995WX was released in Q1/2021. |
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AMD R (6) | Family | AMD Ryzen Threadripper PRO (15) |
AMD RX 1st Gen. (6) | CPU group | AMD Ryzen Threadripper PRO 3000 (4) |
1 | Generation | 3 |
Merlin Falcon (Excavator) | Architecture | Castle Peak (Zen 2) |
Mobile | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | AMD Ryzen Threadripper PRO 5995WX |
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CPU Cores and Base FrequencyThe AMD RX-421BD has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD RX-421BD is 2.10 GHz (3.40 GHz) while the AMD Ryzen Threadripper PRO 3995WX has 64 CPU cores and 128 threads can calculate simultaneously. The clock frequency of the AMD Ryzen Threadripper PRO 3995WX is at 2.70 GHz (4.20 GHz). |
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AMD RX-421BD | Characteristic | AMD Ryzen Threadripper PRO 3995WX |
4 | Cores | 64 |
4 | Threads | 128 |
normal | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | Yes |
2.10 GHz | Frequency | 2.70 GHz |
3.40 GHz | Turbo Frequency (1 Core) | 4.20 GHz |
-- | Turbo Frequency (All Cores) | 3.00 GHz |
Integrated graphics (iGPU)The AMD RX-421BD or AMD Ryzen Threadripper PRO 3995WX has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. |
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AMD Radeon R7 - 512 (Merlin Falcon) | GPU | no iGPU |
0.80 GHz | GPU frequency | -- |
-- | GPU (Turbo) | -- |
3 | GPU Generation | -- |
28 | Technology | |
3 | Max. displays | |
8 | Compute units | -- |
512 | Shader | -- |
No | Hardware Raytracing | No |
No | Frame Generation | No |
2 GB | Max. GPU Memory | -- |
12 | DirectX Version | -- |
Hardware codec supportA photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos. |
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AMD Radeon R7 - 512 (Merlin Falcon) | GPU | no iGPU |
Decode | Codec h265 / HEVC (8 bit) | No |
No | Codec h265 / HEVC (10 bit) | No |
Decode / Encode | Codec h264 | No |
No | Codec VP9 | No |
No | Codec VP8 | No |
No | Codec AV1 | No |
No | Codec AVC | No |
No | Codec VC-1 | No |
Decode | Codec JPEG | No |
Memory & PCIeThe AMD RX-421BD can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is 38.4 GB/s. The AMD Ryzen Threadripper PRO 3995WX supports up to 2048 GB of memory in 8 memory channels and achieves a memory bandwidth of up to 51.2 GB/s. |
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AMD RX-421BD | Characteristic | AMD Ryzen Threadripper PRO 3995WX |
DDR4-2400, DDR3-2133 | Memory | DDR4-3200 |
Max. Memory | 2048 GB | |
2 (Dual Channel) | Memory channels | 8 (Octa Channel) |
38.4 GB/s | Max. Bandwidth | 51.2 GB/s |
Yes | ECC | Yes |
2.00 MB | L2 Cache | 32.00 MB |
-- | L3 Cache | 256.00 MB |
3.0 | PCIe version | 4.0 |
12 | PCIe lanes | 128 |
11.8 GB/s | PCIe Bandwidth | 252.0 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD RX-421BD is 35 W, while the AMD Ryzen Threadripper PRO 3995WX has a TDP of 280 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD RX-421BD | Characteristic | AMD Ryzen Threadripper PRO 3995WX |
35 W | TDP (PL1 / PBP) | 280 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
12 W | TDP down | -- |
90 °C | Tjunction max. | 95 °C |
Technical detailsThe AMD RX-421BD is manufactured in 28 nm and has 2.00 MB cache. The AMD Ryzen Threadripper PRO 3995WX is manufactured in 7 nm and has a 288.00 MB cache. |
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AMD RX-421BD | Characteristic | AMD Ryzen Threadripper PRO 3995WX |
28 nm | Technology | 7 nm |
Unknown | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
FP4 | Socket | WRX8 (sWRX8) |
AMD-V, AMD-Vt | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Operating systems | Windows 10, Windows 11, Linux | |
Q4/2015 | Release date | Q1/2021 |
-- | Release price | 5489 $ |
show more data | show more data | |
AMD RX-421BD
4C 4T @ 3.40 GHz |
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AMD Ryzen Threadripper PRO 3995WX
64C 128T @ 4.20 GHz |
AMD RX-421BD
4C 4T @ 2.10 GHz |
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AMD Ryzen Threadripper PRO 3995WX
64C 128T @ 3.00 GHz |
AMD RX-421BD
4C 4T @ 3.40 GHz |
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AMD Ryzen Threadripper PRO 3995WX
64C 128T @ 4.20 GHz |
AMD RX-421BD
4C 4T @ 2.10 GHz |
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AMD Ryzen Threadripper PRO 3995WX
64C 128T @ 3.00 GHz |
AMD RX-421BD
4C 4T @ 3.40 GHz |
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AMD Ryzen Threadripper PRO 3995WX
64C 128T @ 4.20 GHz |
AMD RX-421BD
4C 4T @ 2.10 GHz |
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AMD Ryzen Threadripper PRO 3995WX
64C 128T @ 3.00 GHz |
AMD RX-421BD
4C 4T @ 3.40 GHz |
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AMD Ryzen Threadripper PRO 3995WX
64C 128T @ 4.20 GHz |
AMD RX-421BD
4C 4T @ 2.10 GHz |
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AMD Ryzen Threadripper PRO 3995WX
64C 128T @ 3.00 GHz |
AMD RX-421BD
AMD Radeon R7 - 512 (Merlin Falcon) @ 0.80 GHz |
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AMD Ryzen Threadripper PRO 3995WX
@ 0.00 GHz |
AMD RX-421BD
4C 4T @ 2.10 GHz |
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AMD Ryzen Threadripper PRO 3995WX
64C 128T @ 3.00 GHz |
AMD RX-421BD
4C 4T @ 2.10 GHz |
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AMD Ryzen Threadripper PRO 3995WX
64C 128T @ 3.00 GHz |
AMD RX-421BD
4C 4T @ 2.10 GHz |
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AMD Ryzen Threadripper PRO 3995WX
64C 128T @ 2.70 GHz |
Devices using this processor |
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AMD RX-421BD | AMD Ryzen Threadripper PRO 3995WX |
Unknown | Unknown |