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Intel Core i5-8400T vs AMD RX-421BD
Last updated:
Benchmarks
Performance Overview
Average performance across multiple benchmarks
Single-core performance
Multi-core performance
iGPU - FP32 Performance (Single-precision GFLOPS)
Intel Core i5-8400T
54 %
Intel UHD Graphics 630
AMD RX-421BD
100 %
AMD Radeon R7 - 512 (Merlin Falcon)
More benchmarks
Cinebench 2024 (SC)
427 entries
427 entries
Cinebench 2024 (MC)
422 entries
422 entries
Geekbench 6 (SC)
1,989 entries
1,989 entries
Geekbench 6 (MC)
1,927 entries
1,927 entries
Geekbench 5 (SC)
2,512 entries
2,512 entries
Geekbench 5 (MC)
2,483 entries
2,483 entries
FP32 SP (iGPU)
2,219 entries
2,219 entries
3DMark Timespy (iGPU)
534 entries
534 entries
PassMark CPU-Mark
2,504 entries
2,504 entries
CPU-Z Benchmark 17 (MC)
751 entries
751 entries
Cinebench R15 (SC)
1,113 entries
1,113 entries
Cinebench R15 (MC)
1,110 entries
1,110 entries
Geekbench 3 (SC)
945 entries
945 entries
Geekbench 3 (MC)
941 entries
941 entries
Cinebench R11.5 (SC)
826 entries
826 entries
Cinebench R11.5 (MC)
837 entries
837 entries
Cinebench R11.5 iGPU
383 entries
383 entries
Specifications
At a glance
|
Wischen
|
Intel Core i5-8400T | AMD RX-421BD |
|---|---|---|
| Family | Intel Core i5 (336) | AMD R (6) |
| CPU group | Intel Core i 8000 (20) | AMD RX 1st Gen. (6) |
| Architecture | Coffee Lake S | Merlin Falcon (Excavator) |
| Technology | 14 nm | 28 nm |
| Segment | Desktop | Notebook |
| Socket | LGA 1151-2 | FP4 |
| Predecessor | Intel Core i5-7400T | |
| Successor | Intel Core i5-9400T |
CPU Cores and Base Frequency
|
Wischen
|
Intel Core i5-8400T | AMD RX-421BD |
|---|---|---|
| CPU Cores / Threads | 6 / 6 | 4 / 4 |
| Hyperthreading / SMT | ✗ | ✗ |
| Core architecture | normal | normal |
| Cores: | 6x | 4x |
| Frequency: | 1.70 GHz | 2.10 GHz |
| Turbo (1 Core): | 3.30 GHz | 3.40 GHz |
| Turbo (All Cores): | 2.80 GHz | |
| L2-Cache | 2.00 MB | |
| L3-Cache | 9.00 MB | |
| Overclocking | ✓ | ✗ |
Integrated graphics (iGPU)
|
Wischen
|
Intel Core i5-8400T | AMD RX-421BD |
|---|---|---|
| GPU name | Intel UHD Graphics 630 | AMD Radeon R7 - 512 (Merlin Falcon) |
| GPU frequency | 0.35 - 1.15 GHz | 0.80 GHz |
| CUs / Shader | 24 / 192 | 8 / 512 |
| Raytracing | ✗ | ✗ |
| Max. displays | 3 | 3 |
| Max. GPU Memory | 64 GB | 2 GB |
| Technology | 14 nm | 28 |
| Release date | Q4/2017 | 2015 |
NPU AI performance
|
Wischen
|
Intel Core i5-8400T | AMD RX-421BD |
|---|---|---|
| AI hardware | ||
| AI specifications | ||
| NPU + CPU + iGPU |
Memory & PCIe
|
Wischen
|
Intel Core i5-8400T | AMD RX-421BD |
|---|---|---|
| Memory | DDR4-2666 (42.7 GB/s) | DDR4-2400 (38.4 GB/s) DDR3-2133 (34.2 GB/s) |
| Max. Memory | 128 GB | |
| Memory channels | 2 | 2 |
| ECC | No | Yes |
| PCIe | 3.0 x 16 | 3.0 x 12 |
| PCIe Bandwidth | 15.8 GB/s | 11.8 GB/s |
Thermal Management
|
Wischen
|
Intel Core i5-8400T | AMD RX-421BD |
|---|---|---|
| TDP | 95 W | 35 W |
| TDP (PL2) | ||
| TDP up | ||
| TDP down | 12 W | |
| T. junction max. | 90 °C |
Technical details
|
Wischen
|
Intel Core i5-8400T | AMD RX-421BD |
|---|---|---|
| Chip design | Monolithic | Unknown |
| AES-NI | ✓ | ✓ |
| Operating systems | Windows 10, Windows 11, Linux | |
| Instruction set | x86-64 (64 bit) | x86-64 (64 bit) |
| ISA extensions | SSE4.1, SSE4.2, AVX2 | SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 |
| Release date | Q2/2018 | Q4/2015 |
| Release price | 260 $ | |
| Documents | Technical data sheet |
User Reviews
Your rating
Here you can rate one or both of the processors. The average rating of Intel Core i5-8400T is 4.6 stars (12 ratings), while AMD RX-421BD has received 0 stars (0 ratings).
Click on the stars to rate one or both processors.
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Intel Core i5-8400T
6C / 6T · 3.30 GHz
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AMD RX-421BD
4C / 4T · 3.40 GHz
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