AMD RX-421BD vs Intel Core i9-13900E

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CPU comparison with benchmarks


AMD RX-421BD CPU1 vs CPU2 Intel Core i9-13900E
AMD RX-421BD Intel Core i9-13900E

CPU comparison

AMD RX-421BD or Intel Core i9-13900E - 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 Intel Core i9-13900E has 24 cores with 32 threads and clocks with a maximum frequency of 5.20 GHz. The CPU supports up to 192 GB of memory in 2 memory channels. The Intel Core i9-13900E was released in Q1/2023.
AMD R (6) Family Intel Core i9 (78)
AMD RX 1st Gen. (6) CPU group Intel Core i 13000 (17)
1 Generation 13
Merlin Falcon (Excavator) Architecture Raptor Lake S
Mobile Segment Desktop / Server
-- Predecessor Intel Core i9-12900E
-- Successor --

CPU Cores and Base Frequency

The 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 Intel Core i9-13900E has 24 CPU cores and 32 threads can calculate simultaneously. The clock frequency of the Intel Core i9-13900E is at 1.80 GHz (5.20 GHz).

AMD RX-421BD Characteristic Intel Core i9-13900E
4 Cores 24
4 Threads 32
normal Core architecture hybrid (big.LITTLE)
No Hyperthreading Yes
No Overclocking ? No
2.10 GHz (3.40 GHz) A-Core 1.80 GHz (5.20 GHz)
8x Raptor Cove
-- B-Core 1.30 GHz (4.00 GHz)
16x Gracemont

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

AMD RX-421BD Characteristic Intel Core i9-13900E
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The AMD RX-421BD or Intel Core i9-13900E 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.

AMD Radeon R7 - 512 (Merlin Falcon) GPU Intel UHD Graphics 770
0.80 GHz GPU frequency 0.30 GHz
-- GPU (Turbo) 1.65 GHz
3 GPU Generation 11
28 Technology 10 nm
3 Max. displays 3
8 Compute units 32
512 Shader 256
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory 64 GB
12 DirectX Version 12

Hardware codec support

A 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.

AMD Radeon R7 - 512 (Merlin Falcon) GPU Intel UHD Graphics 770
Decode Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
No Codec VP9 Decode / Encode
No Codec VP8 Decode / Encode
No Codec AV1 Decode
No Codec AVC Decode / Encode
No Codec VC-1 Decode
Decode Codec JPEG Decode / Encode

Memory & PCIe

The AMD RX-421BD can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is 38.4 GB/s. The Intel Core i9-13900E supports up to 192 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 89.6 GB/s.

AMD RX-421BD Characteristic Intel Core i9-13900E
DDR4-2400, DDR3-2133 Memory DDR5-5600, DDR4-3200
Max. Memory 192 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
38.4 GB/s Max. Bandwidth 89.6 GB/s
Yes ECC Yes
2.00 MB L2 Cache 32.00 MB
-- L3 Cache 36.00 MB
3.0 PCIe version 5.0
12 PCIe lanes 20
11.8 GB/s PCIe Bandwidth 78.8 GB/s

Thermal Management

The thermal design power (TDP for short) of the AMD RX-421BD is 35 W, while the Intel Core i9-13900E has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD RX-421BD Characteristic Intel Core i9-13900E
35 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
-- TDP up --
12 W TDP down --
90 °C Tjunction max. 100 °C

Technical details

The AMD RX-421BD is manufactured in 28 nm and has 2.00 MB cache. The Intel Core i9-13900E is manufactured in 10 nm and has a 68.00 MB cache.

AMD RX-421BD Characteristic Intel Core i9-13900E
28 nm Technology 10 nm
Unknown Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 ISA extensions SSE4.1, SSE4.2, AVX2, AVX2+
FP4 Socket LGA 1700
AMD-V, AMD-Vt Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Operating systems Windows 10, Windows 11, Linux
Q4/2015 Release date Q1/2023
-- Release price --
show more data show more data


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iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
AMD RX-421BD AMD RX-421BD
AMD Radeon R7 - 512 (Merlin Falcon) @ 0.80 GHz
820 (97%)
Intel Core i9-13900E Intel Core i9-13900E
Intel UHD Graphics 770 @ 1.65 GHz
846 (100%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD RX-421BD AMD RX-421BD
4C 4T @ 3.40 GHz
0 (0%)
Intel Core i9-13900E Intel Core i9-13900E
24C 32T @ 5.20 GHz
2048 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD RX-421BD AMD RX-421BD
4C 4T @ 2.10 GHz
0 (0%)
Intel Core i9-13900E Intel Core i9-13900E
24C 32T @ 4.20 GHz
18977 (100%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
AMD RX-421BD AMD RX-421BD
4C 4T @ 3.40 GHz
0 (0%)
Intel Core i9-13900E Intel Core i9-13900E
24C 32T @ 5.20 GHz
2606 (100%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
AMD RX-421BD AMD RX-421BD
4C 4T @ 2.10 GHz
0 (0%)
Intel Core i9-13900E Intel Core i9-13900E
24C 32T @ 4.20 GHz
15862 (100%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
AMD RX-421BD AMD RX-421BD
4C 4T @ 2.10 GHz
0 (0%)
Intel Core i9-13900E Intel Core i9-13900E
24C 32T @ 4.20 GHz
36455 (100%)

Devices using this processor

AMD RX-421BD Intel Core i9-13900E
Unknown Unknown

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