AMD RX-421BD

AMD RX-421BD
Benchmarks & Specs

Last updated:
The AMD RX-421BD was a processor that particularly shone in integrated solutions. It was based on the Merlin Falcon architecture and manufactured using the proven 28 nm process. One of its standout features was certainly its integrated graphics. The AMD Radeon R7 offered truly solid performance at the time.

This made it very well-suited for everyday applications and media playback. This integrated graphics card was also sufficient for the occasional lighter game. The energy efficiency of this chip was also a frequently praised plus point. Many devices that used this processor benefited from good battery life.

The combination of CPU and GPU on a single chip was a particularly clever decision. This allowed manufacturers to develop very compact and capable systems at the same time. With 2 MB of Level 2 cache, the processor was well-equipped for simple multitasking. The maximum memory bandwidth of 38 GB/s actively supported the integrated graphics.

Overall, the AMD RX-421BD was a reliable choice for its time. It offered a balanced performance, especially for mobile applications. Even today, it can still be useful for basic tasks.
  • Integrated graphics (AMD Radeon R7)
  • High energy efficiency
  • Compact all-in-one solution
  • Good for basic tasks

Performance Overview
Average performance across multiple benchmarks

Single-core performance
Rank ? / ?
In segment Notebook
Multi-core performance
Rank ? / ?
In segment Notebook
iGPU - FP32 Performance (Single-precision GFLOPS)

iGPU - FP32 Performance (Single-precision GFLOPS)

Intel Core i7-4950HQ
Intel Iris Pro Graphics 5200
832
Intel Core i7-4980HQ
Intel Iris Pro Graphics 5200
832
AMD RX-421BD
AMD RX-421BD 100 %
AMD Radeon R7 - 512 (Merlin Falcon)
820
Intel Core i7-13850HX
Intel UHD Graphics 13th Gen (32 EU)
819
Intel Core i7-14700HX
Intel UHD Graphics 13th Gen (32 EU)
819

More benchmarks

At a glance

PropertyValue
FamilyAMD R (6)
CPU groupAMD RX 1st Gen. (6)
ArchitectureMerlin Falcon (Excavator)
Technology28 nm
SegmentNotebook
SocketFP4
Generation1
Predecessor
Successor

CPU Cores and Base Frequency

PropertyValue
CPU Cores / Threads4 / 4
Hyperthreading / SMT
Core architecturenormal
Cores: 4x
Frequency: 2.10 GHz
Turbo Frequency (1 Core): 3.40 GHz
Turbo Frequency (4 Cores):
L2-Cache2.00 MB
L3-Cache
OverclockingNo

Integrated graphics (iGPU)

PropertyValue
GPU nameAMD Radeon R7 - 512 (Merlin Falcon)
GPU frequency0.80 GHz
CUs / Shader8 / 512
Raytracing
Max. displays3
Max. GPU Memory2 GB
Technology28
Release date2015

Memory & PCIe

Memory typeMemory bandwidth
DDR4-2400
DDR3-2133
38.4 GB/s
34.2 GB/s
PropertyValue
Max. Memory
Memory channels2
ECC
PCIe3.0 x 12
PCIe Bandwidth11.8 GB/s

Thermal Management

PropertyValue
TDP35 W
TDP (PL2)
TDP up
TDP down12 W
T. junction max.90 °C

Technical details

PropertyValue
Chip design
AES-NI
Operating systems
Instruction setx86-64 (64 bit)
ISA extensionsSSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4
Release dateQ4/2015
Release price
Documents
AMD RX-421BD
AMD RX-421BD
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