AMD Radeon RX 6400 vs AMD Radeon R9 390 X2

Comparative analysis of AMD Radeon RX 6400 and AMD Radeon R9 390 X2 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory. Benchmark videocards performance analysis: PassMark - G2D Mark, PassMark - G3D Mark, 3DMark Fire Strike - Graphics Score, Geekbench - OpenCL, CompuBench 1.5 Desktop - T-Rex (Frames/s).

AMD Radeon RX 6400

AMD Radeon R9 390 X2

Differences

Reasons to consider the AMD Radeon RX 6400

Videocard is newer: launch date 6 year(s) 4 month(s) later
Around 92% higher core clock speed: 1923 MHz vs 1000 MHz
51.6x more texture fill rate: 111.4 GTexel/s vs 2x 160.0 GTexel / s billion / sec
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 6 nm vs 28 nm
10.9x lower typical power consumption: 53 Watt vs 580 Watt

Launch date	19 Jan 2022 vs 3 September 2015
Core clock speed	1923 MHz vs 1000 MHz
Texture fill rate	111.4 GTexel/s vs 2x 160.0 GTexel / s billion / sec
Manufacturing process technology	6 nm vs 28 nm
Thermal Design Power (TDP)	53 Watt vs 580 Watt

Reasons to consider the AMD Radeon R9 390 X2

6.7x more pipelines: 2x 2560 vs 768
4x more maximum memory size: 2x 8 GB vs 4 GB
2.7x more memory clock speed: 5400 MHz vs 2000 MHz, 16 Gbps effective

Pipelines	2x 2560 vs 768
Maximum memory size	2x 8 GB vs 4 GB
Memory clock speed	5400 MHz vs 2000 MHz, 16 Gbps effective

Compare benchmarks

GPU 1: AMD Radeon RX 6400
GPU 2: AMD Radeon R9 390 X2

Name	AMD Radeon RX 6400	AMD Radeon R9 390 X2
PassMark - G2D Mark	715
PassMark - G3D Mark	7636
3DMark Fire Strike - Graphics Score	171
Geekbench - OpenCL	32955
CompuBench 1.5 Desktop - T-Rex (Frames/s)		21.128

Compare specifications (specs)

	AMD Radeon RX 6400	AMD Radeon R9 390 X2
Essentials
Architecture	RDNA 2.0	GCN 2.0
Code name	Navi 24	Grenada
Launch date	19 Jan 2022	3 September 2015
Place in performance rating	267	266
Launch price (MSRP)		$1,399
Type		Desktop
Technical info
Boost clock speed	2321 MHz
Compute units	12
Core clock speed	1923 MHz	1000 MHz
Manufacturing process technology	6 nm	28 nm
Peak Double Precision (FP64) Performance	222.8 GFLOPS (1:16)
Peak Half Precision (FP16) Performance	7.130 TFLOPS (2:1)
Peak Single Precision (FP32) Performance	3.565 TFLOPS
Pipelines	768	2x 2560
Pixel fill rate	74.27 GPixel/s
Texture fill rate	111.4 GTexel/s	2x 160.0 GTexel / s billion / sec
Thermal Design Power (TDP)	53 Watt	580 Watt
Transistor count	5400 million	6,200 million
Floating-point performance		2x 5,120 gflops
Video outputs and ports
Display Connectors	1x HDMI 2.1, 1x DisplayPort 1.4a	2x DVI, 1x HDMI, 1x DisplayPort
Compatibility, dimensions and requirements
Form factor	Single-slot
Interface	PCIe 4.0 x4	PCIe 3.0 x16
Recommended system power (PSU)	250 Watt
Supplementary power connectors	None	4x 8-pin
API support
DirectX	12 Ultimate (12_2)	12.0 (12_0)
OpenCL	2.2
OpenGL	4.6	4.5
Shader Model	6.7
Vulkan
Memory
Maximum RAM amount	4 GB	2x 8 GB
Memory bandwidth	128.0 GB/s	2x 345.6 GB / s
Memory bus width	64 bit	2x 512 Bit
Memory clock speed	2000 MHz, 16 Gbps effective	5400 MHz
Memory type	GDDR6	GDDR5