AMD Radeon RX 6400 vs AMD Radeon HD 7850M

Comparative analysis of AMD Radeon RX 6400 and AMD Radeon HD 7850M 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.

AMD Radeon RX 6400

AMD Radeon HD 7850M

Differences

Reasons to consider the AMD Radeon RX 6400

Videocard is newer: launch date 9 year(s) 8 month(s) later
2.8x more core clock speed: 1923 MHz vs 675 MHz
4125.9x more texture fill rate: 111.4 GTexel/s vs 27 GTexel / s
Around 20% higher pipelines: 768 vs 640
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 6 nm vs 28 nm
2x more maximum memory size: 4 GB vs 2 GB
Around 25% better performance in PassMark - G2D Mark: 710 vs 566
5.6x better performance in PassMark - G3D Mark: 7624 vs 1373

Specifications (specs)
Launch date	19 Jan 2022 vs 24 April 2012
Core clock speed	1923 MHz vs 675 MHz
Texture fill rate	111.4 GTexel/s vs 27 GTexel / s
Pipelines	768 vs 640
Manufacturing process technology	6 nm vs 28 nm
Maximum memory size	4 GB vs 2 GB
Benchmarks
PassMark - G2D Mark	710 vs 566
PassMark - G3D Mark	7624 vs 1373

Reasons to consider the AMD Radeon HD 7850M

Around 33% lower typical power consumption: 40 Watt vs 53 Watt
2x more memory clock speed: 4000 MHz vs 2000 MHz, 16 Gbps effective

Thermal Design Power (TDP)	40 Watt vs 53 Watt
Memory clock speed	4000 MHz vs 2000 MHz, 16 Gbps effective

Compare benchmarks

GPU 1: AMD Radeon RX 6400
GPU 2: AMD Radeon HD 7850M

PassMark - G2D Mark

GPU 1

GPU 2

710

566

PassMark - G3D Mark

GPU 1

GPU 2

7624

1373

Name	AMD Radeon RX 6400	AMD Radeon HD 7850M
PassMark - G2D Mark	710	566
PassMark - G3D Mark	7624	1373
3DMark Fire Strike - Graphics Score	3576
Geekbench - OpenCL	32847

Compare specifications (specs)

	AMD Radeon RX 6400	AMD Radeon HD 7850M
Essentials
Architecture	RDNA 2.0	GCN 1.0
Code name	Navi 24	Heathrow
Launch date	19 Jan 2022	24 April 2012
Place in performance rating	238	234
Type		Laptop
Technical info
Boost clock speed	2321 MHz
Compute units	12
Core clock speed	1923 MHz	675 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	640
Pixel fill rate	74.27 GPixel/s
Texture fill rate	111.4 GTexel/s	27 GTexel / s
Thermal Design Power (TDP)	53 Watt	40 Watt
Transistor count	5400 million	1,500 million
Floating-point performance		864.0 gflops
Video outputs and ports
Display Connectors	1x HDMI 2.1, 1x DisplayPort 1.4a	No outputs
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
Laptop size		large
API support
DirectX	12 Ultimate (12_2)	12.0 (11_1)
OpenCL	2.2
OpenGL	4.6	4.5
Shader Model	6.7
Vulkan
Memory
Maximum RAM amount	4 GB	2 GB
Memory bandwidth	128.0 GB/s	64 GB / s
Memory bus width	64 bit	128 Bit
Memory clock speed	2000 MHz, 16 Gbps effective	4000 MHz
Memory type	GDDR6	GDDR5
Shared memory		0