AMD Radeon RX 640 vs AMD Radeon 520

Comparative analysis of AMD Radeon RX 640 and AMD Radeon 520 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), Geekbench - OpenCL, PassMark - G2D Mark, PassMark - G3D Mark.

AMD Radeon RX 640

AMD Radeon 520

Differences

Reasons to consider the AMD Radeon RX 640

Videocard is newer: launch date 2 year(s) 0 month(s) later
Around 5% higher core clock speed: 1082 MHz vs 1030 MHz
Around 18% higher boost clock speed: 1218 MHz vs 1030 MHz
Around 89% higher texture fill rate: 38.98 GTexel/s vs 20.60 GTexel/s
Around 60% higher pipelines: 512 vs 320
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 14 nm vs 28 nm
Around 42% better performance in GFXBench 4.0 - Manhattan (Frames): 1769 vs 1242
Around 42% better performance in GFXBench 4.0 - Manhattan (Fps): 1769 vs 1242
2.8x better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 3278 vs 1182
2.8x better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 3278 vs 1182
Around 65% better performance in PassMark - G2D Mark: 340 vs 206
2.3x better performance in PassMark - G3D Mark: 1952 vs 860

Specifications (specs)
Launch date	13 May 2019 vs 18 April 2017
Core clock speed	1082 MHz vs 1030 MHz
Boost clock speed	1218 MHz vs 1030 MHz
Texture fill rate	38.98 GTexel/s vs 20.60 GTexel/s
Pipelines	512 vs 320
Manufacturing process technology	14 nm vs 28 nm
Benchmarks
GFXBench 4.0 - Manhattan (Frames)	1769 vs 1242
GFXBench 4.0 - Manhattan (Fps)	1769 vs 1242
GFXBench 4.0 - Car Chase Offscreen (Frames)	3278 vs 1182
GFXBench 4.0 - Car Chase Offscreen (Fps)	3278 vs 1182
PassMark - G2D Mark	340 vs 206
PassMark - G3D Mark	1952 vs 860

Reasons to consider the AMD Radeon 520

2x more maximum memory size: 4 GB vs 2 GB
2.6x more memory clock speed: 4500 MHz vs 1750 MHz (7000 MHz effective)
Around 21% better performance in GFXBench 4.0 - T-Rex (Frames): 3351 vs 2775
Around 21% better performance in GFXBench 4.0 - T-Rex (Fps): 3351 vs 2775
2.5x better performance in Geekbench - OpenCL: 26304 vs 10390

Specifications (specs)
Maximum memory size	4 GB vs 2 GB
Memory clock speed	4500 MHz vs 1750 MHz (7000 MHz effective)
Benchmarks
GFXBench 4.0 - T-Rex (Frames)	3351 vs 2775
GFXBench 4.0 - T-Rex (Fps)	3351 vs 2775
Geekbench - OpenCL	26304 vs 10390

Compare benchmarks

GPU 1: AMD Radeon RX 640
GPU 2: AMD Radeon 520

GFXBench 4.0 - Manhattan (Frames)

GPU 1

GPU 2

1769

1242

GFXBench 4.0 - Manhattan (Fps)

GPU 1

GPU 2

1769

1242

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

2775

3351

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

2775

3351

GFXBench 4.0 - Car Chase Offscreen (Frames)

GPU 1

GPU 2

3278

1182

GFXBench 4.0 - Car Chase Offscreen (Fps)

GPU 1

GPU 2

3278

1182

Geekbench - OpenCL

GPU 1

GPU 2

10390

26304

PassMark - G2D Mark

GPU 1

GPU 2

340

206

PassMark - G3D Mark

GPU 1

GPU 2

1952

860

Name	AMD Radeon RX 640	AMD Radeon 520
GFXBench 4.0 - Manhattan (Frames)	1769	1242
GFXBench 4.0 - Manhattan (Fps)	1769	1242
GFXBench 4.0 - T-Rex (Frames)	2775	3351
GFXBench 4.0 - T-Rex (Fps)	2775	3351
GFXBench 4.0 - Car Chase Offscreen (Frames)	3278	1182
GFXBench 4.0 - Car Chase Offscreen (Fps)	3278	1182
Geekbench - OpenCL	10390	26304
PassMark - G2D Mark	340	206
PassMark - G3D Mark	1952	860

Compare specifications (specs)

	AMD Radeon RX 640	AMD Radeon 520
Essentials
Architecture	GCN 4.0	GCN 1.0
Code name	Arctic Islands	Oland
Launch date	13 May 2019	18 April 2017
Place in performance rating	810	1098
Design		Radeon 500 Series
GCN generation		1st Gen
Type		Desktop, Laptop
Technical info
Boost clock speed	1218 MHz	1030 MHz
Compute units	8	5
Core clock speed	1082 MHz	1030 MHz
Manufacturing process technology	14 nm	28 nm
Peak Double Precision (FP64) Performance	77.95 GFLOPS
Peak Half Precision (FP16) Performance	1247 GFLOPS
Peak Single Precision (FP32) Performance	1247 GFLOPS
Pipelines	512	320
Pixel fill rate	19.49 GPixel/s	4.10 GP/s
Texture fill rate	38.98 GTexel/s	20.60 GTexel/s
Thermal Design Power (TDP)	50 Watt	50 Watt
Transistor count	2200 million	1,040 million
Floating-point performance		660 GFLOPs
Render output units		4
Stream Processors		320
Texture Units		20
Video outputs and ports
Display Connectors	1x DVI, 1x HDMI, 1x DisplayPort	1x DVI, 1x HDMI, 1x VGA
DisplayPort support
HDMI
Dual-link DVI support
VGA
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x8	PCIe 3.0 x8
Length	5.7 inches (145 mm)
Recommended system power (PSU)	350 Watt
Supplementary power connectors	None	None
Width	Dual-slot
API support
DirectX	12	12
OpenCL	2.0	2.0
OpenGL	4.6	4.5
Shader Model	6.4
Vulkan
Memory
Maximum RAM amount	2 GB	4 GB
Memory bandwidth	112.0 GB/s	48 GB/s
Memory bus width	128 bit	64 bit
Memory clock speed	1750 MHz (7000 MHz effective)	4500 MHz
Memory type	GDDR5	GDDR5
Shared memory		0
Technologies
Unified Video Decoder (UVD)
Video Code Engine (VCE)
4K H264 Decode
4K H264 Encode
AMD Graphics Core Next (GCN) Architecture
AMD Radeon™ ReLive
AppAcceleration
DualGraphics
Enduro
H265/HEVC Decode
H265/HEVC Encode
HDMI 4K Support
PowerTune
TressFX