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.

 

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
  • 2.3x better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 3278 vs 1421
  • 2.3x better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 3278 vs 1421
  • Around 5% better performance in PassMark - G2D Mark: 255 vs 242
  • Around 55% better performance in PassMark - G3D Mark: 1364 vs 878
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 - Car Chase Offscreen (Frames) 3278 vs 1421
GFXBench 4.0 - Car Chase Offscreen (Fps) 3278 vs 1421
PassMark - G2D Mark 255 vs 242
PassMark - G3D Mark 1364 vs 878

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 23% better performance in GFXBench 4.0 - Manhattan (Frames): 2160 vs 1763
  • Around 23% better performance in GFXBench 4.0 - Manhattan (Fps): 2160 vs 1763
  • Around 42% better performance in GFXBench 4.0 - T-Rex (Frames): 3349 vs 2365
  • Around 42% better performance in GFXBench 4.0 - T-Rex (Fps): 3349 vs 2365
  • 2.5x better performance in Geekbench - OpenCL: 26304 vs 10548
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 - Manhattan (Frames) 2160 vs 1763
GFXBench 4.0 - Manhattan (Fps) 2160 vs 1763
GFXBench 4.0 - T-Rex (Frames) 3349 vs 2365
GFXBench 4.0 - T-Rex (Fps) 3349 vs 2365
Geekbench - OpenCL 26304 vs 10548

Compare benchmarks

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

GFXBench 4.0 - Manhattan (Frames)
GPU 1
GPU 2
1763
2160
GFXBench 4.0 - Manhattan (Fps)
GPU 1
GPU 2
1763
2160
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
2365
3349
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
2365
3349
GFXBench 4.0 - Car Chase Offscreen (Frames)
GPU 1
GPU 2
3278
1421
GFXBench 4.0 - Car Chase Offscreen (Fps)
GPU 1
GPU 2
3278
1421
Geekbench - OpenCL
GPU 1
GPU 2
10548
26304
PassMark - G2D Mark
GPU 1
GPU 2
255
242
PassMark - G3D Mark
GPU 1
GPU 2
1364
878
Name AMD Radeon RX 640 AMD Radeon 520
GFXBench 4.0 - Manhattan (Frames) 1763 2160
GFXBench 4.0 - Manhattan (Fps) 1763 2160
GFXBench 4.0 - T-Rex (Frames) 2365 3349
GFXBench 4.0 - T-Rex (Fps) 2365 3349
GFXBench 4.0 - Car Chase Offscreen (Frames) 3278 1421
GFXBench 4.0 - Car Chase Offscreen (Fps) 3278 1421
Geekbench - OpenCL 10548 26304
PassMark - G2D Mark 255 242
PassMark - G3D Mark 1364 878

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 846 835
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