AMD Radeon RX 640 videocard review

Radeon RX 640 videocard released by AMD; release date: 13 May 2019. The videocard is based on GCN 4.0 microarchitecture codenamed Arctic Islands.

Core clock speed - 1082 MHz. Boost clock speed - 1218 MHz. Texture fill rate - 38.98 GTexel/s. Pipelines - 512. Manufacturing process technology - 14 nm. Transistors count - 2200 million. Power consumption (TDP) - 50 Watt.

Memory type: GDDR5. Maximum RAM amount - 2 GB. Memory bus width - 128 bit. Memory clock speed - 1750 MHz (7000 MHz effective). Memory bandwidth - 112.0 GB/s.

Benchmarks

GFXBench 4.0
Manhattan
Top 1 GPU
This GPU
14480 Frames
1756 Frames
GFXBench 4.0
Manhattan
Top 1 GPU
This GPU
14480.000 Fps
1756.000 Fps
GFXBench 4.0
T-Rex
Top 1 GPU
This GPU
32624 Frames
1956 Frames
GFXBench 4.0
T-Rex
Top 1 GPU
This GPU
32624.000 Fps
1956.000 Fps
Name Value
GFXBench 4.0 - Manhattan 1756 Frames
GFXBench 4.0 - Manhattan 1756.000 Fps
GFXBench 4.0 - T-Rex 1956 Frames
GFXBench 4.0 - T-Rex 1956.000 Fps

Specifications (specs)

Essentials

Architecture GCN 4.0
Code name Arctic Islands
Launch date 13 May 2019
Place in performance rating 985

Technical info

Boost clock speed 1218 MHz
Compute units 8
Core clock speed 1082 MHz
Manufacturing process technology 14 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
Pixel fill rate 19.49 GPixel/s
Texture fill rate 38.98 GTexel/s
Thermal Design Power (TDP) 50 Watt
Transistor count 2200 million

Video outputs and ports

Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort
DisplayPort support
HDMI

Compatibility, dimensions and requirements

Interface PCIe 3.0 x8
Length 5.7 inches (145 mm)
Recommended system power (PSU) 350 Watt
Supplementary power connectors None
Width Dual-slot

API support

DirectX 12
OpenCL 2.0
OpenGL 4.6
Shader Model 6.4
Vulkan

Memory

Maximum RAM amount 2 GB
Memory bandwidth 112.0 GB/s
Memory bus width 128 bit
Memory clock speed 1750 MHz (7000 MHz effective)
Memory type GDDR5

Technologies

Unified Video Decoder (UVD)
Video Code Engine (VCE)