AMD Radeon RX 640 Mobile: GPU Specs & Benchmarks

The Radeon RX 640 Mobile is a graphics card by AMD, built on the 14 nm process and based on the Polaris 23 graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

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Graphics Processor (GPU)

GPU Name
Polaris 23
Model number
Polaris 23 XT
Architecture
GCN 4.0
Foundry
GlobalFoundries
Process Size
14 nm
Transistors
2,200 million
Die Size
103 mm²

Graphics Card

Release Date
May 13th, 2019
Family
Mobility Radeon
(M600)
Production
Active
Predecessor
Crystal System
Bus Interface
PCIe 3.0 x8

Memory

Memory Size
2 GB
Memory Type
GDDR5
Memory Bus
64 bit
Bandwidth
48.00 GB/s

Performance

Pixel fillrate
19.49 GPixel/s
Texture fillrate
48.72 GTexel/s
FP16 (half) performance
1.559 TFLOPS (1:1)
FP32 (float) performance
1.559 TFLOPS
FP64 (double) performance
97.44 GFLOPS (1:16)

Clock Speeds

Base Clock
1082 MHz
Boost Clock
1218 MHz
Memory Clock
1500 MHz
6 Gbps effective

Render Config

Shading Units
640
TMUs
40
ROPs
16
Compute Units
10
L1 Cache
16 KB (per CU)
L2 Cache
512 KB

Board Design

Slot Width
Dual-slot
Thermal design power (TDP)
50 W
Display Connectors
No outputs
Power Connectors
None

API support

DirectX
12 (12_0)
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
Shader Model
6.4
Radeon RX 640 Mobile
AMD Radeon RX 640 Mobile: GPU Specs & Benchmarks