AMD Radeon RX 640 Mobile vs AMD Radeon RX 5500M

VS

AMD Radeon RX 640 Mobile

AMD Radeon RX 5500M

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 4GB VRAM Radeon RX 5500M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 640 Mobile 's Advantages

Lower TDP (50W vs 85W)

AMD Radeon RX 5500M 's Advantages

Boost Clock has increased by 35% (1645MHz vs 1218MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 48.00GB/s)

768 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile

1.559 TFLOPS

Radeon RX 5500M +197%

4.632 TFLOPS

Radeon RX 640 Mobile

VS

Radeon RX 5500M

Graphics Card

May 2019

Release Date

Oct 2019

Mobility Radeon

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x8

Clock Speeds

1082 MHz

Base Clock

1375 MHz

1218 MHz

Boost Clock

1645 MHz

1500 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

224.0GB/s

Render Config

10

Compute Units

22

-

640

Shading Units

1408

40

TMUs

88

16

ROPs

32

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

2 MB

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

52.64 GPixel/s

48.72 GTexel/s

Texture Rate

144.8 GTexel/s

1.559 TFLOPS

FP16 (half)

9.265 TFLOPS

1.559 TFLOPS

FP32 (float)

4.632 TFLOPS

97.44 GFLOPS

FP64 (double)

289.5 GFLOPS

Board Design

50W

TDP

85W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 23

GPU Name

Navi 14

Polaris 23 XT

GPU Variant

Navi 14 XTM

GCN 4.0

Architecture

RDNA 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

7 nm

2.2 billion

Transistors

6.4 billion

103 mm²

Die Size

158 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.3

-

6.4

Shader Model

6.5

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