AMD Radeon RX 640 Mobile vs AMD Radeon RX Vega 56 Mobile

VS

AMD Radeon RX 640 Mobile AMD Radeon RX Vega 56 Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 8GB VRAM Radeon RX Vega 56 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 640 Mobile 's Advantages

Released 11 months late

Lower TDP (50W vs 120W)

AMD Radeon RX Vega 56 Mobile 's Advantages

Boost Clock has increased by 7% (1301MHz vs 1218MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (409.6GB/s vs 48.00GB/s)

2944 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile

1.559 TFLOPS

Radeon RX Vega 56 Mobile +498%

9.326 TFLOPS

Radeon RX 640 Mobile

VS

Radeon RX Vega 56 Mobile

Graphics Card

May 2019

Release Date

Jun 2018

Mobility Radeon

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1082 MHz

Base Clock

1138 MHz

1218 MHz

Boost Clock

1301 MHz

1500 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

HBM2

64bit

Memory Bus

2048bit

48.00GB/s

Bandwidth

409.6GB/s

Render Config

-

SM Count

-

10

Compute Units

56

640

Shading Units

3584

40

TMUs

224

16

ROPs

64

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

4 MB

Theoretical Performance

19.49 GPixel/s

Pixel Rate

83.26 GPixel/s

48.72 GTexel/s

Texture Rate

291.4 GTexel/s

1.559 TFLOPS

FP16 (half)

18.65 TFLOPS

1.559 TFLOPS

FP32 (float)

9.326 TFLOPS

97.44 GFLOPS

FP64 (double)

582.8 GFLOPS

Graphics Processor

Polaris 23

GPU Name

Vega 10

Polaris 23 XT

GPU Variant

Vega 10 XL (215-0894216)

GCN 4.0

Architecture

GCN 5.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

2.2 billion

Transistors

12.5 billion

103 mm²

Die Size

495 mm²

Board Design

50W

TDP

120W

-

Suggested PSU

-

No outputs

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

None

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2

-

CUDA

-

6.4

Shader Model

6.4

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