AMD Radeon RX Vega M GL vs NVIDIA GeForce GT 645M

VS

AMD Radeon RX Vega M GL

NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX Vega M GL and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX Vega M GL 's Advantages

Released 5 years and 4 months late

Boost Clock1011MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (179.2GB/s vs 28.80GB/s)

896 additional rendering cores

NVIDIA GeForce GT 645M 's Advantages

Lower TDP (32W vs 65W)

Score

Benchmark

FP32 (float)

Radeon RX Vega M GL +375%

2.588 TFLOPS

GeForce GT 645M

0.544 TFLOPS

Radeon RX Vega M GL

VS

GeForce GT 645M

Graphics Card

Feb 2018

Release Date

Oct 2012

Vega

Generation

GeForce 600M

Mobile

Type

Mobile

IGP

Bus Interface

PCIe 3.0 x16

Clock Speeds

931 MHz

Base Clock

-

1011 MHz

Boost Clock

-

700 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

2GB

HBM2

Memory Type

DDR3

1024bit

Memory Bus

128bit

179.2GB/s

Bandwidth

28.80GB/s

Render Config

20

Compute Units

-

1280

Shading Units

384

80

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

32.35 GPixel/s

Pixel Rate

5.672 GPixel/s

80.88 GTexel/s

Texture Rate

22.69 GTexel/s

2.588 TFLOPS

FP16 (half)

-

2.588 TFLOPS

FP32 (float)

544.5 GFLOPS

161.8 GFLOPS

FP64 (double)

22.69 GFLOPS

Board Design

65W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Polaris 22

GPU Name

GK107

VegaM XL (D715A714)

GPU Variant

N13P-GS

GCN 4.0

Architecture

Kepler

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5 billion

Transistors

1.27 billion

208 mm²

Die Size

118 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

6.4

Shader Model

5.1

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