AMD Radeon RX 550 Mobile vs NVIDIA GeForce GT 640M Mac Edition

VS

AMD Radeon RX 550 Mobile

NVIDIA GeForce GT 640M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 550 Mobile and 512MB VRAM GeForce GT 640M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550 Mobile 's Advantages

Released 4 years and 5 months late

Boost Clock1287MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (96.00GB/s vs 40.00GB/s)

256 additional rendering cores

NVIDIA GeForce GT 640M Mac Edition 's Advantages

Lower TDP (32W vs 50W)

Score

Benchmark

FP32 (float)

Radeon RX 550 Mobile +187%

1.647 TFLOPS

GeForce GT 640M Mac Edition

0.572 TFLOPS

Radeon RX 550 Mobile

VS

GeForce GT 640M Mac Edition

Graphics Card

Jul 2017

Release Date

Feb 2013

Mobility Radeon

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1100 MHz

Base Clock

-

1287 MHz

Boost Clock

-

1500 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

96.00GB/s

Bandwidth

40.00GB/s

Render Config

10

Compute Units

-

640

Shading Units

384

40

TMUs

32

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

20.59 GPixel/s

Pixel Rate

5.960 GPixel/s

51.48 GTexel/s

Texture Rate

23.84 GTexel/s

1.647 TFLOPS

FP16 (half)

-

1.647 TFLOPS

FP32 (float)

572.2 GFLOPS

103.0 GFLOPS

FP64 (double)

23.84 GFLOPS

Board Design

50W

TDP

32W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Lexa

GPU Name

GK107

Lexa PRO (215-0904018)

GPU Variant

N13P-GS

GCN 4.0

Architecture

Kepler

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

1.27 billion

103 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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