AMD Radeon 550X Mobile vs NVIDIA GeForce GT 640M LE

VS

AMD Radeon 550X Mobile NVIDIA GeForce GT 640M LE

We compared two Mobile platform GPUs: 4GB VRAM Radeon 550X Mobile and 2GB VRAM GeForce GT 640M LE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X Mobile 's Advantages

Released 5 years and 11 months late

Boost Clock1287MHz

More VRAM (4GB vs 2GB)

544 additional rendering cores

NVIDIA GeForce GT 640M LE 's Advantages

Larger VRAM bandwidth (50.24GB/s vs 48.00GB/s)

Lower TDP (32W vs 50W)

Score

Benchmark

FP32 (float)

Radeon 550X Mobile +469%

1.647 TFLOPS

GeForce GT 640M LE

0.289 TFLOPS

Radeon 550X Mobile

VS

GeForce GT 640M LE

Graphics Card

Apr 2018

Release Date

May 2012

Mobility Radeon

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1100 MHz

Base Clock

-

1287 MHz

Boost Clock

-

1500 MHz

Memory Clock

785 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

50.24GB/s

Render Config

-

SM Count

2

10

Compute Units

-

640

Shading Units

96

40

TMUs

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

Theoretical Performance

20.59 GPixel/s

Pixel Rate

3.012 GPixel/s

51.48 GTexel/s

Texture Rate

12.05 GTexel/s

1.647 TFLOPS

FP16 (half)

-

1.647 TFLOPS

FP32 (float)

289.0 GFLOPS

103.0 GFLOPS

FP64 (double)

24.08 GFLOPS

Graphics Processor

Polaris 23

GPU Name

GF108

Polaris 23 MXT

GPU Variant

-

GCN 4.0

Architecture

Fermi

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

2.2 billion

Transistors

0.585 billion

103 mm²

Die Size

116 mm²

Board Design

50W

TDP

32W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

6.4

Shader Model

5.1

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