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

VS

NVIDIA GeForce GT 640M LE AMD Radeon 550X Mobile

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

Main Differences

NVIDIA GeForce GT 640M LE 's Advantages

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

Lower TDP (32W vs 50W)

AMD Radeon 550X Mobile 's Advantages

Released 5 years and 11 months late

Boost Clock1287MHz

More VRAM (4GB vs 2GB)

544 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640M LE

0.289 TFLOPS

Radeon 550X Mobile +469%

1.647 TFLOPS

GeForce GT 640M LE

VS

Radeon 550X Mobile

Graphics Card

May 2012

Release Date

Apr 2018

GeForce 600M

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1287 MHz

785 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

50.24GB/s

Bandwidth

48.00GB/s

Render Config

2

SM Count

-

Compute Units

10

96

Shading Units

640

16

TMUs

40

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

3.012 GPixel/s

Pixel Rate

20.59 GPixel/s

12.05 GTexel/s

Texture Rate

51.48 GTexel/s

-

FP16 (half)

1.647 TFLOPS

289.0 GFLOPS

FP32 (float)

1.647 TFLOPS

24.08 GFLOPS

FP64 (double)

103.0 GFLOPS

Graphics Processor

GF108

GPU Name

Polaris 23

-

GPU Variant

Polaris 23 MXT

Fermi

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

0.585 billion

Transistors

2.2 billion

116 mm²

Die Size

103 mm²

Board Design

32W

TDP

50W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.1

OpenCL

2.1

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

6.4

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