NVIDIA GeForce 920A vs NVIDIA GeForce GT 640M LE

VS

NVIDIA GeForce 920A

NVIDIA GeForce GT 640M LE

We compared two Mobile platform GPUs: 2GB VRAM GeForce 920A and 2GB VRAM GeForce GT 640M LE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 920A 's Advantages

Released 2 years and 10 months late

288 additional rendering cores

NVIDIA GeForce GT 640M LE 's Advantages

Larger VRAM bandwidth (50.24GB/s vs 16.02GB/s)

Lower TDP (32W vs 33W)

Score

Benchmark

FP32 (float)

GeForce 920A +153%

0.733 TFLOPS

GeForce GT 640M LE

0.289 TFLOPS

GeForce 920A

VS

GeForce GT 640M LE

Graphics Card

Mar 2015

Release Date

May 2012

GeForce 900A

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1001 MHz

Memory Clock

785 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

50.24GB/s

Render Config

-

SM Count

2

384

Shading Units

96

32

TMUs

16

8

ROPs

4

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

7.632 GPixel/s

Pixel Rate

3.012 GPixel/s

30.53 GTexel/s

Texture Rate

12.05 GTexel/s

-

732.7 GFLOPS

FP32 (float)

289.0 GFLOPS

30.53 GFLOPS

FP64 (double)

24.08 GFLOPS

Board Design

33W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK208B

GPU Name

GF108

N16V-GM

GPU Variant

-

Kepler 2.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.02 billion

Transistors

0.585 billion

87 mm²

Die Size

116 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.5

CUDA

2.1

5.1

Shader Model

5.1

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