NVIDIA GeForce GTX 765M vs NVIDIA GeForce GT 640M LE

VS

NVIDIA GeForce GTX 765M NVIDIA GeForce GT 640M LE

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 765M 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 GTX 765M 's Advantages

Released 1 years late

Boost Clock863MHz

Larger VRAM bandwidth (64.13GB/s vs 50.24GB/s)

672 additional rendering cores

NVIDIA GeForce GT 640M LE 's Advantages

Lower TDP (32W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GTX 765M +358%

1.326 TFLOPS

GeForce GT 640M LE

0.289 TFLOPS

GeForce GTX 765M

VS

GeForce GT 640M LE

Graphics Card

May 2013

Release Date

May 2012

GeForce 700M

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

797 MHz

Base Clock

-

863 MHz

Boost Clock

-

1002 MHz

Memory Clock

785 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.13GB/s

Bandwidth

50.24GB/s

Render Config

-

SM Count

2

-

Compute Units

-

768

Shading Units

96

64

TMUs

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

Theoretical Performance

13.81 GPixel/s

Pixel Rate

3.012 GPixel/s

55.23 GTexel/s

Texture Rate

12.05 GTexel/s

-

FP16 (half)

-

1326 GFLOPS

FP32 (float)

289.0 GFLOPS

55.23 GFLOPS

FP64 (double)

24.08 GFLOPS

Graphics Processor

GK106

GPU Name

GF108

N14E-GE-B-A1

GPU Variant

-

Kepler

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.54 billion

Transistors

0.585 billion

221 mm²

Die Size

116 mm²

Board Design

75W

TDP

32W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

2.1

5.1

Shader Model

5.1

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