NVIDIA GeForce GTX 260M vs NVIDIA GeForce GT 640M LE

VS

NVIDIA GeForce GTX 260M

NVIDIA GeForce GT 640M LE

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GTX 260M 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 260M 's Advantages

Larger VRAM bandwidth (60.80GB/s vs 50.24GB/s)

16 additional rendering cores

NVIDIA GeForce GT 640M LE 's Advantages

Released 3 years and 2 months late

More VRAM (2GB vs 1024GB)

Lower TDP (32W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GTX 260M +6%

0.308 TFLOPS

GeForce GT 640M LE

0.289 TFLOPS

GeForce GTX 260M

VS

GeForce GT 640M LE

Graphics Card

Mar 2009

Release Date

May 2012

GeForce 200M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

950 MHz

Memory Clock

785 MHz

Memory

1024MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

128bit

60.80GB/s

Bandwidth

50.24GB/s

Render Config

-

14

SM Count

2

112

Shading Units

96

56

TMUs

16

ROPs

4

-

L1 Cache

64 KB (per SM)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

8.800 GPixel/s

Pixel Rate

3.012 GPixel/s

30.80 GTexel/s

Texture Rate

12.05 GTexel/s

-

308.0 GFLOPS

FP32 (float)

289.0 GFLOPS

-

FP64 (double)

24.08 GFLOPS

Board Design

65W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

G92

GPU Name

GF108

N10E-GT

GPU Variant

-

Tesla

Architecture

Fermi

TSMC

Foundry

TSMC

65 nm

Process Size

40 nm

0.754 billion

Transistors

0.585 billion

324 mm²

Die Size

116 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

1.1

CUDA

2.1

4.0

Shader Model

5.1

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