NVIDIA GeForce GT 640 OEM Rebrand vs NVIDIA GeForce GT 440 OEM

VS

NVIDIA GeForce GT 640 OEM Rebrand

NVIDIA GeForce GT 440 OEM

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 1536MB VRAM GeForce GT 440 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Released 1 years and 6 months late

NVIDIA GeForce GT 440 OEM 's Advantages

Larger VRAM bandwidth (43.20GB/s vs 38.40GB/s)

Lower TDP (65W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

GeForce GT 440 OEM +12%

0.467 TFLOPS

GeForce GT 640 OEM Rebrand

VS

GeForce GT 440 OEM

Graphics Card

Apr 2012

Release Date

Oct 2010

GeForce 600

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

900 MHz

Memory

1536MB

Memory Size

1536MB

DDR3

Memory Type

DDR3

192bit

Memory Bus

192bit

38.40GB/s

Bandwidth

43.20GB/s

Render Config

-

3

SM Count

3

144

Shading Units

144

24

TMUs

24

ROPs

24

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

384 KB

L2 Cache

384 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

4.860 GPixel/s

17.28 GTexel/s

Texture Rate

19.44 GTexel/s

-

414.7 GFLOPS

FP32 (float)

466.6 GFLOPS

34.56 GFLOPS

FP64 (double)

38.88 GFLOPS

Board Design

75W

TDP

65W

250 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

GF116

GPU Name

GF106

GF116-150-A1

GPU Variant

-

Fermi 2.0

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.17 billion

Transistors

1.17 billion

238 mm²

Die Size

238 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

2.1

5.1

Shader Model

5.1

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