NVIDIA GeForce GT 640 OEM vs NVIDIA GeForce GT 440 OEM

VS

NVIDIA GeForce GT 640 OEM NVIDIA GeForce GT 440 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 OEM 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 's Advantages

Released 1 years and 6 months late

More VRAM (2GB vs 1GB)

240 additional rendering cores

Lower TDP (50W vs 65W)

NVIDIA GeForce GT 440 OEM 's Advantages

Larger VRAM bandwidth (43.20GB/s vs 28.51GB/s)

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM +31%

0.612 TFLOPS

GeForce GT 440 OEM

0.467 TFLOPS

GeForce GT 640 OEM

VS

GeForce GT 440 OEM

Graphics Card

Apr 2012

Release Date

Oct 2010

GeForce 600

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

891 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1536MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

192bit

28.51GB/s

Bandwidth

43.20GB/s

Render Config

-

SM Count

3

-

Compute Units

-

384

Shading Units

144

32

TMUs

24

16

ROPs

24

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

384 KB

Theoretical Performance

6.376 GPixel/s

Pixel Rate

4.860 GPixel/s

25.50 GTexel/s

Texture Rate

19.44 GTexel/s

-

FP16 (half)

-

612.1 GFLOPS

FP32 (float)

466.6 GFLOPS

25.50 GFLOPS

FP64 (double)

38.88 GFLOPS

Graphics Processor

GK107

GPU Name

GF106

GK107-320-A2

GPU Variant

-

Kepler

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

1.17 billion

118 mm²

Die Size

238 mm²

Board Design

50W

TDP

65W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

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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