NVIDIA GeForce GT 740 OEM vs NVIDIA GeForce GT 640 OEM

VS

NVIDIA GeForce GT 740 OEM

NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 740 OEM and 2GB VRAM GeForce GT 640 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 740 OEM 's Advantages

Released 3 years late

Larger VRAM bandwidth (80.19GB/s vs 28.51GB/s)

NVIDIA GeForce GT 640 OEM 's Advantages

More VRAM (2GB vs 1024GB)

Lower TDP (50W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GT 740 OEM +26%

0.773 TFLOPS

GeForce GT 640 OEM

0.612 TFLOPS

GeForce GT 740 OEM

VS

GeForce GT 640 OEM

Graphics Card

Apr 2015

Release Date

Apr 2012

GeForce 700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1253 MHz

Memory Clock

891 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

80.19GB/s

Bandwidth

28.51GB/s

Render Config

-

384

Shading Units

384

32

TMUs

32

16

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

8.048 GPixel/s

Pixel Rate

6.376 GPixel/s

32.19 GTexel/s

Texture Rate

25.50 GTexel/s

-

772.6 GFLOPS

FP32 (float)

612.1 GFLOPS

32.19 GFLOPS

FP64 (double)

25.50 GFLOPS

Board Design

65W

TDP

50W

250 W

Suggested PSU

250 W

No outputs

Outputs

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

None

Power Connectors

None

Graphics Processor

GK106

GPU Name

GK107

-

GPU Variant

GK107-320-A2

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.54 billion

Transistors

1.27 billion

221 mm²

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.0

CUDA

3.0

5.1

Shader Model

5.1

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