NVIDIA GeForce GTX 960 OEM vs NVIDIA GeForce GT 640

VS

NVIDIA GeForce GTX 960 OEM

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 960 OEM and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 960 OEM 's Advantages

Released 3 years and 5 months late

Boost Clock1201MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (112.2GB/s vs 28.51GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 960 OEM +254%

2.46 TFLOPS

GeForce GT 640

0.693 TFLOPS

GeForce GTX 960 OEM

VS

GeForce GT 640

Graphics Card

Nov 2015

Release Date

Jun 2012

GeForce 900

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1176 MHz

Base Clock

-

1201 MHz

Boost Clock

-

1753 MHz

Memory Clock

891 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

112.2GB/s

Bandwidth

28.51GB/s

Render Config

-

1024

Shading Units

384

64

TMUs

32

ROPs

16

-

48 KB (per SMM)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

38.43 GPixel/s

Pixel Rate

7.216 GPixel/s

76.86 GTexel/s

Texture Rate

28.86 GTexel/s

-

2.460 TFLOPS

FP32 (float)

692.7 GFLOPS

76.86 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

Unknown

TDP

65W

200 W

Suggested PSU

250 W

No outputs

Outputs

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

None

Power Connectors

None

Graphics Processor

GM206

GPU Name

GK107

GTX 960 OEM

GPU Variant

GK107-300-A2

Maxwell 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.94 billion

Transistors

1.27 billion

228 mm²

Die Size

118 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.2

CUDA

3.0

6.7

Shader Model

5.1

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