NVIDIA GeForce GTX 960 OEM vs NVIDIA GeForce GT 640 Rev. 2

VS

NVIDIA GeForce GTX 960 OEM NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 960 OEM and 1024MB VRAM GeForce GT 640 Rev. 2 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 2 years and 6 months late

Boost Clock1201MHz

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (112.2GB/s vs 40.06GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 960 OEM +206%

2.46 TFLOPS

GeForce GT 640 Rev. 2

0.803 TFLOPS

GeForce GTX 960 OEM

VS

GeForce GT 640 Rev. 2

Graphics Card

Nov 2015

Release Date

May 2013

GeForce 900

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

1176 MHz

Base Clock

-

1201 MHz

Boost Clock

-

1753 MHz

Memory Clock

1252 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

112.2GB/s

Bandwidth

40.06GB/s

Render Config

-

SM Count

-

Compute Units

-

1024

Shading Units

384

64

TMUs

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

48 KB (per SMM)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

512 KB

Theoretical Performance

38.43 GPixel/s

Pixel Rate

8.368 GPixel/s

76.86 GTexel/s

Texture Rate

33.47 GTexel/s

-

FP16 (half)

-

2.460 TFLOPS

FP32 (float)

803.3 GFLOPS

76.86 GFLOPS

FP64 (double)

33.47 GFLOPS

Graphics Processor

GM206

GPU Name

GK208

GTX 960 OEM

GPU Variant

GK208-400-A1

Maxwell 2.0

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.94 billion

Transistors

1.02 billion

228 mm²

Die Size

87 mm²

Board Design

Unknown

TDP

49W

200 W

Suggested PSU

200 W

No outputs

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

None

Power Connectors

None

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

3.5

6.7

Shader Model

5.1

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