NVIDIA GeForce GTX 960 OEM vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA GeForce GTX 960 OEM

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 960 OEM and 1024MB VRAM GeForce GT 645 OEM 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 7 months late

Boost Clock1201MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (112.2GB/s vs 91.87GB/s)

736 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 960 OEM +175%

2.46 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

GeForce GTX 960 OEM

VS

GeForce GT 645 OEM

Graphics Card

Nov 2015

Release Date

Apr 2012

GeForce 900

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1176 MHz

Base Clock

-

1201 MHz

Boost Clock

-

1753 MHz

Memory Clock

957 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

192bit

112.2GB/s

Bandwidth

91.87GB/s

Render Config

-

SM Count

6

1024

Shading Units

288

64

TMUs

48

32

ROPs

24

-

48 KB (per SMM)

L1 Cache

64 KB (per SM)

1024 KB

L2 Cache

384 KB

-

Theoretical Performance

38.43 GPixel/s

Pixel Rate

9.312 GPixel/s

76.86 GTexel/s

Texture Rate

37.25 GTexel/s

-

2.460 TFLOPS

FP32 (float)

894.0 GFLOPS

76.86 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

Unknown

TDP

102W

200 W

Suggested PSU

300 W

No outputs

Outputs

2x DVI 1x mini-HDMI 1.3a

None

Power Connectors

-

Graphics Processor

GM206

GPU Name

GF114

GTX 960 OEM

GPU Variant

-

Maxwell 2.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.94 billion

Transistors

1.95 billion

228 mm²

Die Size

332 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

1.3

Vulkan

N/A

5.2

CUDA

2.1

6.7

Shader Model

5.1

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