NVIDIA GeForce GTX 960 vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA GeForce GTX 960 NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 960 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 's Advantages

Released 2 years and 9 months late

Boost Clock1178MHz

More VRAM (2GB vs 1GB)

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

736 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 120W)

Score

Benchmark

FP32 (float)

GeForce GTX 960 +169%

2.413 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

GeForce GTX 960

VS

GeForce GT 645 OEM

Graphics Card

Jan 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

1127 MHz

Base Clock

-

1178 MHz

Boost Clock

-

1753 MHz

Memory Clock

957 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

192bit

112.2GB/s

Bandwidth

91.87GB/s

Render Config

-

SM Count

6

-

Compute Units

-

1024

Shading Units

288

64

TMUs

48

32

ROPs

24

-

Tensor Cores

-

RT Cores

-

48 KB (per SMM)

L1 Cache

64 KB (per SM)

1024 KB

L2 Cache

384 KB

Theoretical Performance

37.70 GPixel/s

Pixel Rate

9.312 GPixel/s

75.39 GTexel/s

Texture Rate

37.25 GTexel/s

-

FP16 (half)

-

2.413 TFLOPS

FP32 (float)

894.0 GFLOPS

75.39 GFLOPS

FP64 (double)

74.50 GFLOPS

Graphics Processor

GM206

GPU Name

GF114

GM206-300-A1

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

Board Design

120W

TDP

102W

300 W

Suggested PSU

300 W

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin

Power Connectors

-

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

6.4

Shader Model

5.1

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