NVIDIA GeForce GTX 660 vs NVIDIA GeForce GTX TITAN Z

VS

NVIDIA GeForce GTX 660

NVIDIA GeForce GTX TITAN Z

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 6GB VRAM GeForce GTX TITAN Z to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 's Advantages

Boost Clock has increased by 18% (1032MHz vs 876MHz)

Lower TDP (140W vs 375W)

NVIDIA GeForce GTX TITAN Z 's Advantages

Released 1 years and 8 months late

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (336.0GB/s vs 144.2GB/s)

1920 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660

1.981 TFLOPS

GeForce GTX TITAN Z +154%

5.046 TFLOPS

GeForce GTX 660

VS

GeForce GTX TITAN Z

Graphics Card

Sep 2012

Release Date

May 2014

GeForce 600

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

980 MHz

Base Clock

705 MHz

1032 MHz

Boost Clock

876 MHz

1502 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

384bit

144.2GB/s

Bandwidth

336.0GB/s

Render Config

-

960

Shading Units

2880

80

TMUs

240

24

ROPs

48

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

384 KB

L2 Cache

1536 KB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

52.56 GPixel/s

82.56 GTexel/s

Texture Rate

210.2 GTexel/s

-

1.981 TFLOPS

FP32 (float)

5.046 TFLOPS

82.56 GFLOPS

FP64 (double)

1.682 TFLOPS

Board Design

140W

TDP

375W

300 W

Suggested PSU

750 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

GK106

GPU Name

GK110B

GK106-400-A1

GPU Variant

GK110-350-B1

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.54 billion

Transistors

7.08 billion

221 mm²

Die Size

561 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.0

CUDA

3.5

5.1

Shader Model

5.1

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