NVIDIA GeForce GTX 660 Ti vs NVIDIA GeForce GTX 780 Ti 6 GB

VS

NVIDIA GeForce GTX 660 Ti

NVIDIA GeForce GTX 780 Ti 6 GB

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 6GB VRAM GeForce GTX 780 Ti 6 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Ti 's Advantages

Boost Clock has increased by 6% (980MHz vs 928MHz)

Lower TDP (150W vs 250W)

NVIDIA GeForce GTX 780 Ti 6 GB 's Advantages

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (336.6GB/s vs 144.2GB/s)

1536 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Ti

2.634 TFLOPS

GeForce GTX 780 Ti 6 GB +102%

5.345 TFLOPS

GeForce GTX 660 Ti

VS

GeForce GTX 780 Ti 6 GB

Graphics Card

Aug 2012

Release Date

Unknown

GeForce 600

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

915 MHz

Base Clock

875 MHz

980 MHz

Boost Clock

928 MHz

1502 MHz

Memory Clock

1753 MHz

Memory

2GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

384bit

144.2GB/s

Bandwidth

336.6GB/s

Render Config

-

1344

Shading Units

2880

112

TMUs

240

24

ROPs

48

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

384 KB

L2 Cache

1536 KB

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

55.68 GPixel/s

109.8 GTexel/s

Texture Rate

222.7 GTexel/s

-

2.634 TFLOPS

FP32 (float)

5.345 TFLOPS

109.8 GFLOPS

FP64 (double)

222.7 GFLOPS

Board Design

150W

TDP

250W

450 W

Suggested PSU

600 W

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

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GK104

GPU Name

GK110B

GK104-300-KD-A2

GPU Variant

-

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

7.08 billion

294 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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