NVIDIA GeForce GTX 660 Ti vs AMD Radeon R9 380

VS

NVIDIA GeForce GTX 660 Ti

AMD Radeon R9 380

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 2GB VRAM Radeon R9 380 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 Clock980MHz

Lower TDP (150W vs 190W)

AMD Radeon R9 380 's Advantages

Released 2 years and 10 months late

Larger VRAM bandwidth (176.0GB/s vs 144.2GB/s)

448 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Ti

2.634 TFLOPS

Radeon R9 380 +31%

3.476 TFLOPS

3DMark Time Spy

GeForce GTX 660 Ti

1627

Radeon R9 380 +71%

2794

GeForce GTX 660 Ti

VS

Radeon R9 380

Graphics Card

Aug 2012

Release Date

Jun 2015

GeForce 600

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

915 MHz

Base Clock

-

980 MHz

Boost Clock

-

1502 MHz

Memory Clock

1375 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

256bit

144.2GB/s

Bandwidth

176.0GB/s

Render Config

-

Compute Units

28

-

1344

Shading Units

1792

112

TMUs

112

24

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

512 KB

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

31.04 GPixel/s

109.8 GTexel/s

Texture Rate

108.6 GTexel/s

-

FP16 (half)

3.476 TFLOPS

2.634 TFLOPS

FP32 (float)

3.476 TFLOPS

109.8 GFLOPS

FP64 (double)

217.3 GFLOPS

Board Design

150W

TDP

190W

450 W

Suggested PSU

450 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

2x 6-pin

Graphics Processor

GK104

GPU Name

Antigua

GK104-300-KD-A2

GPU Variant

Antigua PRO (215-0877000)

Kepler

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

5 billion

294 mm²

Die Size

366 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

6.3

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