AMD Radeon R9 380X vs NVIDIA GeForce GTX 660 Ti

VS

AMD Radeon R9 380X

NVIDIA GeForce GTX 660 Ti

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 380X and 2GB VRAM GeForce GTX 660 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 380X 's Advantages

Released 3 years and 3 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (182.4GB/s vs 144.2GB/s)

704 additional rendering cores

NVIDIA GeForce GTX 660 Ti 's Advantages

Boost Clock980MHz

Lower TDP (150W vs 190W)

Score

Benchmark

FP32 (float)

Radeon R9 380X +50%

3.973 TFLOPS

GeForce GTX 660 Ti

2.634 TFLOPS

3DMark Time Spy

Radeon R9 380X +87%

3050

GeForce GTX 660 Ti

1627

Radeon R9 380X

VS

GeForce GTX 660 Ti

Graphics Card

Nov 2015

Release Date

Aug 2012

Pirate Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

915 MHz

-

Boost Clock

980 MHz

1425 MHz

Memory Clock

1502 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

182.4GB/s

Bandwidth

144.2GB/s

Render Config

32

Compute Units

-

2048

Shading Units

1344

128

TMUs

112

32

ROPs

24

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

31.04 GPixel/s

Pixel Rate

27.44 GPixel/s

124.2 GTexel/s

Texture Rate

109.8 GTexel/s

3.973 TFLOPS

FP16 (half)

-

3.973 TFLOPS

FP32 (float)

2.634 TFLOPS

248.3 GFLOPS

FP64 (double)

109.8 GFLOPS

Board Design

190W

TDP

150W

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

Antigua

GPU Name

GK104

Antigua XT (215-0877016)

GPU Variant

GK104-300-KD-A2

GCN 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

3.54 billion

366 mm²

Die Size

294 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

6.3

Shader Model

5.1

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