AMD Radeon R9 Nano vs NVIDIA GeForce GTX 660 Ti

VS

AMD Radeon R9 Nano

NVIDIA GeForce GTX 660 Ti

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 Nano 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 Nano 's Advantages

Released 3 years late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 144.2GB/s)

2752 additional rendering cores

NVIDIA GeForce GTX 660 Ti 's Advantages

Boost Clock980MHz

Lower TDP (150W vs 175W)

Score

Benchmark

FP32 (float)

Radeon R9 Nano +211%

8.192 TFLOPS

GeForce GTX 660 Ti

2.634 TFLOPS

3DMark Time Spy

Radeon R9 Nano +183%

4607

GeForce GTX 660 Ti

1627

Radeon R9 Nano

VS

GeForce GTX 660 Ti

Graphics Card

Aug 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

500 MHz

Memory Clock

1502 MHz

Memory

4GB

Memory Size

2GB

HBM

Memory Type

GDDR5

4096bit

Memory Bus

192bit

512.0GB/s

Bandwidth

144.2GB/s

Render Config

64

Compute Units

-

4096

Shading Units

1344

256

TMUs

112

64

ROPs

24

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

384 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

27.44 GPixel/s

256.0 GTexel/s

Texture Rate

109.8 GTexel/s

8.192 TFLOPS

FP16 (half)

-

8.192 TFLOPS

FP32 (float)

2.634 TFLOPS

512.0 GFLOPS

FP64 (double)

109.8 GFLOPS

Board Design

175W

TDP

150W

450 W

Suggested PSU

450 W

1x HDMI 1.4a 3x DisplayPort 1.2

Outputs

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

1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Fiji

GPU Name

GK104

Fiji XT CA (215-0862120)

GPU Variant

GK104-300-KD-A2

GCN 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

8.9 billion

Transistors

3.54 billion

596 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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