AMD Radeon RX 560 XT vs NVIDIA GeForce GTX 660

VS

AMD Radeon RX 560 XT

NVIDIA GeForce GTX 660

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 560 XT and 2GB VRAM GeForce GTX 660 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 560 XT 's Advantages

Released 6 years and 6 months late

Boost Clock has increased by 19% (1226MHz vs 1032MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 144.2GB/s)

832 additional rendering cores

NVIDIA GeForce GTX 660 's Advantages

Lower TDP (140W vs 150W)

Score

Benchmark

FP32 (float)

Radeon RX 560 XT +121%

4.394 TFLOPS

GeForce GTX 660

1.981 TFLOPS

Radeon RX 560 XT

VS

GeForce GTX 660

Graphics Card

Mar 2019

Release Date

Sep 2012

Polaris

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1074 MHz

Base Clock

980 MHz

1226 MHz

Boost Clock

1032 MHz

1750 MHz

Memory Clock

1502 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

224.0GB/s

Bandwidth

144.2GB/s

Render Config

28

Compute Units

-

1792

Shading Units

960

112

TMUs

80

32

ROPs

24

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

384 KB

-

Theoretical Performance

39.23 GPixel/s

Pixel Rate

20.64 GPixel/s

137.3 GTexel/s

Texture Rate

82.56 GTexel/s

4.394 TFLOPS

FP16 (half)

-

4.394 TFLOPS

FP32 (float)

1.981 TFLOPS

274.6 GFLOPS

FP64 (double)

82.56 GFLOPS

Board Design

150W

TDP

140W

450 W

Suggested PSU

300 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Ellesmere

GPU Name

GK106

Polaris 10 LE1

GPU Variant

GK106-400-A1

GCN 4.0

Architecture

Kepler

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

2.54 billion

232 mm²

Die Size

221 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

6.4

Shader Model

5.1

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