AMD Radeon RX 550 640SP vs NVIDIA GeForce GTX 660 Ti

VS

AMD Radeon RX 550 640SP

NVIDIA GeForce GTX 660 Ti

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550 640SP 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 RX 550 640SP 's Advantages

Released 5 years and 2 months late

Boost Clock has increased by 9% (1071MHz vs 980MHz)

Lower TDP (60W vs 150W)

NVIDIA GeForce GTX 660 Ti 's Advantages

Larger VRAM bandwidth (144.2GB/s vs 96.00GB/s)

704 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 550 640SP

1.371 TFLOPS

GeForce GTX 660 Ti +92%

2.634 TFLOPS

Radeon RX 550 640SP

VS

GeForce GTX 660 Ti

Graphics Card

Oct 2017

Release Date

Aug 2012

Polaris

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1019 MHz

Base Clock

915 MHz

1071 MHz

Boost Clock

980 MHz

1500 MHz

Memory Clock

1502 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

192bit

96.00GB/s

Bandwidth

144.2GB/s

Render Config

10

Compute Units

-

640

Shading Units

1344

40

TMUs

112

16

ROPs

24

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

384 KB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

27.44 GPixel/s

42.84 GTexel/s

Texture Rate

109.8 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

2.634 TFLOPS

85.68 GFLOPS

FP64 (double)

109.8 GFLOPS

Board Design

60W

TDP

150W

250 W

Suggested PSU

450 W

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

Baffin

GPU Name

GK104

Baffin LE

GPU Variant

GK104-300-KD-A2

GCN 4.0

Architecture

Kepler

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

3.54 billion

123 mm²

Die Size

294 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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