AMD Radeon RX 550 640SP vs AMD Radeon 550

VS

AMD Radeon RX 550 640SP

AMD Radeon 550

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550 640SP and 2GB VRAM Radeon 550 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 6 months late

Larger VRAM bandwidth (96.00GB/s vs 56.00GB/s)

128 additional rendering cores

AMD Radeon 550 's Advantages

Boost Clock has increased by 10% (1183MHz vs 1071MHz)

Lower TDP (50W vs 60W)

Score

Benchmark

FP32 (float)

Radeon RX 550 640SP +13%

1.371 TFLOPS

Radeon 550

1.211 TFLOPS

Radeon RX 550 640SP

VS

Radeon 550

Graphics Card

Oct 2017

Release Date

Apr 2017

Polaris

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1019 MHz

Base Clock

1100 MHz

1071 MHz

Boost Clock

1183 MHz

1500 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

96.00GB/s

Bandwidth

56.00GB/s

Render Config

10

Compute Units

8

-

640

Shading Units

512

40

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

18.93 GPixel/s

42.84 GTexel/s

Texture Rate

37.86 GTexel/s

1371 GFLOPS

FP16 (half)

1211 GFLOPS

1371 GFLOPS

FP32 (float)

1211 GFLOPS

85.68 GFLOPS

FP64 (double)

75.71 GFLOPS

Board Design

60W

TDP

50W

250 W

Suggested PSU

250 W

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

Outputs

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

None

Power Connectors

None

Graphics Processor

Baffin

GPU Name

Lexa

Baffin LE

GPU Variant

Lexa PRO (215-0904018)

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

3 billion

Transistors

2.2 billion

123 mm²

Die Size

103 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.3

-

6.4

Shader Model

6.7

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