AMD Radeon 550X 640SP vs AMD Radeon RX 550 640SP

VS

AMD Radeon 550X 640SP AMD Radeon RX 550 640SP

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 2GB VRAM Radeon RX 550 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 640SP 's Advantages

Released 6 months late

More VRAM (4GB vs 2GB)

Lower TDP (50W vs 60W)

AMD Radeon RX 550 640SP 's Advantages

Larger VRAM bandwidth (96.00GB/s vs 48.00GB/s)

Score

Benchmark

FP32 (float)

Radeon 550X 640SP

1.371 TFLOPS

Radeon RX 550 640SP

1.371 TFLOPS

Radeon 550X 640SP

VS

Radeon RX 550 640SP

Graphics Card

Apr 2018

Release Date

Oct 2017

Polaris

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1019 MHz

Base Clock

1019 MHz

1071 MHz

Boost Clock

1071 MHz

1500 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

96.00GB/s

Render Config

-

SM Count

-

10

Compute Units

10

640

Shading Units

640

40

TMUs

40

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

Theoretical Performance

17.14 GPixel/s

Pixel Rate

17.14 GPixel/s

42.84 GTexel/s

Texture Rate

42.84 GTexel/s

1371 GFLOPS

FP16 (half)

1371 GFLOPS

FP32 (float)

1371 GFLOPS

85.68 GFLOPS

FP64 (double)

85.68 GFLOPS

Graphics Processor

Lexa

GPU Name

Baffin

Lexa PRO (215-0904018)

GPU Variant

Baffin LE

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

2.2 billion

Transistors

3 billion

103 mm²

Die Size

123 mm²

Board Design

50W

TDP

60W

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 Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2

-

CUDA

-

6.4

Shader Model

6.4

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