AMD Radeon RX 550X vs AMD Radeon R7 450 OEM

VS

AMD Radeon RX 550X AMD Radeon R7 450 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 550X and 2GB VRAM Radeon R7 450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X 's Advantages

Released 2 years and 6 months late

Boost Clock1183MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (96.00GB/s vs 72.00GB/s)

Lower TDP (50W vs 65W)

Score

Benchmark

FP32 (float)

Radeon RX 550X +27%

1.211 TFLOPS

Radeon R7 450 OEM

0.947 TFLOPS

Radeon RX 550X

VS

Radeon R7 450 OEM

Graphics Card

Dec 2018

Release Date

Jun 2016

Polaris

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1100 MHz

Base Clock

-

1183 MHz

Boost Clock

-

1500 MHz

Memory Clock

1125 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

96.00GB/s

Bandwidth

72.00GB/s

Render Config

-

SM Count

-

8

Compute Units

8

512

Shading Units

512

32

TMUs

32

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

18.93 GPixel/s

Pixel Rate

14.80 GPixel/s

37.86 GTexel/s

Texture Rate

29.60 GTexel/s

1211 GFLOPS

FP16 (half)

-

1211 GFLOPS

FP32 (float)

947.2 GFLOPS

75.71 GFLOPS

FP64 (double)

59.20 GFLOPS

Graphics Processor

Lexa

GPU Name

Cape Verde

Lexa PRO (215-0904018)

GPU Variant

Cape Verde PRO2

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

1.5 billion

103 mm²

Die Size

123 mm²

Board Design

50W

TDP

65W

250 W

Suggested PSU

250 W

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

Outputs

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

None

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1 (1.2)

1.2

Vulkan

1.2.170

-

CUDA

-

6.4

Shader Model

6.5 (5.1)

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