AMD Radeon RX 550X vs AMD Radeon HD 8950 OEM

VS

AMD Radeon RX 550X

AMD Radeon HD 8950 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 550X and 3GB VRAM Radeon HD 8950 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 5 years and 11 months late

Boost Clock has increased by 28% (1183MHz vs 925MHz)

More VRAM (4GB vs 3GB)

Lower TDP (50W vs 200W)

AMD Radeon HD 8950 OEM 's Advantages

Larger VRAM bandwidth (240.0GB/s vs 96.00GB/s)

1280 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 550X

1.211 TFLOPS

Radeon HD 8950 OEM +173%

3.315 TFLOPS

Radeon RX 550X

VS

Radeon HD 8950 OEM

Graphics Card

Dec 2018

Release Date

Jan 2013

Polaris

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1100 MHz

Base Clock

850 MHz

1183 MHz

Boost Clock

925 MHz

1500 MHz

Memory Clock

1250 MHz

Memory

4GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

96.00GB/s

Bandwidth

240.0GB/s

Render Config

8

Compute Units

28

-

512

Shading Units

1792

32

TMUs

112

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

768 KB

-

Theoretical Performance

18.93 GPixel/s

Pixel Rate

29.60 GPixel/s

37.86 GTexel/s

Texture Rate

103.6 GTexel/s

1211 GFLOPS

FP16 (half)

-

1211 GFLOPS

FP32 (float)

3.315 TFLOPS

75.71 GFLOPS

FP64 (double)

828.8 GFLOPS

Board Design

50W

TDP

200W

250 W

Suggested PSU

550 W

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

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

Lexa

GPU Name

Tahiti

Lexa PRO (215-0904018)

GPU Variant

Tahiti PRO (215-0821056)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

4.313 billion

103 mm²

Die Size

352 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

6.4

Shader Model

5.1

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