AMD Radeon 550X vs AMD Radeon HD 6450

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon 550X and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 's Advantages

Released 7 years and 11 months late

Boost Clock1218MHz

Larger VRAM bandwidth (112.0GB/s vs 25.60GB/s)

352 additional rendering cores

AMD Radeon HD 6450 's Advantages

Lower TDP (18W vs 50W)

Score

Benchmark

FP32 (float)

Radeon 550X +523%

1.247 TFLOPS

Radeon HD 6450

0.2 TFLOPS

Radeon 550X

VS

Radeon HD 6450

Graphics Card

Mar 2019

Release Date

Apr 2011

Polaris

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1082 MHz

Base Clock

-

1218 MHz

Boost Clock

-

1750 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

112.0GB/s

Bandwidth

25.60GB/s

Render Config

-

SM Count

-

8

Compute Units

2

512

Shading Units

160

32

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

Theoretical Performance

19.49 GPixel/s

Pixel Rate

2.500 GPixel/s

38.98 GTexel/s

Texture Rate

5.000 GTexel/s

1247 GFLOPS

FP16 (half)

-

1247 GFLOPS

FP32 (float)

200.0 GFLOPS

77.95 GFLOPS

FP64 (double)

-

Graphics Processor

Lexa

GPU Name

Caicos

Lexa PRO (215-0904018)

GPU Variant

Caicos PRO

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

2.2 billion

Transistors

0.37 billion

103 mm²

Die Size

67 mm²

Board Design

50W

TDP

18W

250 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

6.4

Shader Model

5.0

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