AMD Radeon 550X 640SP vs ATI Radeon HD 5450 PCI

VS

AMD Radeon 550X 640SP ATI Radeon HD 5450 PCI

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 512MB VRAM Radeon HD 5450 PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 640SP 's Advantages

Released 8 years and 2 months late

Boost Clock1071MHz

Larger VRAM bandwidth (48.00GB/s vs 5.328GB/s)

560 additional rendering cores

ATI Radeon HD 5450 PCI 's Advantages

Lower TDP (19W vs 50W)

Score

Benchmark

FP32 (float)

Radeon 550X 640SP +1218%

1.371 TFLOPS

Radeon HD 5450 PCI

0.104 TFLOPS

Radeon 550X 640SP

VS

Radeon HD 5450 PCI

Graphics Card

Apr 2018

Release Date

Feb 2010

Polaris

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCI

Clock Speeds

1019 MHz

Base Clock

-

1071 MHz

Boost Clock

-

1500 MHz

Memory Clock

333 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

64bit

Memory Bus

64bit

48.00GB/s

Bandwidth

5.328GB/s

Render Config

-

SM Count

-

10

Compute Units

2

640

Shading Units

80

40

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

17.14 GPixel/s

Pixel Rate

2.600 GPixel/s

42.84 GTexel/s

Texture Rate

5.200 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

104.0 GFLOPS

85.68 GFLOPS

FP64 (double)

-

Graphics Processor

Lexa

GPU Name

Cedar

Lexa PRO (215-0904018)

GPU Variant

Cedar PRO

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

2.2 billion

Transistors

0.292 billion

103 mm²

Die Size

59 mm²

Board Design

50W

TDP

19W

250 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a

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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