ATI Radeon HD 5450 PCI vs AMD Radeon RX 6800 XT

VS

ATI Radeon HD 5450 PCI

AMD Radeon RX 6800 XT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 5450 PCI and 16GB VRAM Radeon RX 6800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5450 PCI 's Advantages

Lower TDP (19W vs 300W)

AMD Radeon RX 6800 XT 's Advantages

Released 10 years and 8 months late

Boost Clock2250MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (512.0GB/s vs 5.328GB/s)

4528 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 5450 PCI

0.104 TFLOPS

Radeon RX 6800 XT +19842%

20.74 TFLOPS

Radeon HD 5450 PCI

VS

Radeon RX 6800 XT

Graphics Card

Feb 2010

Release Date

Oct 2020

Evergreen

Generation

Navi II

Desktop

Type

Desktop

PCI

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1825 MHz

-

Boost Clock

2250 MHz

333 MHz

Memory Clock

2000 MHz

Memory

512MB

Memory Size

16GB

DDR2

Memory Type

GDDR6

64bit

Memory Bus

256bit

5.328GB/s

Bandwidth

512.0GB/s

Render Config

2

Compute Units

72

-

80

Shading Units

4608

8

TMUs

288

4

ROPs

128

-

RT Cores

72

8 KB (per CU)

L1 Cache

128 KB per Array

128 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

2.600 GPixel/s

Pixel Rate

288.0 GPixel/s

5.200 GTexel/s

Texture Rate

648.0 GTexel/s

-

FP16 (half)

41.47 TFLOPS

104.0 GFLOPS

FP32 (float)

20.74 TFLOPS

-

FP64 (double)

1296 GFLOPS

Board Design

19W

TDP

300W

200 W

Suggested PSU

700 W

1x DVI 1x HDMI 1.3a

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

None

Power Connectors

2x 8-pin

Graphics Processor

Cedar

GPU Name

Navi 21

Cedar PRO

GPU Variant

Navi 21 XT (215-121000177)

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

0.292 billion

Transistors

26.8 billion

59 mm²

Die Size

520 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.3

-

5.0

Shader Model

6.5

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