NVIDIA GeForce RTX 5080 vs ATI Radeon HD 5450

VS

NVIDIA GeForce RTX 5080

ATI Radeon HD 5450

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 5080 and 512MB VRAM Radeon HD 5450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5080 's Advantages

Released 14 years and 11 months late

Boost Clock2520MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (973.8GB/s vs 6.400GB/s)

10672 additional rendering cores

ATI Radeon HD 5450 's Advantages

Lower TDP (19W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 5080 +52005%

54.19 TFLOPS

Radeon HD 5450

0.104 TFLOPS

GeForce RTX 5080

VS

Radeon HD 5450

Graphics Card

Jan 2025

Release Date

Feb 2010

GeForce 50

Generation

Evergreen

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2235 MHz

Base Clock

-

2520 MHz

Boost Clock

-

2400 MHz

Memory Clock

400 MHz

Memory

16GB

Memory Size

512MB

GDDR7

Memory Type

DDR2

256bit

Memory Bus

64bit

973.8GB/s

Bandwidth

6.400GB/s

Render Config

-

Compute Units

2

84

SM Count

-

10752

Shading Units

80

336

TMUs

8

128

ROPs

4

336

Tensor Cores

-

84

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

64 MB

L2 Cache

128 KB

-

Theoretical Performance

322.6 GPixel/s

Pixel Rate

2.600 GPixel/s

846.7 GTexel/s

Texture Rate

5.200 GTexel/s

54.19 TFLOPS

FP16 (half)

-

54.19 TFLOPS

FP32 (float)

104.0 GFLOPS

846.7 GFLOPS

FP64 (double)

-

Board Design

350W

TDP

19W

750 W

Suggested PSU

200 W

1x HDMI 2.1 3x DisplayPort 2.1a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 16-pin

Power Connectors

None

Graphics Processor

GB203

GPU Name

Cedar

GB203-400-A1

GPU Variant

Cedar PRO

Blackwell 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

0

Process Size

40 nm

Unknown

Transistors

0.292 billion

377 mm²

Die Size

59 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

10.1

CUDA

-

6.8

Shader Model

5.0

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