NVIDIA GeForce RTX 5080 vs ATI Radeon HD 3450 PCI

VS

NVIDIA GeForce RTX 5080

ATI Radeon HD 3450 PCI

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 5080 and 512MB VRAM Radeon HD 3450 PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5080 's Advantages

Released 17 years late

Boost Clock2520MHz

More VRAM (16GB vs 512GB)

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

10712 additional rendering cores

ATI Radeon HD 3450 PCI 's Advantages

Lower TDP (25W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 5080 +112795%

54.19 TFLOPS

Radeon HD 3450 PCI

0.048 TFLOPS

GeForce RTX 5080

VS

Radeon HD 3450 PCI

Graphics Card

Jan 2025

Release Date

Jan 2008

GeForce 50

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCI

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

40

336

TMUs

4

128

ROPs

4

336

Tensor Cores

-

84

RT Cores

-

128 KB (per SM)

L1 Cache

-

64 MB

L2 Cache

64 KB

-

Theoretical Performance

322.6 GPixel/s

Pixel Rate

2.400 GPixel/s

846.7 GTexel/s

Texture Rate

2.400 GTexel/s

54.19 TFLOPS

FP16 (half)

-

54.19 TFLOPS

FP32 (float)

48.00 GFLOPS

846.7 GFLOPS

FP64 (double)

-

Board Design

350W

TDP

25W

750 W

Suggested PSU

200 W

1x HDMI 2.1 3x DisplayPort 2.1a

Outputs

1x DVI 1x S-Video

1x 16-pin

Power Connectors

None

Graphics Processor

GB203

GPU Name

RV620

GB203-400-A1

GPU Variant

RV620 LE

Blackwell 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

0

Process Size

55 nm

Unknown

Transistors

0.181 billion

377 mm²

Die Size

67 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.3

Vulkan

N/A

10.1

CUDA

-

6.8

Shader Model

4.1

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