NVIDIA GeForce RTX 3090 vs AMD Radeon HD 6450 OEM

VS

NVIDIA GeForce RTX 3090

AMD Radeon HD 6450 OEM

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 3090 and 512MB VRAM Radeon HD 6450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3090 's Advantages

Released 9 years and 7 months late

Boost Clock1695MHz

More VRAM (24GB vs 512GB)

Larger VRAM bandwidth (936.2GB/s vs 8.528GB/s)

10336 additional rendering cores

AMD Radeon HD 6450 OEM 's Advantages

Lower TDP (18W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3090 +17690%

35.58 TFLOPS

Radeon HD 6450 OEM

0.2 TFLOPS

GeForce RTX 3090

VS

Radeon HD 6450 OEM

Graphics Card

Sep 2020

Release Date

Feb 2011

GeForce 30

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1395 MHz

Base Clock

-

1695 MHz

Boost Clock

-

1219 MHz

Memory Clock

533 MHz

Memory

24GB

Memory Size

512MB

GDDR6X

Memory Type

GDDR3

384bit

Memory Bus

64bit

936.2GB/s

Bandwidth

8.528GB/s

Render Config

-

Compute Units

2

82

SM Count

-

10496

Shading Units

160

328

TMUs

8

112

ROPs

4

328

Tensor Cores

-

82

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

6 MB

L2 Cache

128 KB

-

Theoretical Performance

189.8 GPixel/s

Pixel Rate

2.500 GPixel/s

556.0 GTexel/s

Texture Rate

5.000 GTexel/s

35.58 TFLOPS

FP16 (half)

-

35.58 TFLOPS

FP32 (float)

200.0 GFLOPS

556.0 GFLOPS

FP64 (double)

-

Board Design

350W

TDP

18W

750 W

Suggested PSU

200 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 12-pin

Power Connectors

None

Graphics Processor

GA102

GPU Name

Caicos

GA102-300-A1

GPU Variant

Junbonator

Ampere

Architecture

TeraScale 2

Samsung

Foundry

TSMC

8 nm

Process Size

40 nm

28.3 billion

Transistors

0.37 billion

628 mm²

Die Size

67 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

8.6

CUDA

-

6.6

Shader Model

5.0

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