NVIDIA GeForce RTX 3090 Ti vs ATI Radeon HD 4855

VS

NVIDIA GeForce RTX 3090 Ti

ATI Radeon HD 4855

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 3090 Ti and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3090 Ti 's Advantages

Released 12 years late

Boost Clock1860MHz

More VRAM (24GB vs 512GB)

Larger VRAM bandwidth (1008GB/s vs 115.2GB/s)

10112 additional rendering cores

ATI Radeon HD 4855 's Advantages

Lower TDP (110W vs 450W)

Score

Benchmark

FP32 (float)

GeForce RTX 3090 Ti +5334%

40 TFLOPS

Radeon HD 4855

0.736 TFLOPS

GeForce RTX 3090 Ti

VS

Radeon HD 4855

Graphics Card

Jan 2022

Release Date

Jan 2010

GeForce 30

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1560 MHz

Base Clock

-

1860 MHz

Boost Clock

-

1313 MHz

Memory Clock

900 MHz

Memory

24GB

Memory Size

512MB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

256bit

1008GB/s

Bandwidth

115.2GB/s

Render Config

-

Compute Units

8

84

SM Count

-

10752

Shading Units

640

336

TMUs

32

112

ROPs

16

336

Tensor Cores

-

84

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

256 KB

-

Theoretical Performance

208.3 GPixel/s

Pixel Rate

9.200 GPixel/s

625.0 GTexel/s

Texture Rate

18.40 GTexel/s

40.00 TFLOPS

FP16 (half)

-

40.00 TFLOPS

FP32 (float)

736.0 GFLOPS

625.0 GFLOPS

FP64 (double)

147.2 GFLOPS

Board Design

450W

TDP

110W

850 W

Suggested PSU

300 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 16-pin

Power Connectors

1x 6-pin

Graphics Processor

GA102

GPU Name

RV770

GA102-350-A1

GPU Variant

RV770 PRO (215-0669065)

Ampere

Architecture

TeraScale

Samsung

Foundry

TSMC

8 nm

Process Size

55 nm

28.3 billion

Transistors

0.956 billion

628 mm²

Die Size

256 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

1.3

Vulkan

N/A

8.6

CUDA

-

6.6

Shader Model

4.1

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