NVIDIA GeForce RTX 4090D vs ATI Radeon HD 4855

VS

NVIDIA GeForce RTX 4090D ATI Radeon HD 4855

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090D 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 4090D 's Advantages

Released 13 years and 11 months late

Boost Clock2520MHz

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

13952 additional rendering cores

ATI Radeon HD 4855 's Advantages

Lower TDP (110W vs 425W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090D +9891%

73.54 TFLOPS

Radeon HD 4855

0.736 TFLOPS

GeForce RTX 4090D

VS

Radeon HD 4855

Graphics Card

Dec 2023

Release Date

Jan 2010

GeForce 40

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2280 MHz

Base Clock

-

2520 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

114

SM Count

-

Compute Units

8

14592

Shading Units

640

456

TMUs

32

176

ROPs

16

456

Tensor Cores

-

114

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

72 MB

L2 Cache

256 KB

Theoretical Performance

443.5 GPixel/s

Pixel Rate

9.200 GPixel/s

1149 GTexel/s

Texture Rate

18.40 GTexel/s

73.54 TFLOPS

FP16 (half)

-

73.54 TFLOPS

FP32 (float)

736.0 GFLOPS

1149 GFLOPS

FP64 (double)

147.2 GFLOPS

Graphics Processor

AD102

GPU Name

RV770

AD102-250-A1

GPU Variant

RV770 PRO (215-0669065)

Ada Lovelace

Architecture

TeraScale

TSMC

Foundry

TSMC

5 nm

Process Size

55 nm

76.3 billion

Transistors

0.956 billion

609 mm²

Die Size

256 mm²

Board Design

425W

TDP

110W

800 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 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

8.9

CUDA

-

6.7

Shader Model

4.1

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