NVIDIA GeForce RTX 4090D vs AMD Radeon HD 7950

VS

NVIDIA GeForce RTX 4090D

AMD Radeon HD 7950

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090D and 3GB VRAM Radeon HD 7950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090D 's Advantages

Released 11 years and 11 months late

Boost Clock2520MHz

More VRAM (24GB vs 3GB)

Larger VRAM bandwidth (1008GB/s vs 240.0GB/s)

12800 additional rendering cores

AMD Radeon HD 7950 's Advantages

Lower TDP (200W vs 425W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090D +2465%

73.54 TFLOPS

Radeon HD 7950

2.867 TFLOPS

GeForce RTX 4090D

VS

Radeon HD 7950

Graphics Card

Dec 2023

Release Date

Jan 2012

GeForce 40

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2280 MHz

Base Clock

-

2520 MHz

Boost Clock

-

1313 MHz

Memory Clock

1250 MHz

Memory

24GB

Memory Size

3GB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

384bit

1008GB/s

Bandwidth

240.0GB/s

Render Config

-

Compute Units

28

114

SM Count

-

14592

Shading Units

1792

456

TMUs

112

176

ROPs

32

456

Tensor Cores

-

114

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

72 MB

L2 Cache

768 KB

-

Theoretical Performance

443.5 GPixel/s

Pixel Rate

25.60 GPixel/s

1149 GTexel/s

Texture Rate

89.60 GTexel/s

73.54 TFLOPS

FP16 (half)

-

73.54 TFLOPS

FP32 (float)

2.867 TFLOPS

1149 GFLOPS

FP64 (double)

716.8 GFLOPS

Board Design

425W

TDP

200W

800 W

Suggested PSU

550 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

1x 16-pin

Power Connectors

2x 6-pin

Graphics Processor

AD102

GPU Name

Tahiti

AD102-250-A1

GPU Variant

Tahiti PRO (215-0821056)

Ada Lovelace

Architecture

GCN 1.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

76.3 billion

Transistors

4.313 billion

609 mm²

Die Size

352 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

8.9

CUDA

-

6.7

Shader Model

5.1

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