AMD Radeon HD 8990 OEM vs NVIDIA GeForce RTX 4090

VS

AMD Radeon HD 8990 OEM NVIDIA GeForce RTX 4090

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8990 OEM and 24GB VRAM GeForce RTX 4090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8990 OEM 's Advantages

Lower TDP (375W vs 450W)

NVIDIA GeForce RTX 4090 's Advantages

Released 9 years and 5 months late

Boost Clock has increased by 152% (2520MHz vs 1000MHz)

More VRAM (24GB vs 3GB)

Larger VRAM bandwidth (1010GB/s vs 288.0GB/s)

14336 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8990 OEM

4.096 TFLOPS

GeForce RTX 4090 +1916%

82.58 TFLOPS

Radeon HD 8990 OEM

VS

GeForce RTX 4090

Graphics Card

Apr 2013

Release Date

Sep 2022

Sea Islands

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

950 MHz

Base Clock

2235 MHz

1000 MHz

Boost Clock

2520 MHz

1500 MHz

Memory Clock

1313 MHz

Memory

3GB

Memory Size

24GB

GDDR5

Memory Type

GDDR6X

384bit

Memory Bus

384bit

288.0GB/s

Bandwidth

1010GB/s

Render Config

-

SM Count

128

32

Compute Units

-

2048

Shading Units

16384

128

TMUs

512

32

ROPs

176

-

Tensor Cores

512

-

RT Cores

128

16 KB (per CU)

L1 Cache

128 KB (per SM)

768 KB

L2 Cache

72 MB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

443.5 GPixel/s

128.0 GTexel/s

Texture Rate

1290 GTexel/s

-

FP16 (half)

82.58 TFLOPS

4.096 TFLOPS

FP32 (float)

82.58 TFLOPS

1024 GFLOPS

FP64 (double)

1290 GFLOPS

Graphics Processor

Malta

GPU Name

AD102

Malta XT (215-0849026)

GPU Variant

AD102-300-A1

GCN 1.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

4.313 billion

Transistors

76.3 billion

365 mm²

Die Size

609 mm²

Board Design

375W

TDP

450W

750 W

Suggested PSU

850 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 16-pin

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

8.9

5.1

Shader Model

6.7

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