AMD Radeon HD 7990 vs NVIDIA GeForce RTX 5090

VS

AMD Radeon HD 7990 NVIDIA GeForce RTX 5090

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 28GB VRAM GeForce RTX 5090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7990 's Advantages

Larger VRAM bandwidth (288.0GB/s vs 280.0GB/s)

Lower TDP (375W vs 500W)

NVIDIA GeForce RTX 5090 's Advantages

Released 11 years and 9 months late

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

More VRAM (28GB vs 3GB)

18432 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7990

4.096 TFLOPS

GeForce RTX 5090 +2419%

103.2 TFLOPS

Radeon HD 7990

VS

GeForce RTX 5090

Graphics Card

Apr 2013

Release Date

Jan 2025

Southern Islands

Generation

GeForce 50

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

950 MHz

Base Clock

2235 MHz

1000 MHz

Boost Clock

2520 MHz

1500 MHz

Memory Clock

2500 MHz

Memory

3GB

Memory Size

28GB

GDDR5

Memory Type

GDDR7

384bit

Memory Bus

448bit

288.0GB/s

Bandwidth

280.0GB/s

Render Config

-

SM Count

160

32

Compute Units

-

2048

Shading Units

20480

128

TMUs

640

32

ROPs

192

-

Tensor Cores

640

-

RT Cores

160

16 KB (per CU)

L1 Cache

128 KB (per SM)

768 KB

L2 Cache

88 MB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

483.8 GPixel/s

128.0 GTexel/s

Texture Rate

1613 GTexel/s

-

FP16 (half)

103.2 TFLOPS

4.096 TFLOPS

FP32 (float)

103.2 TFLOPS

1024 GFLOPS

FP64 (double)

1.613 TFLOPS

Graphics Processor

Malta

GPU Name

GB202

Malta XT (215-0849026)

GPU Variant

GB202

GCN 1.0

Architecture

Blackwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

0 nm

4.313 billion

Transistors

Unknown

365 mm²

Die Size

Unknown

Board Design

375W

TDP

500W

750 W

Suggested PSU

900 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

9.1

5.1

Shader Model

6.7

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