NVIDIA GeForce RTX 5090 vs AMD Radeon HD 7990

VS

NVIDIA GeForce RTX 5090

AMD Radeon HD 7990

We compared two Desktop platform GPUs: 32GB VRAM GeForce RTX 5090 and 3GB VRAM Radeon HD 7990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5090 's Advantages

Released 11 years and 9 months late

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

More VRAM (32GB vs 3GB)

Larger VRAM bandwidth (1.52TB/s vs 288.0GB/s)

19712 additional rendering cores

AMD Radeon HD 7990 's Advantages

Lower TDP (375W vs 500W)

Score

Benchmark

FP32 (float)

GeForce RTX 5090 +2578%

109.7 TFLOPS

Radeon HD 7990

4.096 TFLOPS

GeForce RTX 5090

VS

Radeon HD 7990

Graphics Card

Jan 2025

Release Date

Apr 2013

GeForce 50

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2235 MHz

Base Clock

950 MHz

2520 MHz

Boost Clock

1000 MHz

1875 MHz

Memory Clock

1500 MHz

Memory

32GB

Memory Size

3GB

GDDR7

Memory Type

GDDR5

512bit

Memory Bus

384bit

1.52TB/s

Bandwidth

288.0GB/s

Render Config

-

Compute Units

32

170

SM Count

-

21760

Shading Units

2048

680

TMUs

128

192

ROPs

32

680

Tensor Cores

-

170

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

88 MB

L2 Cache

768 KB

-

Theoretical Performance

483.8 GPixel/s

Pixel Rate

32.00 GPixel/s

1714 GTexel/s

Texture Rate

128.0 GTexel/s

109.7 TFLOPS

FP16 (half)

-

109.7 TFLOPS

FP32 (float)

4.096 TFLOPS

1.714 TFLOPS

FP64 (double)

1024 GFLOPS

Board Design

500W

TDP

375W

900 W

Suggested PSU

750 W

1x HDMI 2.13x DisplayPort 1.4a

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 16-pin

Power Connectors

2x 8-pin

Graphics Processor

GB202

GPU Name

Malta

GB202-400-A1

GPU Variant

Malta XT (215-0849026)

Blackwell 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

Unknown

Transistors

4.313 billion

Unknown

Die Size

365 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

10.1

CUDA

-

6.8

Shader Model

5.1

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