AMD Radeon RX 7990 XTX vs NVIDIA GeForce RTX 4080 16 GB

VS

AMD Radeon RX 7990 XTX

NVIDIA GeForce RTX 4080 16 GB

We compared two Desktop platform GPUs: 24GB VRAM Radeon RX 7990 XTX and 16GB VRAM GeForce RTX 4080 16 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7990 XTX 's Advantages

Boost Clock has increased by 44% (3599MHz vs 2505MHz)

More VRAM (24GB vs 16GB)

Larger VRAM bandwidth (1152GB/s vs 716.8GB/s)

NVIDIA GeForce RTX 4080 16 GB 's Advantages

3584 additional rendering cores

Lower TDP (320W vs 405W)

Score

Benchmark

FP32 (float)

Radeon RX 7990 XTX +81%

88.45 TFLOPS

GeForce RTX 4080 16 GB

48.74 TFLOPS

Radeon RX 7990 XTX

VS

GeForce RTX 4080 16 GB

Graphics Card

Unknown

Release Date

Sep 2022

Navi III

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2500 MHz

Base Clock

2205 MHz

3599 MHz

Boost Clock

2505 MHz

3000 MHz

Memory Clock

1400 MHz

Memory

24GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6X

384bit

Memory Bus

256bit

1152GB/s

Bandwidth

716.8GB/s

Render Config

96

Compute Units

-

SM Count

76

6144

Shading Units

9728

384

TMUs

304

192

ROPs

112

-

Tensor Cores

304

96

RT Cores

76

256 KB per Array

L1 Cache

128 KB (per SM)

6 MB

L2 Cache

64 MB

192 MB

L3 Cache

-

Theoretical Performance

691.0 GPixel/s

Pixel Rate

280.6 GPixel/s

1382 GTexel/s

Texture Rate

761.5 GTexel/s

176.9 TFLOPS

FP16 (half)

48.74 TFLOPS

88.45 TFLOPS

FP32 (float)

48.74 TFLOPS

2.764 TFLOPS

FP64 (double)

761.5 GFLOPS

Board Design

405W

TDP

320W

800 W

Suggested PSU

700 W

1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

3x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Navi 31

GPU Name

AD103

Navi 31 XTX+

GPU Variant

AD103-300-A1

RDNA 3.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

5 nm

Process Size

4 nm

57.7 billion

Transistors

45.9 billion

529 mm²

Die Size

379 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

8.9

6.7

Shader Model

6.6

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