AMD Radeon RX 7900 XT vs NVIDIA GeForce RTX 4080 16 GB

VS

AMD Radeon RX 7900 XT

NVIDIA GeForce RTX 4080 16 GB

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT 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 7900 XT 's Advantages

More VRAM (20GB vs 16GB)

Larger VRAM bandwidth (800.0GB/s vs 716.8GB/s)

Lower TDP (300W vs 320W)

NVIDIA GeForce RTX 4080 16 GB 's Advantages

Boost Clock has increased by 5% (2505MHz vs 2394MHz)

4352 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 7900 XT +5%

51.48 TFLOPS

GeForce RTX 4080 16 GB

48.74 TFLOPS

Radeon RX 7900 XT

VS

GeForce RTX 4080 16 GB

Graphics Card

Nov 2022

Release Date

Sep 2022

Navi III

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1387 MHz

Base Clock

2205 MHz

2394 MHz

Boost Clock

2505 MHz

2500 MHz

Memory Clock

1400 MHz

Memory

20GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6X

320bit

Memory Bus

256bit

800.0GB/s

Bandwidth

716.8GB/s

Render Config

84

Compute Units

-

SM Count

76

5376

Shading Units

9728

336

TMUs

304

192

ROPs

112

-

Tensor Cores

304

84

RT Cores

76

256 KB per Array

L1 Cache

128 KB (per SM)

6 MB

L2 Cache

64 MB

80 MB

L3 Cache

-

Theoretical Performance

459.6 GPixel/s

Pixel Rate

280.6 GPixel/s

804.4 GTexel/s

Texture Rate

761.5 GTexel/s

103.0 TFLOPS

FP16 (half)

48.74 TFLOPS

51.48 TFLOPS

FP32 (float)

48.74 TFLOPS

1.609 TFLOPS

FP64 (double)

761.5 GFLOPS

Board Design

300W

TDP

320W

700 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

2x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Navi 31

GPU Name

AD103

Navi 31 XT (215-145000156)

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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