AMD Radeon RX 7900 XT vs NVIDIA GeForce RTX 5080

VS

AMD Radeon RX 7900 XT

NVIDIA GeForce RTX 5080

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 16GB VRAM GeForce RTX 5080 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)

Lower TDP (300W vs 350W)

NVIDIA GeForce RTX 5080 's Advantages

Released 2 years and 2 months late

Boost Clock has increased by 5% (2520MHz vs 2394MHz)

Larger VRAM bandwidth (973.8GB/s vs 800.0GB/s)

5376 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 7900 XT

51.48 TFLOPS

GeForce RTX 5080 +5%

54.19 TFLOPS

Radeon RX 7900 XT

VS

GeForce RTX 5080

Graphics Card

Nov 2022

Release Date

Jan 2025

Navi III

Generation

GeForce 50

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

1387 MHz

Base Clock

2235 MHz

2394 MHz

Boost Clock

2520 MHz

2500 MHz

Memory Clock

2400 MHz

Memory

20GB

Memory Size

16GB

GDDR6

Memory Type

GDDR7

320bit

Memory Bus

256bit

800.0GB/s

Bandwidth

973.8GB/s

Render Config

84

Compute Units

-

SM Count

84

5376

Shading Units

10752

336

TMUs

336

192

ROPs

128

-

Tensor Cores

336

84

RT Cores

84

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

322.6 GPixel/s

804.4 GTexel/s

Texture Rate

846.7 GTexel/s

103.0 TFLOPS

FP16 (half)

54.19 TFLOPS

51.48 TFLOPS

FP32 (float)

54.19 TFLOPS

1.609 TFLOPS

FP64 (double)

846.7 GFLOPS

Board Design

300W

TDP

350W

700 W

Suggested PSU

750 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 2.1a

2x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Navi 31

GPU Name

GB203

Navi 31 XT (215-145000156)

GPU Variant

GB203-400-A1

RDNA 3.0

Architecture

Blackwell 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

0

57.7 billion

Transistors

Unknown

529 mm²

Die Size

377 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

10.1

6.7

Shader Model

6.8

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