NVIDIA GeForce RTX 4080 vs AMD Radeon RX 6650 XT

VS

NVIDIA GeForce RTX 4080

AMD Radeon RX 6650 XT

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 4080 and 8GB VRAM Radeon RX 6650 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4080 's Advantages

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (716.8GB/s vs 280.3GB/s)

7680 additional rendering cores

AMD Radeon RX 6650 XT 's Advantages

Boost Clock has increased by 5% (2635MHz vs 2505MHz)

Lower TDP (176W vs 320W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 +351%

48.74 TFLOPS

Radeon RX 6650 XT

10.79 TFLOPS

3DMark Time Spy

GeForce RTX 4080 +185%

28272

Radeon RX 6650 XT

9891

Shadow of the Tomb Raider 2160p

GeForce RTX 4080 +247%

132

Radeon RX 6650 XT

38

Shadow of the Tomb Raider 1440p

GeForce RTX 4080 +219%

246

Radeon RX 6650 XT

77

Shadow of the Tomb Raider 1080p

GeForce RTX 4080 +152%

300

Radeon RX 6650 XT

119

Cyberpunk 2077 2160p

GeForce RTX 4080 +143%

73

Radeon RX 6650 XT

30

Cyberpunk 2077 1440p

GeForce RTX 4080 +227%

121

Radeon RX 6650 XT

37

Cyberpunk 2077 1080p

GeForce RTX 4080 +205%

180

Radeon RX 6650 XT

59

Battlefield 5 2160p

GeForce RTX 4080 +123%

123

Radeon RX 6650 XT

55

Battlefield 5 1440p

GeForce RTX 4080 +48%

165

Radeon RX 6650 XT

111

Battlefield 5 1080p

GeForce RTX 4080 +19%

188

Radeon RX 6650 XT

157

GTA 5 2160p

GeForce RTX 4080 +96%

126

Radeon RX 6650 XT

64

GTA 5 1440p

GeForce RTX 4080 +112%

181

Radeon RX 6650 XT

85

GTA 5 1080p

GeForce RTX 4080 +21%

182

Radeon RX 6650 XT

150

GeForce RTX 4080

VS

Radeon RX 6650 XT

Graphics Card

Sep 2022

Release Date

May 2022

GeForce 40

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

2205 MHz

Base Clock

2055 MHz

2505 MHz

Boost Clock

2635 MHz

1400 MHz

Memory Clock

2190 MHz

Memory

16GB

Memory Size

8GB

GDDR6X

Memory Type

GDDR6

256bit

Memory Bus

128bit

716.8GB/s

Bandwidth

280.3GB/s

Render Config

-

Compute Units

32

76

SM Count

-

9728

Shading Units

2048

304

TMUs

128

112

ROPs

64

304

Tensor Cores

-

76

RT Cores

32

128 KB (per SM)

L1 Cache

128 KB per Array

64 MB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

280.6 GPixel/s

Pixel Rate

168.6 GPixel/s

761.5 GTexel/s

Texture Rate

337.3 GTexel/s

48.74 TFLOPS

FP16 (half)

21.59 TFLOPS

48.74 TFLOPS

FP32 (float)

10.79 TFLOPS

761.5 GFLOPS

FP64 (double)

674.6 GFLOPS

Board Design

320W

TDP

176W

700 W

Suggested PSU

450 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 16-pin

Power Connectors

1x 8-pin

Graphics Processor

AD103

GPU Name

Navi 23

AD103-300-A1

GPU Variant

Navi 23 KXT (215-130000136)

Ada Lovelace

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

7 nm

45.9 billion

Transistors

11.06 billion

379 mm²

Die Size

237 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.3

8.9

CUDA

-

6.7

Shader Model

6.5

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