AMD Radeon RX 7800 XT vs AMD Radeon RX 6650 XT

VS

AMD Radeon RX 7800 XT

AMD Radeon RX 6650 XT

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 XT and 8GB VRAM Radeon RX 6650 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 XT 's Advantages

Released 1 years and 3 months late

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (624.1GB/s vs 280.3GB/s)

1792 additional rendering cores

AMD Radeon RX 6650 XT 's Advantages

Boost Clock has increased by 8% (2635MHz vs 2430MHz)

Lower TDP (176W vs 263W)

Score

Benchmark

FP32 (float)

Radeon RX 7800 XT +245%

37.32 TFLOPS

Radeon RX 6650 XT

10.79 TFLOPS

3DMark Time Spy

Radeon RX 7800 XT +102%

20031

Radeon RX 6650 XT

9891

Blender

Radeon RX 7800 XT +104%

2652

Radeon RX 6650 XT

1299

Shadow of the Tomb Raider 2160p

Radeon RX 7800 XT +115%

82

Radeon RX 6650 XT

38

Shadow of the Tomb Raider 1440p

Radeon RX 7800 XT +105%

158

Radeon RX 6650 XT

77

Shadow of the Tomb Raider 1080p

Radeon RX 7800 XT +96%

234

Radeon RX 6650 XT

119

Cyberpunk 2077 2160p

Radeon RX 7800 XT +26%

38

Radeon RX 6650 XT

30

Cyberpunk 2077 1440p

Radeon RX 7800 XT +121%

82

Radeon RX 6650 XT

37

Cyberpunk 2077 1080p

Radeon RX 7800 XT +113%

126

Radeon RX 6650 XT

59

GTA 5 2160p

Radeon RX 7800 XT +118%

140

Radeon RX 6650 XT

64

GTA 5 1440p

Radeon RX 7800 XT +64%

140

Radeon RX 6650 XT

85

GTA 5 1080p

Radeon RX 7800 XT +26%

190

Radeon RX 6650 XT

150

Radeon RX 7800 XT

VS

Radeon RX 6650 XT

Graphics Card

Aug 2023

Release Date

May 2022

Navi III

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

1295 MHz

Base Clock

2055 MHz

2430 MHz

Boost Clock

2635 MHz

2438 MHz

Memory Clock

2190 MHz

Memory

16GB

Memory Size

8GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

128bit

624.1GB/s

Bandwidth

280.3GB/s

Render Config

60

Compute Units

32

-

3840

Shading Units

2048

240

TMUs

128

96

ROPs

64

-

60

RT Cores

32

128 KB per Array

L1 Cache

128 KB per Array

4 MB

L2 Cache

2 MB

64 MB

L3 Cache

32 MB

Theoretical Performance

233.3 GPixel/s

Pixel Rate

168.6 GPixel/s

583.2 GTexel/s

Texture Rate

337.3 GTexel/s

74.65 TFLOPS

FP16 (half)

21.59 TFLOPS

37.32 TFLOPS

FP32 (float)

10.79 TFLOPS

1166 GFLOPS

FP64 (double)

674.6 GFLOPS

Board Design

263W

TDP

176W

600 W

Suggested PSU

450 W

1x HDMI 2.1a 3x DisplayPort 2.1

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Navi 32

GPU Name

Navi 23

Navi 32 XT (215-180000006)

GPU Variant

Navi 23 KXT (215-130000136)

RDNA 3.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

7 nm

28.1 billion

Transistors

11.06 billion

346 mm²

Die Size

237 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.2

OpenCL

2.1

1.3

Vulkan

1.3

-

6.7

Shader Model

6.5

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