AMD Radeon RX 6800 vs AMD Radeon RX 6650 XT

VS

AMD Radeon RX 6800

AMD Radeon RX 6650 XT

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 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 6800 's Advantages

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (512.0GB/s vs 280.3GB/s)

1792 additional rendering cores

AMD Radeon RX 6650 XT 's Advantages

Released 1 years and 7 months late

Boost Clock has increased by 25% (2635MHz vs 2105MHz)

Lower TDP (176W vs 250W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 +49%

16.17 TFLOPS

Radeon RX 6650 XT

10.79 TFLOPS

3DMark Time Spy

Radeon RX 6800 +64%

16233

Radeon RX 6650 XT

9891

Shadow of the Tomb Raider 2160p

Radeon RX 6800 +71%

65

Radeon RX 6650 XT

38

Shadow of the Tomb Raider 1440p

Radeon RX 6800 +51%

117

Radeon RX 6650 XT

77

Shadow of the Tomb Raider 1080p

Radeon RX 6800 +41%

168

Radeon RX 6650 XT

119

Cyberpunk 2077 2160p

Radeon RX 6800 +70%

51

Radeon RX 6650 XT

30

Cyberpunk 2077 1440p

Radeon RX 6800 +62%

60

Radeon RX 6650 XT

37

Cyberpunk 2077 1080p

Radeon RX 6800 +47%

87

Radeon RX 6650 XT

59

Battlefield 5 2160p

Radeon RX 6800 +65%

91

Radeon RX 6650 XT

55

Battlefield 5 1440p

Radeon RX 6800 +60%

178

Radeon RX 6650 XT

111

Battlefield 5 1080p

Radeon RX 6800 +23%

194

Radeon RX 6650 XT

157

GTA 5 2160p

Radeon RX 6800 +53%

98

Radeon RX 6650 XT

64

GTA 5 1440p

Radeon RX 6800 +48%

126

Radeon RX 6650 XT

85

GTA 5 1080p

Radeon RX 6800 +13%

170

Radeon RX 6650 XT

150

Radeon RX 6800

VS

Radeon RX 6650 XT

Graphics Card

Oct 2020

Release Date

May 2022

Navi II

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

1700 MHz

Base Clock

2055 MHz

2105 MHz

Boost Clock

2635 MHz

2000 MHz

Memory Clock

2190 MHz

Memory

16GB

Memory Size

8GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

128bit

512.0GB/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

128 MB

L3 Cache

32 MB

Theoretical Performance

202.1 GPixel/s

Pixel Rate

168.6 GPixel/s

505.2 GTexel/s

Texture Rate

337.3 GTexel/s

32.33 TFLOPS

FP16 (half)

21.59 TFLOPS

16.17 TFLOPS

FP32 (float)

10.79 TFLOPS

1010 GFLOPS

FP64 (double)

674.6 GFLOPS

Board Design

250W

TDP

176W

600 W

Suggested PSU

450 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Navi 21

GPU Name

Navi 23

Navi 21 XL (215-121000187)

GPU Variant

Navi 23 KXT (215-130000136)

RDNA 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

7 nm

26.8 billion

Transistors

11.06 billion

520 mm²

Die Size

237 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.3

-

6.5

Shader Model

6.5

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