AMD Radeon RX 6600 vs AMD Radeon RX 6700 XT

VS

AMD Radeon RX 6600

AMD Radeon RX 6700 XT

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 and 12GB VRAM Radeon RX 6700 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 's Advantages

Released 7 months late

Lower TDP (132W vs 230W)

AMD Radeon RX 6700 XT 's Advantages

Boost Clock has increased by 4% (2581MHz vs 2491MHz)

More VRAM (12GB vs 8GB)

Larger VRAM bandwidth (384.0GB/s vs 224.0GB/s)

768 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600

8.928 TFLOPS

Radeon RX 6700 XT +47%

13.21 TFLOPS

3DMark Time Spy

Radeon RX 6600

8084

Radeon RX 6700 XT +58%

12779

Shadow of the Tomb Raider 2160p

Radeon RX 6600

34

Radeon RX 6700 XT +52%

52

Shadow of the Tomb Raider 1440p

Radeon RX 6600

71

Radeon RX 6700 XT +35%

96

Shadow of the Tomb Raider 1080p

Radeon RX 6600

126

Radeon RX 6700 XT +12%

142

Cyberpunk 2077 2160p

Radeon RX 6600

24

Radeon RX 6700 XT +70%

41

Cyberpunk 2077 1440p

Radeon RX 6600

31

Radeon RX 6700 XT +58%

49

Cyberpunk 2077 1080p

Radeon RX 6600

50

Radeon RX 6700 XT +48%

74

Battlefield 5 2160p

Radeon RX 6600

44

Radeon RX 6700 XT +72%

76

Battlefield 5 1440p

Radeon RX 6600

98

Radeon RX 6700 XT +46%

144

Battlefield 5 1080p

Radeon RX 6600

127

Radeon RX 6700 XT +51%

193

GTA 5 2160p

Radeon RX 6600

60

Radeon RX 6700 XT +38%

83

GTA 5 1440p

Radeon RX 6600

66

Radeon RX 6700 XT +57%

104

GTA 5 1080p

Radeon RX 6600 +9%

182

Radeon RX 6700 XT

166

Radeon RX 6600

VS

Radeon RX 6700 XT

Graphics Card

Oct 2021

Release Date

Mar 2021

Navi II

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1626 MHz

Base Clock

2321 MHz

2491 MHz

Boost Clock

2581 MHz

1750 MHz

Memory Clock

2000 MHz

Memory

8GB

Memory Size

12GB

GDDR6

Memory Type

GDDR6

128bit

Memory Bus

192bit

224.0GB/s

Bandwidth

384.0GB/s

Render Config

28

Compute Units

40

-

1792

Shading Units

2560

112

TMUs

160

64

ROPs

64

-

28

RT Cores

40

128 KB per Array

L1 Cache

128 KB per Array

2 MB

L2 Cache

3 MB

32 MB

L3 Cache

96 MB

Theoretical Performance

159.4 GPixel/s

Pixel Rate

165.2 GPixel/s

279.0 GTexel/s

Texture Rate

413.0 GTexel/s

17.86 TFLOPS

FP16 (half)

26.43 TFLOPS

8.928 TFLOPS

FP32 (float)

13.21 TFLOPS

558.0 GFLOPS

FP64 (double)

825.9 GFLOPS

Board Design

132W

TDP

230W

300 W

Suggested PSU

550 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Navi 23

GPU Name

Navi 22

Navi 23 XL (215-130000016)

GPU Variant

Navi 22 XT (215-127000006)

RDNA 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

7 nm

11.06 billion

Transistors

17.2 billion

237 mm²

Die Size

335 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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