AMD Radeon RX 6900 XT vs AMD Radeon RX 7900 XTX

VS

AMD Radeon RX 6900 XT AMD Radeon RX 7900 XTX

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XT and 24GB VRAM Radeon RX 7900 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XT 's Advantages

Lower TDP (300W vs 355W)

AMD Radeon RX 7900 XTX 's Advantages

Released 2 years and 1 months late

Boost Clock has increased by 11% (2498MHz vs 2250MHz)

More VRAM (24GB vs 16GB)

Larger VRAM bandwidth (960.0GB/s vs 512.0GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6900 XT

23.04 TFLOPS

Radeon RX 7900 XTX +166%

61.39 TFLOPS

3DMark Time Spy

Radeon RX 6900 XT

20915

Radeon RX 7900 XTX +45%

30511

Blender

Radeon RX 6900 XT

2883

Radeon RX 7900 XTX +71%

4950

Shadow of the Tomb Raider 2160p

Radeon RX 6900 XT

79

Radeon RX 7900 XTX +60%

127

Shadow of the Tomb Raider 1440p

Radeon RX 6900 XT

142

Radeon RX 7900 XTX +60%

228

Shadow of the Tomb Raider 1080p

Radeon RX 6900 XT

194

Radeon RX 7900 XTX +59%

310

Cyberpunk 2077 2160p

Radeon RX 6900 XT

66

Radeon RX 7900 XTX +7%

71

Cyberpunk 2077 1440p

Radeon RX 6900 XT

77

Radeon RX 7900 XTX +35%

104

Cyberpunk 2077 1080p

Radeon RX 6900 XT

116

Radeon RX 7900 XTX +14%

133

GTA 5 2160p

Radeon RX 6900 XT

127

Radeon RX 7900 XTX +37%

175

GTA 5 1440p

Radeon RX 6900 XT

152

Radeon RX 7900 XTX +15%

175

GTA 5 1080p

Radeon RX 6900 XT

189

Radeon RX 7900 XTX

190

Horizon Forbidden West 1080p

Radeon RX 6900 XT

114

Radeon RX 7900 XTX +26%

144

Horizon Forbidden West 1440p

Radeon RX 6900 XT

89

Radeon RX 7900 XTX +35%

121

Horizon Forbidden West 2160p

Radeon RX 6900 XT

56

Radeon RX 7900 XTX +42%

80

Radeon RX 6900 XT

VS

Radeon RX 7900 XTX

Graphics Card

Oct 2020

Release Date

Nov 2022

Navi II

Generation

Navi III

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1825 MHz

Base Clock

1929 MHz

2250 MHz

Boost Clock

2498 MHz

2000 MHz

Memory Clock

2500 MHz

Memory

16GB

Memory Size

24GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

384bit

512.0GB/s

Bandwidth

960.0GB/s

Render Config

-

SM Count

-

80

Compute Units

96

5120

Shading Units

6144

320

TMUs

384

128

ROPs

192

-

Tensor Cores

-

80

RT Cores

96

128 KB per Array

L1 Cache

256 KB per Array

4 MB

L2 Cache

6 MB

Theoretical Performance

288.0 GPixel/s

Pixel Rate

479.6 GPixel/s

720.0 GTexel/s

Texture Rate

959.2 GTexel/s

46.08 TFLOPS

FP16 (half)

122.8 TFLOPS

23.04 TFLOPS

FP32 (float)

61.39 TFLOPS

1440 GFLOPS

FP64 (double)

1.918 TFLOPS

Graphics Processor

Navi 21

GPU Name

Navi 31

Navi 21 XTX (215-121000167)

GPU Variant

Navi 31 XTX (215-145000146)

RDNA 2.0

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

7 nm

Process Size

5 nm

26.8 billion

Transistors

57.7 billion

520 mm²

Die Size

529 mm²

Board Design

300W

TDP

355W

700 W

Suggested PSU

750 W

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

Outputs

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

2x 8-pin

Power Connectors

2x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.2

1.3

Vulkan

1.3

-

CUDA

-

6.5

Shader Model

6.7

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