AMD Radeon RX 6900 XTX vs AMD Radeon RX 6750 XT

VS

AMD Radeon RX 6900 XTX

AMD Radeon RX 6750 XT

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 12GB VRAM Radeon RX 6750 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XTX 's Advantages

More VRAM (16GB vs 12GB)

Larger VRAM bandwidth (576.0GB/s vs 432.0GB/s)

2560 additional rendering cores

AMD Radeon RX 6750 XT 's Advantages

Boost Clock has increased by 7% (2600MHz vs 2435MHz)

Lower TDP (250W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +87%

24.93 TFLOPS

Radeon RX 6750 XT

13.31 TFLOPS

Radeon RX 6900 XTX

VS

Radeon RX 6750 XT

Graphics Card

Unknown

Release Date

Mar 2022

Navi II

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2075 MHz

Base Clock

2150 MHz

2435 MHz

Boost Clock

2600 MHz

2250 MHz

Memory Clock

2250 MHz

Memory

16GB

Memory Size

12GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

192bit

576.0GB/s

Bandwidth

432.0GB/s

Render Config

80

Compute Units

40

-

5120

Shading Units

2560

320

TMUs

160

128

ROPs

64

-

80

RT Cores

40

128 KB per Array

L1 Cache

128 KB per Array

4 MB

L2 Cache

3 MB

128 MB

L3 Cache

96 MB

Theoretical Performance

311.7 GPixel/s

Pixel Rate

166.4 GPixel/s

779.2 GTexel/s

Texture Rate

416.0 GTexel/s

49.87 TFLOPS

FP16 (half)

26.62 TFLOPS

24.93 TFLOPS

FP32 (float)

13.31 TFLOPS

1.558 TFLOPS

FP64 (double)

832.0 GFLOPS

Board Design

330W

TDP

250W

700 W

Suggested PSU

600 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 6-pin + 1x 8-pin

Graphics Processor

Navi 21

GPU Name

Navi 22

Navi 21 XTXH (215-121000247)

GPU Variant

Navi 22 KXT (215-127000144)

RDNA 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

7 nm

26.8 billion

Transistors

17.2 billion

520 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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