AMD Radeon RX 6900 XT vs AMD Radeon HD 6750

VS

AMD Radeon RX 6900 XT

AMD Radeon HD 6750

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XT and 1024MB VRAM Radeon HD 6750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XT 's Advantages

Released 9 years and 9 months late

Boost Clock2250MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (512.0GB/s vs 73.60GB/s)

4400 additional rendering cores

AMD Radeon HD 6750 's Advantages

Lower TDP (86W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XT +2185%

23.04 TFLOPS

Radeon HD 6750

1.008 TFLOPS

Radeon RX 6900 XT

VS

Radeon HD 6750

Graphics Card

Oct 2020

Release Date

Jan 2011

Navi II

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1825 MHz

Base Clock

-

2250 MHz

Boost Clock

-

2000 MHz

Memory Clock

1150 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

512.0GB/s

Bandwidth

73.60GB/s

Render Config

80

Compute Units

9

-

5120

Shading Units

720

320

TMUs

36

128

ROPs

16

-

80

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

4 MB

L2 Cache

256 KB

128 MB

L3 Cache

-

Theoretical Performance

288.0 GPixel/s

Pixel Rate

11.20 GPixel/s

720.0 GTexel/s

Texture Rate

25.20 GTexel/s

46.08 TFLOPS

FP16 (half)

-

23.04 TFLOPS

FP32 (float)

1008 GFLOPS

1440 GFLOPS

FP64 (double)

-

Board Design

300W

TDP

86W

700 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 21

GPU Name

Juniper

Navi 21 XTX (215-121000167)

GPU Variant

Juniper LE (215-0754009)

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

26.8 billion

Transistors

1.04 billion

520 mm²

Die Size

166 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

1.3

Vulkan

N/A

-

6.5

Shader Model

5.0

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