AMD Radeon RX 6900 XT vs ATI Radeon HD 3450 X2

VS

AMD Radeon RX 6900 XT ATI Radeon HD 3450 X2

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XT and 512MB VRAM Radeon HD 3450 X2 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 12 years and 10 months late

Boost Clock2250MHz

Larger VRAM bandwidth (512.0GB/s vs 8.000GB/s)

5080 additional rendering cores

ATI Radeon HD 3450 X2 's Advantages

Lower TDP (50W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XT +47900%

23.04 TFLOPS

Radeon HD 3450 X2

0.048 TFLOPS

Radeon RX 6900 XT

VS

Radeon HD 3450 X2

Graphics Card

Oct 2020

Release Date

Dec 2007

Navi II

Generation

Radeon R600

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

500 MHz

Memory

16GB

Memory Size

512MB

GDDR6

Memory Type

DDR2

256bit

Memory Bus

64bit

512.0GB/s

Bandwidth

8.000GB/s

Render Config

-

SM Count

-

80

Compute Units

2

5120

Shading Units

40

320

TMUs

4

128

ROPs

4

-

Tensor Cores

-

80

RT Cores

-

128 KB per Array

L1 Cache

-

4 MB

L2 Cache

64 KB

Theoretical Performance

288.0 GPixel/s

Pixel Rate

2.400 GPixel/s

720.0 GTexel/s

Texture Rate

2.400 GTexel/s

46.08 TFLOPS

FP16 (half)

-

23.04 TFLOPS

FP32 (float)

48.00 GFLOPS

1440 GFLOPS

FP64 (double)

-

Graphics Processor

Navi 21

GPU Name

RV620

Navi 21 XTX (215-121000167)

GPU Variant

RV620 LE

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

26.8 billion

Transistors

0.181 billion

520 mm²

Die Size

67 mm²

Board Design

300W

TDP

50W

700 W

Suggested PSU

250 W

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

Outputs

2x DMS-59

2x 8-pin

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

CUDA

-

6.5

Shader Model

4.1

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