ATI Radeon HD 3850 X3 vs AMD Radeon RX 6700 XT

VS

ATI Radeon HD 3850 X3

AMD Radeon RX 6700 XT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3850 X3 and 12GB VRAM Radeon RX 6700 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3850 X3 's Advantages

Lower TDP (145W vs 230W)

AMD Radeon RX 6700 XT 's Advantages

Boost Clock2581MHz

More VRAM (12GB vs 512GB)

Larger VRAM bandwidth (384.0GB/s vs 54.40GB/s)

2240 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3850 X3

0.428 TFLOPS

Radeon RX 6700 XT +2986%

13.21 TFLOPS

Radeon HD 3850 X3

VS

Radeon RX 6700 XT

Graphics Card

Unknown

Release Date

Mar 2021

Radeon R600

Generation

Navi II

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2321 MHz

-

Boost Clock

2581 MHz

850 MHz

Memory Clock

2000 MHz

Memory

512MB

Memory Size

12GB

GDDR3

Memory Type

GDDR6

256bit

Memory Bus

192bit

54.40GB/s

Bandwidth

384.0GB/s

Render Config

4

Compute Units

40

-

320

Shading Units

2560

16

TMUs

160

16

ROPs

64

-

RT Cores

40

-

L1 Cache

128 KB per Array

256 KB

L2 Cache

3 MB

-

L3 Cache

96 MB

Theoretical Performance

10.70 GPixel/s

Pixel Rate

165.2 GPixel/s

10.70 GTexel/s

Texture Rate

413.0 GTexel/s

-

FP16 (half)

26.43 TFLOPS

428.2 GFLOPS

FP32 (float)

13.21 TFLOPS

-

FP64 (double)

825.9 GFLOPS

Board Design

145W

TDP

230W

300 W

Suggested PSU

550 W

4x DVI

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

RV670

GPU Name

Navi 22

RV670 PRO (215-0708003)

GPU Variant

Navi 22 XT (215-127000006)

TeraScale

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

7 nm

0.666 billion

Transistors

17.2 billion

192 mm²

Die Size

335 mm²

Graphics Features

10.1 (10_1)

DirectX

12 Ultimate (12_2)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

2.1

N/A

Vulkan

1.3

-

4.1

Shader Model

6.5

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