AMD Radeon RX 7950 XT vs ATI Radeon HD 3850 X3

VS

AMD Radeon RX 7950 XT

ATI Radeon HD 3850 X3

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7950 XT and 512MB VRAM Radeon HD 3850 X3 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7950 XT 's Advantages

Boost Clock3000MHz

More VRAM (20GB vs 512GB)

Larger VRAM bandwidth (800.0GB/s vs 54.40GB/s)

5056 additional rendering cores

ATI Radeon HD 3850 X3 's Advantages

Lower TDP (145W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 7950 XT +14972%

64.51 TFLOPS

Radeon HD 3850 X3

0.428 TFLOPS

Radeon RX 7950 XT

VS

Radeon HD 3850 X3

Graphics Card

Unknown

Release Date

Unknown

Navi III

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2000 MHz

Base Clock

-

3000 MHz

Boost Clock

-

2500 MHz

Memory Clock

850 MHz

Memory

20GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

320bit

Memory Bus

256bit

800.0GB/s

Bandwidth

54.40GB/s

Render Config

84

Compute Units

4

-

5376

Shading Units

320

336

TMUs

16

192

ROPs

16

-

84

RT Cores

-

256 KB per Array

L1 Cache

-

6 MB

L2 Cache

256 KB

80 MB

L3 Cache

-

Theoretical Performance

576.0 GPixel/s

Pixel Rate

10.70 GPixel/s

1008 GTexel/s

Texture Rate

10.70 GTexel/s

129.0 TFLOPS

FP16 (half)

-

64.51 TFLOPS

FP32 (float)

428.2 GFLOPS

2.016 TFLOPS

FP64 (double)

-

Board Design

300W

TDP

145W

700 W

Suggested PSU

300 W

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

Outputs

4x DVI

2x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Navi 31

GPU Name

RV670

Navi 31 XT+

GPU Variant

RV670 PRO (215-0708003)

RDNA 3.0

Architecture

TeraScale

TSMC

Foundry

TSMC

5 nm

Process Size

55 nm

57.7 billion

Transistors

0.666 billion

529 mm²

Die Size

192 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.2

OpenCL

N/A

1.3

Vulkan

N/A

-

6.7

Shader Model

4.1

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