ATI Radeon HD 3850 X3 vs NVIDIA GeForce RTX 3080

VS

ATI Radeon HD 3850 X3

NVIDIA GeForce RTX 3080

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3850 X3 and 10GB VRAM GeForce RTX 3080 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 320W)

NVIDIA GeForce RTX 3080 's Advantages

Boost Clock1710MHz

More VRAM (10GB vs 512GB)

Larger VRAM bandwidth (760.3GB/s vs 54.40GB/s)

8384 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3850 X3

0.428 TFLOPS

GeForce RTX 3080 +6855%

29.77 TFLOPS

Radeon HD 3850 X3

VS

GeForce RTX 3080

Graphics Card

Unknown

Release Date

Sep 2020

Radeon R600

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1440 MHz

-

Boost Clock

1710 MHz

850 MHz

Memory Clock

1188 MHz

Memory

512MB

Memory Size

10GB

GDDR3

Memory Type

GDDR6X

256bit

Memory Bus

320bit

54.40GB/s

Bandwidth

760.3GB/s

Render Config

4

Compute Units

-

SM Count

68

320

Shading Units

8704

16

TMUs

272

16

ROPs

96

-

Tensor Cores

272

-

RT Cores

68

-

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

5 MB

-

Theoretical Performance

10.70 GPixel/s

Pixel Rate

164.2 GPixel/s

10.70 GTexel/s

Texture Rate

465.1 GTexel/s

-

FP16 (half)

29.77 TFLOPS

428.2 GFLOPS

FP32 (float)

29.77 TFLOPS

-

FP64 (double)

465.1 GFLOPS

Board Design

145W

TDP

320W

300 W

Suggested PSU

700 W

4x DVI

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 8-pin

Power Connectors

1x 12-pin

Graphics Processor

RV670

GPU Name

GA102

RV670 PRO (215-0708003)

GPU Variant

GA102-200-KD-A1

TeraScale

Architecture

Ampere

TSMC

Foundry

Samsung

55 nm

Process Size

8 nm

0.666 billion

Transistors

28.3 billion

192 mm²

Die Size

628 mm²

Graphics Features

10.1 (10_1)

DirectX

12 Ultimate (12_2)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

8.6

4.1

Shader Model

6.6

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