NVIDIA GeForce RTX 4080 vs ATI Radeon HD 3870 X2

VS

NVIDIA GeForce RTX 4080

ATI Radeon HD 3870 X2

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 4080 and 512MB VRAM Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4080 's Advantages

Released 14 years and 8 months late

Boost Clock2505MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (716.8GB/s vs 57.66GB/s)

9408 additional rendering cores

ATI Radeon HD 3870 X2 's Advantages

Lower TDP (165W vs 320W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 +9131%

48.74 TFLOPS

Radeon HD 3870 X2

0.528 TFLOPS

GeForce RTX 4080

VS

Radeon HD 3870 X2

Graphics Card

Sep 2022

Release Date

Jan 2008

GeForce 40

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2205 MHz

Base Clock

-

2505 MHz

Boost Clock

-

1400 MHz

Memory Clock

901 MHz

Memory

16GB

Memory Size

512MB

GDDR6X

Memory Type

GDDR3

256bit

Memory Bus

256bit

716.8GB/s

Bandwidth

57.66GB/s

Render Config

-

Compute Units

4

76

SM Count

-

9728

Shading Units

320

304

TMUs

16

112

ROPs

16

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

-

64 MB

L2 Cache

256 KB

-

Theoretical Performance

280.6 GPixel/s

Pixel Rate

13.20 GPixel/s

761.5 GTexel/s

Texture Rate

13.20 GTexel/s

48.74 TFLOPS

FP16 (half)

-

48.74 TFLOPS

FP32 (float)

528.0 GFLOPS

761.5 GFLOPS

FP64 (double)

105.6 GFLOPS

Board Design

320W

TDP

165W

700 W

Suggested PSU

450 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

2x DVI 1x S-Video

1x 16-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

AD103

GPU Name

R680

AD103-300-A1

GPU Variant

R680 XT (215-0708017)

Ada Lovelace

Architecture

TeraScale

TSMC

Foundry

TSMC

5 nm

Process Size

55 nm

45.9 billion

Transistors

0.666 billion

379 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)

3.0

OpenCL

N/A

1.3

Vulkan

N/A

8.9

CUDA

-

6.7

Shader Model

4.1

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