NVIDIA GeForce RTX 4080 16 GB vs AMD Radeon HD 6870 X2

VS

NVIDIA GeForce RTX 4080 16 GB AMD Radeon HD 6870 X2

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 4080 16 GB and 1024MB VRAM Radeon HD 6870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4080 16 GB 's Advantages

Released 11 years and 2 months late

Boost Clock2505MHz

More VRAM (16GB vs 1GB)

Larger VRAM bandwidth (716.8GB/s vs 134.4GB/s)

8608 additional rendering cores

AMD Radeon HD 6870 X2 's Advantages

Lower TDP (300W vs 320W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 16 GB +2317%

48.74 TFLOPS

Radeon HD 6870 X2

2.016 TFLOPS

GeForce RTX 4080 16 GB

VS

Radeon HD 6870 X2

Graphics Card

Sep 2022

Release Date

Jul 2011

GeForce 40

Generation

Northern Islands

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

1050 MHz

Memory

16GB

Memory Size

1024MB

GDDR6X

Memory Type

GDDR5

256bit

Memory Bus

256bit

716.8GB/s

Bandwidth

134.4GB/s

Render Config

76

SM Count

-

Compute Units

14

9728

Shading Units

1120

304

TMUs

56

112

ROPs

32

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

64 MB

L2 Cache

512 KB

Theoretical Performance

280.6 GPixel/s

Pixel Rate

28.80 GPixel/s

761.5 GTexel/s

Texture Rate

50.40 GTexel/s

48.74 TFLOPS

FP16 (half)

-

48.74 TFLOPS

FP32 (float)

2.016 TFLOPS

761.5 GFLOPS

FP64 (double)

-

Graphics Processor

AD103

GPU Name

Barts

AD103-300-A1

GPU Variant

Barts XT (215-0798000)

Ada Lovelace

Architecture

TeraScale 2

TSMC

Foundry

TSMC

4 nm

Process Size

40 nm

45.9 billion

Transistors

1.7 billion

379 mm²

Die Size

255 mm²

Board Design

320W

TDP

300W

700 W

Suggested PSU

700 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

1x 16-pin

Power Connectors

-

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

8.9

CUDA

-

6.6

Shader Model

5.0

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