NVIDIA GeForce RTX 3090 Ti vs AMD Radeon HD 6870

VS

NVIDIA GeForce RTX 3090 Ti AMD Radeon HD 6870

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 3090 Ti and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3090 Ti 's Advantages

Released 11 years and 3 months late

Boost Clock1860MHz

More VRAM (24GB vs 1GB)

Larger VRAM bandwidth (1008GB/s vs 134.4GB/s)

9632 additional rendering cores

AMD Radeon HD 6870 's Advantages

Lower TDP (151W vs 450W)

Score

Benchmark

FP32 (float)

GeForce RTX 3090 Ti +1884%

40 TFLOPS

Radeon HD 6870

2.016 TFLOPS

GeForce RTX 3090 Ti

VS

Radeon HD 6870

Graphics Card

Jan 2022

Release Date

Oct 2010

GeForce 30

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1560 MHz

Base Clock

-

1860 MHz

Boost Clock

-

1313 MHz

Memory Clock

1050 MHz

Memory

24GB

Memory Size

1024MB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

256bit

1008GB/s

Bandwidth

134.4GB/s

Render Config

84

SM Count

-

Compute Units

14

10752

Shading Units

1120

336

TMUs

56

112

ROPs

32

336

Tensor Cores

-

84

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

6 MB

L2 Cache

512 KB

Theoretical Performance

208.3 GPixel/s

Pixel Rate

28.80 GPixel/s

625.0 GTexel/s

Texture Rate

50.40 GTexel/s

40.00 TFLOPS

FP16 (half)

-

40.00 TFLOPS

FP32 (float)

2.016 TFLOPS

625.0 GFLOPS

FP64 (double)

-

Graphics Processor

GA102

GPU Name

Barts

GA102-350-A1

GPU Variant

Barts XT (215-0798000)

Ampere

Architecture

TeraScale 2

Samsung

Foundry

TSMC

8 nm

Process Size

40 nm

28.3 billion

Transistors

1.7 billion

628 mm²

Die Size

255 mm²

Board Design

450W

TDP

151W

850 W

Suggested PSU

450 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

2x 6-pin

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

8.6

CUDA

-

6.6

Shader Model

5.0

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