AMD Radeon HD 6870 X2 vs NVIDIA GeForce RTX 3090 Ti

VS

AMD Radeon HD 6870 X2

NVIDIA GeForce RTX 3090 Ti

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 24GB VRAM GeForce RTX 3090 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 X2 's Advantages

Lower TDP (300W vs 450W)

NVIDIA GeForce RTX 3090 Ti 's Advantages

Released 10 years and 6 months late

Boost Clock1860MHz

More VRAM (24GB vs 1024GB)

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

9632 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2

2.016 TFLOPS

GeForce RTX 3090 Ti +1884%

40 TFLOPS

Radeon HD 6870 X2

VS

GeForce RTX 3090 Ti

Graphics Card

Jul 2011

Release Date

Jan 2022

Northern Islands

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1560 MHz

-

Boost Clock

1860 MHz

1050 MHz

Memory Clock

1313 MHz

Memory

1024MB

Memory Size

24GB

GDDR5

Memory Type

GDDR6X

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

1008GB/s

Render Config

14

Compute Units

-

SM Count

84

1120

Shading Units

10752

56

TMUs

336

32

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

8 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

6 MB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

208.3 GPixel/s

50.40 GTexel/s

Texture Rate

625.0 GTexel/s

-

FP16 (half)

40.00 TFLOPS

2.016 TFLOPS

FP32 (float)

40.00 TFLOPS

-

FP64 (double)

625.0 GFLOPS

Board Design

300W

TDP

450W

700 W

Suggested PSU

850 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

-

Power Connectors

1x 16-pin

Graphics Processor

Barts

GPU Name

GA102

Barts XT (215-0798000)

GPU Variant

GA102-350-A1

TeraScale 2

Architecture

Ampere

TSMC

Foundry

Samsung

40 nm

Process Size

8 nm

1.7 billion

Transistors

28.3 billion

255 mm²

Die Size

628 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

8.6

5.0

Shader Model

6.6

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