NVIDIA GeForce RTX 4090 Ti vs AMD Radeon HD 6870

VS

NVIDIA GeForce RTX 4090 Ti AMD Radeon HD 6870

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 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 4090 Ti 's Advantages

Boost Clock2565MHz

More VRAM (24GB vs 1GB)

Larger VRAM bandwidth (1152GB/s vs 134.4GB/s)

17056 additional rendering cores

AMD Radeon HD 6870 's Advantages

Lower TDP (151W vs 600W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Ti +4525%

93.24 TFLOPS

Radeon HD 6870

2.016 TFLOPS

GeForce RTX 4090 Ti

VS

Radeon HD 6870

Graphics Card

Unknown

Release Date

Oct 2010

GeForce 40

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2325 MHz

Base Clock

-

2565 MHz

Boost Clock

-

1500 MHz

Memory Clock

1050 MHz

Memory

24GB

Memory Size

1024MB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

256bit

1152GB/s

Bandwidth

134.4GB/s

Render Config

142

SM Count

-

Compute Units

14

18176

Shading Units

1120

568

TMUs

56

192

ROPs

32

568

Tensor Cores

-

142

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

96 MB

L2 Cache

512 KB

Theoretical Performance

492.5 GPixel/s

Pixel Rate

28.80 GPixel/s

1457 GTexel/s

Texture Rate

50.40 GTexel/s

93.24 TFLOPS

FP16 (half)

-

93.24 TFLOPS

FP32 (float)

2.016 TFLOPS

1457 GFLOPS

FP64 (double)

-

Graphics Processor

AD102

GPU Name

Barts

AD102-400-A1

GPU Variant

Barts XT (215-0798000)

Ada Lovelace

Architecture

TeraScale 2

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

76.3 billion

Transistors

1.7 billion

609 mm²

Die Size

255 mm²

Board Design

600W

TDP

151W

1000 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

2x 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

8.9

CUDA

-

6.7

Shader Model

5.0

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