NVIDIA GeForce RTX 4090 Ti vs AMD Radeon HD 7870 GHz Edition

VS

NVIDIA GeForce RTX 4090 Ti

AMD Radeon HD 7870 GHz Edition

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 Ti and 2GB VRAM Radeon HD 7870 GHz Edition 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 2GB)

Larger VRAM bandwidth (1152GB/s vs 153.6GB/s)

16896 additional rendering cores

AMD Radeon HD 7870 GHz Edition 's Advantages

Lower TDP (175W vs 600W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Ti +3542%

93.24 TFLOPS

Radeon HD 7870 GHz Edition

2.56 TFLOPS

GeForce RTX 4090 Ti

VS

Radeon HD 7870 GHz Edition

Graphics Card

Unknown

Release Date

Mar 2012

GeForce 40

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2325 MHz

Base Clock

-

2565 MHz

Boost Clock

-

1500 MHz

Memory Clock

1200 MHz

Memory

24GB

Memory Size

2GB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

256bit

1152GB/s

Bandwidth

153.6GB/s

Render Config

-

Compute Units

20

142

SM Count

-

18176

Shading Units

1280

568

TMUs

80

192

ROPs

32

568

Tensor Cores

-

142

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

96 MB

L2 Cache

512 KB

-

Theoretical Performance

492.5 GPixel/s

Pixel Rate

32.00 GPixel/s

1457 GTexel/s

Texture Rate

80.00 GTexel/s

93.24 TFLOPS

FP16 (half)

-

93.24 TFLOPS

FP32 (float)

2.560 TFLOPS

1457 GFLOPS

FP64 (double)

160.0 GFLOPS

Board Design

600W

TDP

175W

1000 W

Suggested PSU

450 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

2x 16-pin

Power Connectors

2x 6-pin

Graphics Processor

AD102

GPU Name

Pitcairn

AD102-400-A1

GPU Variant

Pitcairn XT (215-0828047)

Ada Lovelace

Architecture

GCN 1.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

76.3 billion

Transistors

2.8 billion

609 mm²

Die Size

212 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

8.9

CUDA

-

6.7

Shader Model

5.1

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