NVIDIA GeForce RTX 4090 Ti vs AMD Radeon HD 7870 XT

VS

NVIDIA GeForce RTX 4090 Ti

AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 Ti and 2GB VRAM Radeon HD 7870 XT 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 Clock has increased by 163% (2565MHz vs 975MHz)

More VRAM (24GB vs 2GB)

Larger VRAM bandwidth (1152GB/s vs 192.0GB/s)

16640 additional rendering cores

AMD Radeon HD 7870 XT 's Advantages

Lower TDP (185W vs 600W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Ti +3013%

93.24 TFLOPS

Radeon HD 7870 XT

2.995 TFLOPS

GeForce RTX 4090 Ti

VS

Radeon HD 7870 XT

Graphics Card

Unknown

Release Date

Nov 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

925 MHz

2565 MHz

Boost Clock

975 MHz

1500 MHz

Memory Clock

1500 MHz

Memory

24GB

Memory Size

2GB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

256bit

1152GB/s

Bandwidth

192.0GB/s

Render Config

-

Compute Units

24

142

SM Count

-

18176

Shading Units

1536

568

TMUs

96

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

31.20 GPixel/s

1457 GTexel/s

Texture Rate

93.60 GTexel/s

93.24 TFLOPS

FP16 (half)

-

93.24 TFLOPS

FP32 (float)

2.995 TFLOPS

1457 GFLOPS

FP64 (double)

748.8 GFLOPS

Board Design

600W

TDP

185W

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

Tahiti

AD102-400-A1

GPU Variant

Tahiti LE (215-0821122)

Ada Lovelace

Architecture

GCN 1.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

76.3 billion

Transistors

4.313 billion

609 mm²

Die Size

352 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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