AMD Radeon HD 7870 GHz Edition vs NVIDIA GeForce RTX 3090 Ti

VS

AMD Radeon HD 7870 GHz Edition

NVIDIA GeForce RTX 3090 Ti

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 GHz Edition 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 7870 GHz Edition 's Advantages

Lower TDP (175W vs 450W)

NVIDIA GeForce RTX 3090 Ti 's Advantages

Released 9 years and 10 months late

Boost Clock1860MHz

More VRAM (24GB vs 2GB)

Larger VRAM bandwidth (1008GB/s vs 153.6GB/s)

9472 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7870 GHz Edition

2.56 TFLOPS

GeForce RTX 3090 Ti +1462%

40 TFLOPS

Radeon HD 7870 GHz Edition

VS

GeForce RTX 3090 Ti

Graphics Card

Mar 2012

Release Date

Jan 2022

Southern Islands

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1560 MHz

-

Boost Clock

1860 MHz

1200 MHz

Memory Clock

1313 MHz

Memory

2GB

Memory Size

24GB

GDDR5

Memory Type

GDDR6X

256bit

Memory Bus

384bit

153.6GB/s

Bandwidth

1008GB/s

Render Config

20

Compute Units

-

SM Count

84

1280

Shading Units

10752

80

TMUs

336

32

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

16 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

6 MB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

208.3 GPixel/s

80.00 GTexel/s

Texture Rate

625.0 GTexel/s

-

FP16 (half)

40.00 TFLOPS

2.560 TFLOPS

FP32 (float)

40.00 TFLOPS

160.0 GFLOPS

FP64 (double)

625.0 GFLOPS

Board Design

175W

TDP

450W

450 W

Suggested PSU

850 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

1x 16-pin

Graphics Processor

Pitcairn

GPU Name

GA102

Pitcairn XT (215-0828047)

GPU Variant

GA102-350-A1

GCN 1.0

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

2.8 billion

Transistors

28.3 billion

212 mm²

Die Size

628 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

8.6

5.1

Shader Model

6.6

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