NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon HD 7850

VS

NVIDIA GeForce RTX 3080 Ti 20 GB

AMD Radeon HD 7850

We compared two Desktop platform GPUs: 20GB VRAM GeForce RTX 3080 Ti 20 GB and 2GB VRAM Radeon HD 7850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti 20 GB 's Advantages

Released 9 years and 10 months late

Boost Clock1665MHz

More VRAM (20GB vs 2GB)

Larger VRAM bandwidth (760.3GB/s vs 153.6GB/s)

9216 additional rendering cores

AMD Radeon HD 7850 's Advantages

Lower TDP (130W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti 20 GB +1836%

34.1 TFLOPS

Radeon HD 7850

1.761 TFLOPS

GeForce RTX 3080 Ti 20 GB

VS

Radeon HD 7850

Graphics Card

Jan 2022

Release Date

Mar 2012

GeForce 30

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1335 MHz

Base Clock

-

1665 MHz

Boost Clock

-

1188 MHz

Memory Clock

1200 MHz

Memory

20GB

Memory Size

2GB

GDDR6X

Memory Type

GDDR5

320bit

Memory Bus

256bit

760.3GB/s

Bandwidth

153.6GB/s

Render Config

-

Compute Units

16

80

SM Count

-

10240

Shading Units

1024

320

TMUs

64

112

ROPs

32

320

Tensor Cores

-

80

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

512 KB

-

Theoretical Performance

186.5 GPixel/s

Pixel Rate

27.52 GPixel/s

532.8 GTexel/s

Texture Rate

55.04 GTexel/s

34.10 TFLOPS

FP16 (half)

-

34.10 TFLOPS

FP32 (float)

1.761 TFLOPS

532.8 GFLOPS

FP64 (double)

110.1 GFLOPS

Board Design

350W

TDP

130W

750 W

Suggested PSU

300 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 12-pin

Power Connectors

1x 6-pin

Graphics Processor

GA102

GPU Name

Pitcairn

GA102-225-A1

GPU Variant

Pitcairn PRO (215-0828062)

Ampere

Architecture

GCN 1.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

28.3 billion

Transistors

2.8 billion

628 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

8.6

CUDA

-

6.6

Shader Model

5.1

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