NVIDIA GeForce RTX 3080 vs AMD Radeon HD 6850 X2

VS

NVIDIA GeForce RTX 3080 AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 10GB VRAM GeForce RTX 3080 and 2GB VRAM Radeon HD 6850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 's Advantages

Released 9 years late

Boost Clock1710MHz

More VRAM (10GB vs 2GB)

Larger VRAM bandwidth (760.3GB/s vs 134.4GB/s)

7744 additional rendering cores

AMD Radeon HD 6850 X2 's Advantages

Lower TDP (254W vs 320W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 +1838%

29.77 TFLOPS

Radeon HD 6850 X2

1.536 TFLOPS

GeForce RTX 3080

VS

Radeon HD 6850 X2

Graphics Card

Sep 2020

Release Date

Sep 2011

GeForce 30

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1440 MHz

Base Clock

-

1710 MHz

Boost Clock

-

1188 MHz

Memory Clock

1050 MHz

Memory

10GB

Memory Size

2GB

GDDR6X

Memory Type

GDDR5

320bit

Memory Bus

256bit

760.3GB/s

Bandwidth

134.4GB/s

Render Config

68

SM Count

-

Compute Units

12

8704

Shading Units

960

272

TMUs

48

96

ROPs

32

272

Tensor Cores

-

68

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

5 MB

L2 Cache

512 KB

Theoretical Performance

164.2 GPixel/s

Pixel Rate

25.60 GPixel/s

465.1 GTexel/s

Texture Rate

38.40 GTexel/s

29.77 TFLOPS

FP16 (half)

-

29.77 TFLOPS

FP32 (float)

1.536 TFLOPS

465.1 GFLOPS

FP64 (double)

-

Graphics Processor

GA102

GPU Name

Barts

GA102-200-KD-A1

GPU Variant

Barts PRO (215-0798006)

Ampere

Architecture

TeraScale 2

Samsung

Foundry

TSMC

8 nm

Process Size

40 nm

28.3 billion

Transistors

1.7 billion

628 mm²

Die Size

255 mm²

Board Design

320W

TDP

254W

700 W

Suggested PSU

600 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

1x 12-pin

Power Connectors

2x 8-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

8.6

CUDA

-

6.6

Shader Model

5.0

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