AMD Radeon HD 6850 X2 vs NVIDIA GeForce RTX 3090

VS

AMD Radeon HD 6850 X2

NVIDIA GeForce RTX 3090

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 24GB VRAM GeForce RTX 3090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 X2 's Advantages

Lower TDP (254W vs 350W)

NVIDIA GeForce RTX 3090 's Advantages

Released 9 years late

Boost Clock1695MHz

More VRAM (24GB vs 2GB)

Larger VRAM bandwidth (936.2GB/s vs 134.4GB/s)

9536 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2

1.536 TFLOPS

GeForce RTX 3090 +2216%

35.58 TFLOPS

Radeon HD 6850 X2

VS

GeForce RTX 3090

Graphics Card

Sep 2011

Release Date

Sep 2020

Northern Islands

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1395 MHz

-

Boost Clock

1695 MHz

1050 MHz

Memory Clock

1219 MHz

Memory

2GB

Memory Size

24GB

GDDR5

Memory Type

GDDR6X

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

936.2GB/s

Render Config

12

Compute Units

-

SM Count

82

960

Shading Units

10496

48

TMUs

328

32

ROPs

112

-

Tensor Cores

328

-

RT Cores

82

8 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

6 MB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

189.8 GPixel/s

38.40 GTexel/s

Texture Rate

556.0 GTexel/s

-

FP16 (half)

35.58 TFLOPS

1.536 TFLOPS

FP32 (float)

35.58 TFLOPS

-

FP64 (double)

556.0 GFLOPS

Board Design

254W

TDP

350W

600 W

Suggested PSU

750 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 12-pin

Graphics Processor

Barts

GPU Name

GA102

Barts PRO (215-0798006)

GPU Variant

GA102-300-A1

TeraScale 2

Architecture

Ampere

TSMC

Foundry

Samsung

40 nm

Process Size

8 nm

1.7 billion

Transistors

28.3 billion

255 mm²

Die Size

628 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

8.6

5.0

Shader Model

6.6

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