NVIDIA GeForce RTX 3080 12 GB vs AMD Radeon HD 6950

VS

NVIDIA GeForce RTX 3080 12 GB

AMD Radeon HD 6950

We compared two Desktop platform GPUs: 12GB VRAM GeForce RTX 3080 12 GB and 2GB VRAM Radeon HD 6950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 12 GB 's Advantages

Released 11 years and 1 months late

Boost Clock1710MHz

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (912.4GB/s vs 160.0GB/s)

7552 additional rendering cores

AMD Radeon HD 6950 's Advantages

Lower TDP (200W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 12 GB +1259%

30.64 TFLOPS

Radeon HD 6950

2.253 TFLOPS

GeForce RTX 3080 12 GB

VS

Radeon HD 6950

Graphics Card

Jan 2022

Release Date

Dec 2010

GeForce 30

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1260 MHz

Base Clock

-

1710 MHz

Boost Clock

-

1188 MHz

Memory Clock

1250 MHz

Memory

12GB

Memory Size

2GB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

256bit

912.4GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

22

70

SM Count

-

8960

Shading Units

1408

280

TMUs

88

96

ROPs

32

280

Tensor Cores

-

70

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

478.8 GTexel/s

Texture Rate

70.40 GTexel/s

30.64 TFLOPS

FP16 (half)

-

30.64 TFLOPS

FP32 (float)

2.253 TFLOPS

478.8 GFLOPS

FP64 (double)

563.2 GFLOPS

Board Design

350W

TDP

200W

750 W

Suggested PSU

550 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 12-pin

Power Connectors

2x 6-pin

Graphics Processor

GA102

GPU Name

Cayman

GA102-220-A1

GPU Variant

Cayman PRO (215-0807019)

Ampere

Architecture

TeraScale 3

Samsung

Foundry

TSMC

8 nm

Process Size

40 nm

28.3 billion

Transistors

2.64 billion

628 mm²

Die Size

389 mm²

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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