NVIDIA GeForce RTX 3080 vs AMD Radeon HD 7970

VS

NVIDIA GeForce RTX 3080

AMD Radeon HD 7970

We compared two Desktop platform GPUs: 10GB VRAM GeForce RTX 3080 and 3GB VRAM Radeon HD 7970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 's Advantages

Released 8 years and 9 months late

Boost Clock1710MHz

More VRAM (10GB vs 3GB)

Larger VRAM bandwidth (760.3GB/s vs 264.0GB/s)

6656 additional rendering cores

AMD Radeon HD 7970 's Advantages

Lower TDP (250W vs 320W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 +685%

29.77 TFLOPS

Radeon HD 7970

3.789 TFLOPS

3DMark Time Spy

GeForce RTX 3080 +678%

17753

Radeon HD 7970

2279

GeForce RTX 3080

VS

Radeon HD 7970

Graphics Card

Sep 2020

Release Date

Dec 2011

GeForce 30

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1440 MHz

Base Clock

-

1710 MHz

Boost Clock

-

1188 MHz

Memory Clock

1375 MHz

Memory

10GB

Memory Size

3GB

GDDR6X

Memory Type

GDDR5

320bit

Memory Bus

384bit

760.3GB/s

Bandwidth

264.0GB/s

Render Config

-

Compute Units

32

68

SM Count

-

8704

Shading Units

2048

272

TMUs

128

96

ROPs

32

272

Tensor Cores

-

68

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

5 MB

L2 Cache

768 KB

-

Theoretical Performance

164.2 GPixel/s

Pixel Rate

29.60 GPixel/s

465.1 GTexel/s

Texture Rate

118.4 GTexel/s

29.77 TFLOPS

FP16 (half)

-

29.77 TFLOPS

FP32 (float)

3.789 TFLOPS

465.1 GFLOPS

FP64 (double)

947.2 GFLOPS

Board Design

320W

TDP

250W

700 W

Suggested PSU

600 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 + 1x 8-pin

Graphics Processor

GA102

GPU Name

Tahiti

GA102-200-KD-A1

GPU Variant

Tahiti XT (215-0821060)

Ampere

Architecture

GCN 1.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

28.3 billion

Transistors

4.313 billion

628 mm²

Die Size

352 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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