AMD Radeon HD 7970 GHz Edition vs AMD Radeon RX 6800 XT

VS

AMD Radeon HD 7970 GHz Edition AMD Radeon RX 6800 XT

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 GHz Edition and 16GB VRAM Radeon RX 6800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800 XT 's Advantages

Released 8 years and 4 months late

Boost Clock has increased by 114% (2250MHz vs 1050MHz)

More VRAM (16GB vs 3GB)

Larger VRAM bandwidth (512.0GB/s vs 288.0GB/s)

2560 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7970 GHz Edition

4.301 TFLOPS

Radeon RX 6800 XT +382%

20.74 TFLOPS

Radeon HD 7970 GHz Edition

VS

Radeon RX 6800 XT

Graphics Card

Jun 2012

Release Date

Oct 2020

Southern Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1000 MHz

Base Clock

1825 MHz

1050 MHz

Boost Clock

2250 MHz

1500 MHz

Memory Clock

2000 MHz

Memory

3GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

256bit

288.0GB/s

Bandwidth

512.0GB/s

Render Config

-

SM Count

-

32

Compute Units

72

2048

Shading Units

4608

128

TMUs

288

32

ROPs

128

-

Tensor Cores

-

RT Cores

72

16 KB (per CU)

L1 Cache

128 KB per Array

768 KB

L2 Cache

4 MB

Theoretical Performance

33.60 GPixel/s

Pixel Rate

288.0 GPixel/s

134.4 GTexel/s

Texture Rate

648.0 GTexel/s

-

FP16 (half)

41.47 TFLOPS

4.301 TFLOPS

FP32 (float)

20.74 TFLOPS

1075 GFLOPS

FP64 (double)

1296 GFLOPS

Graphics Processor

Tahiti

GPU Name

Navi 21

Tahiti XT2 (215-0821065)

GPU Variant

Navi 21 XT (215-121000177)

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

4.313 billion

Transistors

26.8 billion

352 mm²

Die Size

520 mm²

Board Design

300W

TDP

300W

700 W

Suggested PSU

700 W

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

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.3

-

CUDA

-

5.1

Shader Model

6.5

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