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

VS

AMD Radeon RX 6800 XT AMD Radeon HD 7970 GHz Edition

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT and 3GB VRAM Radeon HD 7970 GHz Edition 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 RX 6800 XT +382%

20.74 TFLOPS

Radeon HD 7970 GHz Edition

4.301 TFLOPS

Radeon RX 6800 XT

VS

Radeon HD 7970 GHz Edition

Graphics Card

Oct 2020

Release Date

Jun 2012

Navi II

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1825 MHz

Base Clock

1000 MHz

2250 MHz

Boost Clock

1050 MHz

2000 MHz

Memory Clock

1500 MHz

Memory

16GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

384bit

512.0GB/s

Bandwidth

288.0GB/s

Render Config

-

SM Count

-

72

Compute Units

32

4608

Shading Units

2048

288

TMUs

128

ROPs

32

-

Tensor Cores

-

72

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

768 KB

Theoretical Performance

288.0 GPixel/s

Pixel Rate

33.60 GPixel/s

648.0 GTexel/s

Texture Rate

134.4 GTexel/s

41.47 TFLOPS

FP16 (half)

-

20.74 TFLOPS

FP32 (float)

4.301 TFLOPS

1296 GFLOPS

FP64 (double)

1075 GFLOPS

Graphics Processor

Navi 21

GPU Name

Tahiti

Navi 21 XT (215-121000177)

GPU Variant

Tahiti XT2 (215-0821065)

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

4.313 billion

520 mm²

Die Size

352 mm²

Board Design

300W

TDP

300W

700 W

Suggested PSU

700 W

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

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.3

Vulkan

1.2

-

CUDA

-

6.5

Shader Model

5.1

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