AMD Radeon RX 6800 vs AMD Radeon HD 7790

VS

AMD Radeon RX 6800

AMD Radeon HD 7790

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 and 1024MB VRAM Radeon HD 7790 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800 's Advantages

Released 7 years and 7 months late

Boost Clock2105MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (512.0GB/s vs 96.00GB/s)

2944 additional rendering cores

AMD Radeon HD 7790 's Advantages

Lower TDP (85W vs 250W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 +802%

16.17 TFLOPS

Radeon HD 7790

1.792 TFLOPS

Radeon RX 6800

VS

Radeon HD 7790

Graphics Card

Oct 2020

Release Date

Mar 2013

Navi II

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1700 MHz

Base Clock

-

2105 MHz

Boost Clock

-

2000 MHz

Memory Clock

1500 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

512.0GB/s

Bandwidth

96.00GB/s

Render Config

60

Compute Units

14

-

3840

Shading Units

896

240

TMUs

56

96

ROPs

16

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

128 MB

L3 Cache

-

Theoretical Performance

202.1 GPixel/s

Pixel Rate

16.00 GPixel/s

505.2 GTexel/s

Texture Rate

56.00 GTexel/s

32.33 TFLOPS

FP16 (half)

-

16.17 TFLOPS

FP32 (float)

1.792 TFLOPS

1010 GFLOPS

FP64 (double)

112.0 GFLOPS

Board Design

250W

TDP

85W

600 W

Suggested PSU

250 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

Graphics Processor

Navi 21

GPU Name

Bonaire

Navi 21 XL (215-121000187)

GPU Variant

Bonaire XT (215-0839039)

RDNA 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

2.08 billion

520 mm²

Die Size

160 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.3

Vulkan

1.2

-

6.5

Shader Model

6.3

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