AMD Radeon RX 6800 XT vs NVIDIA GeForce GTX 780 6 GB

VS

AMD Radeon RX 6800 XT

NVIDIA GeForce GTX 780 6 GB

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT and 6GB VRAM GeForce GTX 780 6 GB 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 7 years and 1 months late

Boost Clock has increased by 149% (2250MHz vs 902MHz)

More VRAM (16GB vs 6GB)

Larger VRAM bandwidth (512.0GB/s vs 288.4GB/s)

2304 additional rendering cores

NVIDIA GeForce GTX 780 6 GB 's Advantages

Lower TDP (250W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 XT +399%

20.74 TFLOPS

GeForce GTX 780 6 GB

4.156 TFLOPS

Radeon RX 6800 XT

VS

GeForce GTX 780 6 GB

Graphics Card

Oct 2020

Release Date

Sep 2013

Navi II

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1825 MHz

Base Clock

863 MHz

2250 MHz

Boost Clock

902 MHz

2000 MHz

Memory Clock

1502 MHz

Memory

16GB

Memory Size

6GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

384bit

512.0GB/s

Bandwidth

288.4GB/s

Render Config

72

Compute Units

-

4608

Shading Units

2304

288

TMUs

192

128

ROPs

48

-

72

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

1536 KB

128 MB

L3 Cache

-

Theoretical Performance

288.0 GPixel/s

Pixel Rate

43.30 GPixel/s

648.0 GTexel/s

Texture Rate

173.2 GTexel/s

41.47 TFLOPS

FP16 (half)

-

20.74 TFLOPS

FP32 (float)

4.156 TFLOPS

1296 GFLOPS

FP64 (double)

173.2 GFLOPS

Board Design

300W

TDP

250W

700 W

Suggested PSU

600 W

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

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Navi 21

GPU Name

GK110B

Navi 21 XT (215-121000177)

GPU Variant

GK110-301-B1

RDNA 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

7.08 billion

520 mm²

Die Size

561 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.1

-

CUDA

3.5

6.5

Shader Model

5.1

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