NVIDIA GeForce GTX 780 6 GB vs AMD Radeon RX 6900 XT

VS

NVIDIA GeForce GTX 780 6 GB

AMD Radeon RX 6900 XT

We compared two Desktop platform GPUs: 6GB VRAM GeForce GTX 780 6 GB and 16GB VRAM Radeon RX 6900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 6 GB 's Advantages

Lower TDP (250W vs 300W)

AMD Radeon RX 6900 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)

2816 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 780 6 GB

4.156 TFLOPS

Radeon RX 6900 XT +454%

23.04 TFLOPS

GeForce GTX 780 6 GB

VS

Radeon RX 6900 XT

Graphics Card

Sep 2013

Release Date

Oct 2020

GeForce 700

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

863 MHz

Base Clock

1825 MHz

902 MHz

Boost Clock

2250 MHz

1502 MHz

Memory Clock

2000 MHz

Memory

6GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

256bit

288.4GB/s

Bandwidth

512.0GB/s

Render Config

-

Compute Units

80

-

2304

Shading Units

5120

192

TMUs

320

48

ROPs

128

-

RT Cores

80

16 KB (per SMX)

L1 Cache

128 KB per Array

1536 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

43.30 GPixel/s

Pixel Rate

288.0 GPixel/s

173.2 GTexel/s

Texture Rate

720.0 GTexel/s

-

FP16 (half)

46.08 TFLOPS

4.156 TFLOPS

FP32 (float)

23.04 TFLOPS

173.2 GFLOPS

FP64 (double)

1440 GFLOPS

Board Design

250W

TDP

300W

600 W

Suggested PSU

700 W

2x DVI 1x HDMI 1.4a 1x 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 Processor

GK110B

GPU Name

Navi 21

GK110-301-B1

GPU Variant

Navi 21 XTX (215-121000167)

Kepler

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

7.08 billion

Transistors

26.8 billion

561 mm²

Die Size

520 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.3

3.5

CUDA

-

5.1

Shader Model

6.5

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