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

VS

AMD Radeon RX 6900 XTX NVIDIA GeForce GTX 780 6 GB

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX 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 6900 XTX 's Advantages

Boost Clock has increased by 170% (2435MHz vs 902MHz)

More VRAM (16GB vs 6GB)

Larger VRAM bandwidth (576.0GB/s vs 288.4GB/s)

2816 additional rendering cores

NVIDIA GeForce GTX 780 6 GB 's Advantages

Lower TDP (250W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +499%

24.93 TFLOPS

GeForce GTX 780 6 GB

4.156 TFLOPS

Radeon RX 6900 XTX

VS

GeForce GTX 780 6 GB

Graphics Card

Unknown

Release Date

Sep 2013

Navi II

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2075 MHz

Base Clock

863 MHz

2435 MHz

Boost Clock

902 MHz

2250 MHz

Memory Clock

1502 MHz

Memory

16GB

Memory Size

6GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

384bit

576.0GB/s

Bandwidth

288.4GB/s

Render Config

-

SM Count

-

80

Compute Units

-

5120

Shading Units

2304

320

TMUs

192

128

ROPs

48

-

Tensor Cores

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

1536 KB

Theoretical Performance

311.7 GPixel/s

Pixel Rate

43.30 GPixel/s

779.2 GTexel/s

Texture Rate

173.2 GTexel/s

49.87 TFLOPS

FP16 (half)

-

24.93 TFLOPS

FP32 (float)

4.156 TFLOPS

1.558 TFLOPS

FP64 (double)

173.2 GFLOPS

Graphics Processor

Navi 21

GPU Name

GK110B

Navi 21 XTXH (215-121000247)

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

Board Design

330W

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 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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