AMD Radeon RX 6600 XT vs NVIDIA GeForce GTX 780 6 GB

VS

AMD Radeon RX 6600 XT NVIDIA GeForce GTX 780 6 GB

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 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 6600 XT 's Advantages

Released 7 years and 10 months late

Boost Clock has increased by 187% (2589MHz vs 902MHz)

More VRAM (8GB vs 6GB)

Lower TDP (160W vs 250W)

NVIDIA GeForce GTX 780 6 GB 's Advantages

Larger VRAM bandwidth (288.4GB/s vs 256.0GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600 XT +155%

10.6 TFLOPS

GeForce GTX 780 6 GB

4.156 TFLOPS

Radeon RX 6600 XT

VS

GeForce GTX 780 6 GB

Graphics Card

Jul 2021

Release Date

Sep 2013

Navi II

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1968 MHz

Base Clock

863 MHz

2589 MHz

Boost Clock

902 MHz

2000 MHz

Memory Clock

1502 MHz

Memory

8GB

Memory Size

6GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

384bit

256.0GB/s

Bandwidth

288.4GB/s

Render Config

-

SM Count

-

32

Compute Units

-

2048

Shading Units

2304

128

TMUs

192

64

ROPs

48

-

Tensor Cores

-

32

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

1536 KB

Theoretical Performance

165.7 GPixel/s

Pixel Rate

43.30 GPixel/s

331.4 GTexel/s

Texture Rate

173.2 GTexel/s

21.21 TFLOPS

FP16 (half)

-

10.60 TFLOPS

FP32 (float)

4.156 TFLOPS

662.8 GFLOPS

FP64 (double)

173.2 GFLOPS

Graphics Processor

Navi 23

GPU Name

GK110B

Navi 23 XT (215-130000006)

GPU Variant

GK110-301-B1

RDNA 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

7.08 billion

237 mm²

Die Size

561 mm²

Board Design

160W

TDP

250W

450 W

Suggested PSU

600 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 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

6.7

Shader Model

5.1

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