NVIDIA GeForce GTX 780 vs AMD Radeon RX 6650 XT

VS

NVIDIA GeForce GTX 780 AMD Radeon RX 6650 XT

We compared two Desktop platform GPUs: 3GB VRAM GeForce GTX 780 and 8GB VRAM Radeon RX 6650 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 's Advantages

Larger VRAM bandwidth (288.4GB/s vs 280.3GB/s)

256 additional rendering cores

AMD Radeon RX 6650 XT 's Advantages

Released 9 years late

Boost Clock has increased by 192% (2635MHz vs 902MHz)

More VRAM (8GB vs 3GB)

Lower TDP (176W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 780

4.156 TFLOPS

Radeon RX 6650 XT +159%

10.79 TFLOPS

3DMark Time Spy

GeForce GTX 780

2775

Radeon RX 6650 XT +256%

9897

Blender

GeForce GTX 780

342

Radeon RX 6650 XT +259%

1229

GeForce GTX 780

VS

Radeon RX 6650 XT

Graphics Card

May 2013

Release Date

May 2022

GeForce 700

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

863 MHz

Base Clock

2055 MHz

902 MHz

Boost Clock

2635 MHz

1502 MHz

Memory Clock

2190 MHz

Memory

3GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

128bit

288.4GB/s

Bandwidth

280.3GB/s

Render Config

-

SM Count

-

Compute Units

32

2304

Shading Units

2048

192

TMUs

128

48

ROPs

64

-

Tensor Cores

-

RT Cores

32

16 KB (per SMX)

L1 Cache

128 KB per Array

1536 KB

L2 Cache

2 MB

Theoretical Performance

43.30 GPixel/s

Pixel Rate

168.6 GPixel/s

173.2 GTexel/s

Texture Rate

337.3 GTexel/s

-

FP16 (half)

21.59 TFLOPS

4.156 TFLOPS

FP32 (float)

10.79 TFLOPS

173.2 GFLOPS

FP64 (double)

674.6 GFLOPS

Graphics Processor

GK110

GPU Name

Navi 23

GK110-300-A1

GPU Variant

Navi 23 KXT (215-130000136)

Kepler

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

7.08 billion

Transistors

11.06 billion

561 mm²

Die Size

237 mm²

Board Design

250W

TDP

176W

600 W

Suggested PSU

450 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

1x 8-pin

Graphics Features

12 (11_0)

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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