AMD Radeon RX 6600 XT vs NVIDIA GeForce GTX 980

VS

AMD Radeon RX 6600 XT

NVIDIA GeForce GTX 980

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 XT and 4GB VRAM GeForce GTX 980 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 6 years and 10 months late

Boost Clock has increased by 113% (2589MHz vs 1216MHz)

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (256.0GB/s vs 224.4GB/s)

Lower TDP (160W vs 165W)

Score

Benchmark

FP32 (float)

Radeon RX 6600 XT +112%

10.6 TFLOPS

GeForce GTX 980

4.981 TFLOPS

3DMark Time Spy

Radeon RX 6600 XT +121%

9579

GeForce GTX 980

4322

Shadow of the Tomb Raider 2160p

Radeon RX 6600 XT +111%

38

GeForce GTX 980

18

Shadow of the Tomb Raider 1440p

Radeon RX 6600 XT +105%

72

GeForce GTX 980

35

Shadow of the Tomb Raider 1080p

Radeon RX 6600 XT +91%

119

GeForce GTX 980

62

GTA 5 2160p

Radeon RX 6600 XT +1%

61

GeForce GTX 980

60

GTA 5 1440p

Radeon RX 6600 XT +32%

82

GeForce GTX 980

62

GTA 5 1080p

Radeon RX 6600 XT +49%

149

GeForce GTX 980

100

Radeon RX 6600 XT

VS

GeForce GTX 980

Graphics Card

Jul 2021

Release Date

Sep 2014

Navi II

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1968 MHz

Base Clock

1127 MHz

2589 MHz

Boost Clock

1216 MHz

2000 MHz

Memory Clock

1753 MHz

Memory

8GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

256bit

256.0GB/s

Bandwidth

224.4GB/s

Render Config

32

Compute Units

-

2048

Shading Units

2048

128

TMUs

128

64

ROPs

64

-

32

RT Cores

-

128 KB per Array

L1 Cache

48 KB (per SMM)

2 MB

L2 Cache

2 MB

32 MB

L3 Cache

-

Theoretical Performance

165.7 GPixel/s

Pixel Rate

77.82 GPixel/s

331.4 GTexel/s

Texture Rate

155.6 GTexel/s

21.21 TFLOPS

FP16 (half)

-

10.60 TFLOPS

FP32 (float)

4.981 TFLOPS

662.8 GFLOPS

FP64 (double)

155.6 GFLOPS

Board Design

160W

TDP

165W

450 W

Suggested PSU

450 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Navi 23

GPU Name

GM204

Navi 23 XT (215-130000006)

GPU Variant

GM204-400-A1

RDNA 2.0

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

5.2 billion

237 mm²

Die Size

398 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

5.2

6.7

Shader Model

6.4

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