NVIDIA GeForce GTX 980 vs AMD Radeon RX 6600 XT

VS

NVIDIA GeForce GTX 980

AMD Radeon RX 6600 XT

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 980 and 8GB VRAM Radeon RX 6600 XT 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)

GeForce GTX 980

4.981 TFLOPS

Radeon RX 6600 XT +112%

10.6 TFLOPS

3DMark Time Spy

GeForce GTX 980

4322

Radeon RX 6600 XT +121%

9579

Shadow of the Tomb Raider 2160p

GeForce GTX 980

18

Radeon RX 6600 XT +111%

38

Shadow of the Tomb Raider 1440p

GeForce GTX 980

35

Radeon RX 6600 XT +105%

72

Shadow of the Tomb Raider 1080p

GeForce GTX 980

62

Radeon RX 6600 XT +91%

119

GTA 5 2160p

GeForce GTX 980

60

Radeon RX 6600 XT +1%

61

GTA 5 1440p

GeForce GTX 980

62

Radeon RX 6600 XT +32%

82

GTA 5 1080p

GeForce GTX 980

100

Radeon RX 6600 XT +49%

149

GeForce GTX 980

VS

Radeon RX 6600 XT

Graphics Card

Sep 2014

Release Date

Jul 2021

GeForce 900

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

1127 MHz

Base Clock

1968 MHz

1216 MHz

Boost Clock

2589 MHz

1753 MHz

Memory Clock

2000 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

128bit

224.4GB/s

Bandwidth

256.0GB/s

Render Config

-

Compute Units

32

-

2048

Shading Units

2048

128

TMUs

128

64

ROPs

64

-

RT Cores

32

48 KB (per SMM)

L1 Cache

128 KB per Array

2 MB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

77.82 GPixel/s

Pixel Rate

165.7 GPixel/s

155.6 GTexel/s

Texture Rate

331.4 GTexel/s

-

FP16 (half)

21.21 TFLOPS

4.981 TFLOPS

FP32 (float)

10.60 TFLOPS

155.6 GFLOPS

FP64 (double)

662.8 GFLOPS

Board Design

165W

TDP

160W

450 W

Suggested PSU

450 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

GM204

GPU Name

Navi 23

GM204-400-A1

GPU Variant

Navi 23 XT (215-130000006)

Maxwell 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

5.2 billion

Transistors

11.06 billion

398 mm²

Die Size

237 mm²

Graphics Features

12 (12_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.3

5.2

CUDA

-

6.4

Shader Model

6.7

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