AMD Radeon RX 7900 XT vs AMD Radeon RX 6600

VS

AMD Radeon RX 7900 XT

AMD Radeon RX 6600

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 8GB VRAM Radeon RX 6600 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 XT 's Advantages

Released 1 years and 1 months late

More VRAM (20GB vs 8GB)

Larger VRAM bandwidth (800.0GB/s vs 224.0GB/s)

3584 additional rendering cores

AMD Radeon RX 6600 's Advantages

Boost Clock has increased by 4% (2491MHz vs 2394MHz)

Lower TDP (132W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 7900 XT +476%

51.48 TFLOPS

Radeon RX 6600

8.928 TFLOPS

3DMark Time Spy

Radeon RX 7900 XT +232%

26911

Radeon RX 6600

8084

Shadow of the Tomb Raider 2160p

Radeon RX 7900 XT +200%

102

Radeon RX 6600

34

Shadow of the Tomb Raider 1440p

Radeon RX 7900 XT +188%

205

Radeon RX 6600

71

Shadow of the Tomb Raider 1080p

Radeon RX 7900 XT +137%

299

Radeon RX 6600

126

Cyberpunk 2077 2160p

Radeon RX 7900 XT +108%

50

Radeon RX 6600

24

Cyberpunk 2077 1440p

Radeon RX 7900 XT +203%

94

Radeon RX 6600

31

Cyberpunk 2077 1080p

Radeon RX 7900 XT +216%

158

Radeon RX 6600

50

GTA 5 2160p

Radeon RX 7900 XT +183%

170

Radeon RX 6600

60

GTA 5 1440p

Radeon RX 7900 XT +157%

170

Radeon RX 6600

66

GTA 5 1080p

Radeon RX 7900 XT +4%

190

Radeon RX 6600

182

Radeon RX 7900 XT

VS

Radeon RX 6600

Graphics Card

Nov 2022

Release Date

Oct 2021

Navi III

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

1387 MHz

Base Clock

1626 MHz

2394 MHz

Boost Clock

2491 MHz

2500 MHz

Memory Clock

1750 MHz

Memory

20GB

Memory Size

8GB

GDDR6

Memory Type

GDDR6

320bit

Memory Bus

128bit

800.0GB/s

Bandwidth

224.0GB/s

Render Config

84

Compute Units

28

-

5376

Shading Units

1792

336

TMUs

112

192

ROPs

64

-

84

RT Cores

28

256 KB per Array

L1 Cache

128 KB per Array

6 MB

L2 Cache

2 MB

80 MB

L3 Cache

32 MB

Theoretical Performance

459.6 GPixel/s

Pixel Rate

159.4 GPixel/s

804.4 GTexel/s

Texture Rate

279.0 GTexel/s

103.0 TFLOPS

FP16 (half)

17.86 TFLOPS

51.48 TFLOPS

FP32 (float)

8.928 TFLOPS

1.609 TFLOPS

FP64 (double)

558.0 GFLOPS

Board Design

300W

TDP

132W

700 W

Suggested PSU

300 W

1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Navi 31

GPU Name

Navi 23

Navi 31 XT (215-145000156)

GPU Variant

Navi 23 XL (215-130000016)

RDNA 3.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

7 nm

57.7 billion

Transistors

11.06 billion

529 mm²

Die Size

237 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.2

OpenCL

2.1

1.3

Vulkan

1.3

-

6.7

Shader Model

6.5

Related GPU Comparisons

1

AMD Radeon RX 7900 XT vs AMD Radeon R5 235 OEM

2

AMD Radeon RX 7900 XT vs AMD Radeon R7 250XE

3

AMD Radeon RX 7900 XT vs ATI FirePro V5700

4

AMD Radeon RX 7900 XT vs NVIDIA GeForce 9400 GT Rev. 3

5

AMD Radeon RX 7900 XT vs NVIDIA RTX A1000

6

AMD Radeon RX 7900 XT vs NVIDIA GeForce RTX 5060

7

AMD Radeon RX 7900 XT vs AMD Radeon RX 7800 XT

8

AMD Radeon RX 7900 XT vs ATI Radeon HD 4810

9

AMD Radeon RX 7900 XT vs AMD Radeon RX 6800 XT

10

AMD Radeon RX 7900 XT vs NVIDIA RTX 2000 Ada Generation

Related News

1

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

2

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

3

CXMT Reportedly Achieves 80% Yield in DDR5 Production

4

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

5

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

6

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

7

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

8

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

9

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

10

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption