AMD Radeon RX 6600 VS AMD Radeon RX 7900 XT

amd

Brand

8GB GDDR6

Memory

1792

Cores

224 GB/s

Bandwidth

Radeon RX 6600

N/A Oct 2021 View Details

amd

Brand

20GB GDDR6

Memory

5376

Cores

800 GB/s

Bandwidth

Radeon RX 7900 XT

$580.61 Nov 2022 View Details

$599.99

$580.61

AMD Radeon RX 6600

8GB GDDR6 132W N/A Oct 2021

Radeon RX 6600

$329 • Oct 2021

Radeon RX 7900 XT

$899 • Nov 2022

AMD Radeon RX 7900 XT

20GB GDDR6 300W $580.61 Nov 2022

Specs Comparison

Specification	AMD Radeon RX 6600	AMD Radeon RX 7900 XT
Memory Size	8 GB	20 GB
Memory Type	GDDR6	GDDR6
TDP	132 W	300 W
Core Clock	N/A	N/A
Boost Clock	2491 MHz	2394 MHz
Memory Bandwidth	224 GB/s	800 GB/s
Process Size	7nm	5nm
Architecture	RDNA 2.0	RDNA 3.0
Shading Units	1792	5376
RT Cores	28	84
TMUs	112	336
ROPs	64	192
Memory Bus	128-bit	320-bit
Memory Clock	1750 MHz	2500 MHz
Pixel Rate	159.4 GPixel/s	459.6 GPixel/s
Texture Rate	224 GTexel/s	800 GTexel/s
FP32 Performance	8.928 GFLOPS	51.48 GFLOPS
L2 Cache	2.00 MB	6.00 MB
Die Size	237 mm²	529 mm²
Transistors	11060 Million	57700 Million
Required PSU	300 W	700 W
Power Connectors	1x 8-pin	2x 8-pin
Bus Interface	PCIe 4.0 x8	PCIe 4.0 x16
DirectX	12.2	12.2
Vulkan	1.3	1.3
OpenGL	4.6	4.6
Foundry	TSMC	TSMC

Comparison in Synthetic Benchmarks

3DMark Time Spy

Synthetic DirectX 12 benchmark that measures GPU performance in gaming workloads

Graphics Score

7173

AMD Radeon RX 6600

24671 (+244%)

AMD Radeon RX 7900 XT

Geekbench 6

Cross-platform benchmark that measures GPU compute performance using OpenCL and Metal APIs

OpenCL Score

58048

AMD Radeon RX 6600

203754 (+251%)

AMD Radeon RX 7900 XT

GFXBench 5.0

Cross-platform 3D graphics benchmark suite that measures GPU performance across different APIs

Aztec Ruins High (FPS)

96.4 FPS

AMD Radeon RX 6600

323.2 FPS (+235%)

AMD Radeon RX 7900 XT

PassMark G2D

Comprehensive 2D graphics benchmark that measures GPU performance in various graphics operations

G2D Mark

15115

AMD Radeon RX 6600

28872 (+91%)

AMD Radeon RX 7900 XT

Game Benchmarks Comparison (252 benchmarks)

Split Fiction

8.7 2025 • Action, Adventure • Hazelight Studios

1080p

| ultra

Radeon RX 7900 XT (+168%)

AVG 185 FPS

MIN 162 FPS

Radeon RX 6600

AVG 69 FPS

MIN 59 FPS

1440p

| ultra

Radeon RX 7900 XT (+194%)

AVG 144 FPS

MIN 122 FPS

Radeon RX 6600

AVG 49 FPS

MIN 41 FPS

2160p

| ultra

Radeon RX 7900 XT (+214%)

AVG 88 FPS

MIN 74 FPS

Radeon RX 6600

AVG 28 FPS

MIN 24 FPS

Winner

Loser

Marvel's Spider-Man 2

7.9 2025 • Action, Adventure • Insomniac Games, Nixxes Software

1080p

| ultra

Radeon RX 7900 XT (+182%)

AVG 127 FPS

MIN 112 FPS

Radeon RX 6600

AVG 45 FPS

MIN 34 FPS

1440p

| ultra

Radeon RX 7900 XT (+293%)

AVG 106 FPS

MIN 94 FPS

Radeon RX 6600

AVG 27 FPS

MIN 23 FPS

2160p

| ultra

Radeon RX 7900 XT (+353%)

AVG 68 FPS

MIN 61 FPS

Radeon RX 6600

AVG 15 FPS

MIN 12 FPS

1080p

| ultra

| RTX

Radeon RX 7900 XT (+333%)

AVG 52 FPS

MIN 44 FPS

Radeon RX 6600

AVG 12 FPS

MIN 9 FPS

1440p

| ultra

| RTX

Radeon RX 7900 XT (+425%)

AVG 42 FPS

MIN 36 FPS

Radeon RX 6600

AVG 8 FPS

MIN 5 FPS

2160p

| ultra

| RTX

Radeon RX 7900 XT (+800%)

AVG 27 FPS

MIN 22 FPS

Radeon RX 6600

AVG 3 FPS

MIN 2 FPS

Winner

Loser

Sniper Elite Resistance

8.5 2025 • Action, Adventure • Rebellion

1080p

| ultra

Radeon RX 7900 XT (+144%)

AVG 215 FPS

MIN 192 FPS

Radeon RX 6600

AVG 88 FPS

MIN 73 FPS

1440p

| ultra

Radeon RX 7900 XT (+173%)

AVG 172 FPS

MIN 152 FPS

Radeon RX 6600

AVG 63 FPS

MIN 54 FPS

2160p

| ultra

Radeon RX 7900 XT (+215%)

AVG 107 FPS

MIN 95 FPS

Radeon RX 6600

AVG 34 FPS

MIN 28 FPS

Winner

Loser

FINAL FANTASY VII REBIRTH

8.1 2025 • Action, Adventure, RPG • Square Enix

1080p

| ultra

Radeon RX 7900 XT (+200%)

AVG 114 FPS

MIN 99 FPS

Radeon RX 6600

AVG 38 FPS

MIN 33 FPS

1440p

| ultra

Radeon RX 7900 XT (+206%)

AVG 95 FPS

MIN 81 FPS

Radeon RX 6600

AVG 31 FPS

MIN 26 FPS

2160p

| ultra

Radeon RX 7900 XT (+244%)

AVG 62 FPS

MIN 53 FPS

Radeon RX 6600

AVG 18 FPS

MIN 15 FPS

Winner

Loser

Assetto Corsa EVO

6 2025 • Racing, Simulation, Sports, Early Access • KUNOS Simulazioni

1080p

| ultra

Radeon RX 7900 XT (+433%)

AVG 64 FPS

MIN 56 FPS

Radeon RX 6600

AVG 12 FPS

MIN 9 FPS

1440p

| ultra

Radeon RX 7900 XT (+470%)

AVG 57 FPS

MIN 50 FPS

Radeon RX 6600

AVG 10 FPS

MIN 8 FPS

2160p

| ultra

Radeon RX 7900 XT (+400%)

AVG 40 FPS

MIN 33 FPS

Radeon RX 6600

AVG 8 FPS

MIN 7 FPS

Winner

Loser

DYNASTY WARRIORS ORIGINS

8.6 2025 • Action, RPG, Strategy • KOEI TECMO GAMES CO., LTD.

1080p

| ultra

Radeon RX 7900 XT (+182%)

AVG 237 FPS

MIN 209 FPS

Radeon RX 6600

AVG 84 FPS

MIN 75 FPS

1440p

| ultra

Radeon RX 7900 XT (+230%)

AVG 178 FPS

MIN 161 FPS

Radeon RX 6600

AVG 54 FPS

MIN 44 FPS

2160p

| ultra

Radeon RX 7900 XT (+234%)

AVG 97 FPS

MIN 87 FPS

Radeon RX 6600

AVG 29 FPS

MIN 26 FPS

Winner

Loser

No more benchmarks available for this comparison

AMD Radeon RX 7900 XT Wins!

Based on 252 benchmarks across 76 games

Avg FPS

Radeon RX 6600

+213.7%

102

Avg FPS

Radeon RX 7900 XT