AMD Radeon RX 6600 XT vs AMD Radeon RX 7900 XTX

Compared 2 processors: AMD Radeon RX 6600 XT, vs AMD Radeon RX 7900 XTX. Below are specs, tests, pros and cons for each device

Review

Key Specs AMD Radeon RX 6600 XT and AMD Radeon RX 7900 XTX
Games
Performance in DirectX, OpenCL, Vulkan
AI/ML
AI workload testing
Professional Apps
3D modeling, video editing, rendering
Energy Efficiency
Power usage in various scenarios
NanoReview Score
Overall score by NanoReview

Tests & specs

Specs & test comparison

Games

FPS Table
Game title
1080p (High)
1080p (Ultra)
1440p (Ultra)
4K (Ultra)
Forza Horizon 5
133
73
58
38
253
180
159
120
The Witcher 3
121
96
68
34
270
255
184
93
Counter-Strike 2
185
128
93
49
324
232
169
87
Far Cry 6
104
90
65
35
209
187
168
106
Hogwarts Legacy
68
59
40
23
171
143
110
63
COD Modern Warfare 3
93
86
60
38
256
254
188
132
Ghost of Tsushima
74
61
42
23
170
142
124
79
Cyberpunk 2077
73
64
37
18
206
180
126
59
Shadow of the Tomb Raider
124
107
76
37
293
275
207
113
Avg FPS
1080p High108239
1080p Ultra85205
1440p Ultra60159
4K Ultra3395
DeviationLowLow

Benchmarks

CPU performance comparison across tasks
3DMark
Steel Nomad Lite Score
AMD Radeon RX 6600 XT
9026
AMD Radeon RX 7900 XTX
29862
Time Spy965230610
Solar Bay37503121915
Port Royal460316607
Fire Strike2866873014
Night Raid114842182333
GeekBench v6
GB6 Compute Score
AMD Radeon RX 6600 XT
84088
AMD Radeon RX 7900 XTX
224686
Background Blur208 frames/s423.9 frames/s
Face Detection114.6 frames/s270.8 frames/s
Horizon Detection2.91 Gpix/sec9.23 Gpix/sec
Edge Detection3.71 Gpix/sec13.7 Gpix/sec
Gaussian Blur3.38 Gpix/sec11.1 Gpix/sec
Feature Matching0.94 Gpix/sec1.74 Gpix/sec
Stereo Matching306 Gpix/sec871 Gpix/sec
Particle Physics11198.1 fps29891.2 fps
APIOpenCLOpenCL
PassMark
PassMark Graphics
AMD Radeon RX 6600 XT
16471
AMD Radeon RX 7900 XTX
31104
G2D Mark9111252
DirectX 11163 fps357 fps
DirectX 1261 fps128 fps
GPU Compute7706 Ops/s18188 Ops/s
GFXBench 5
Aztec Ruins (High 4K)
AMD Radeon RX 6600 XT
116.8 fps
AMD Radeon RX 7900 XTX
405.4 fps
Aztec Ruins (Normal)690.3 fps1822 fps
Car Chasen/a1721.5 fps
Manhattan 3.1.1 (1440p)525.1 fps1382 fps
T-Rex2173.5 fps5784.5 fps
ALU 22886.2 fps10100.5 fps
Driver Overhead 2487.2 fps326.5 fps
APIMetalOpenGL
OSOS XWindows
Tessellationn/a8087.1

Tech Specs

Specs & test comparison

General Info

Manufacturer AMD AMD
Build Discrete Discrete
Announced July, 30, 2021 November, 3, 2022
Form Factor PC use PC use
Use case Gaming Gaming
Segment Mid-range High-end
Architecture RDNA 2.0 RDNA 3.0
Codename Navi 23 Navi 31
Price 379 999

GPU

GPU Frequency 1968 MHz 1929 MHz
Boost GPU Frequency 2589 MHz 2498 MHz
Shader Units 2048 6144
TMUs 128 384
ROPs 64 192
Ray Tracing Cores 32 96
Tensor Cores No n/a
L1 cache 128 KB/core 256 KB/core
L2 cache 2000 KB/core 6000 KB/core
Instructions per Clock 2 IPC 4 IPC

Performance

Pixel Fill Rate 166 Gpix/sec 480 Gpix/sec
Texture Fill Rate 331 GTex/s 959 GTex/s
FLOPS 10.6 TFLOPS 61.4 TFLOPS

Process

Interface PCIe 4.0 x8 PCIe 4.0 x16
TGP 160 W 355 W
Process TSMC TSMC
Process tech. 7 nm 5 nm
Transistor Size 237 mm² 529 mm²
Transistor count 11 billion 57 billion
Transistor density 46.41 MTr/mm² 107.75 MTr/mm²

Memory

Interface GDDR6 GDDR6
Memory Frequency 2000 MHz 2500 MHz
Bus 128 bit 384 bit
ECC support No No
Effective Memory Speed 16000 MB/s 20000 MB/s
Memory Size 8 GB 24 GB
Max Throughput
AMD Radeon RX 6600 XT
256 GB/s
AMD Radeon RX 7900 XTX
960 GB/s

API

DirectX 12 12
Vulkan 1.3 1.3
OpenGL 4.6 4.6
DisplayPort 1.4a 2.1
Ray Tracing Yes Yes
DLSS No No

Results

After analyzing the data, we consider AMD Radeon RX 7900 XTX the clear winner in this comparison.

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