AMD Radeon RX 6900 XTX vs AMD Radeon RX 6600 XT
GPU · Specs Compare
Graphics Card
Release Date
Unknown
Jul 2021
Generation
Navi II
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
2075 MHz
1968 MHz
Boost Clock
2435 MHz
2589 MHz
Memory Clock
2250 MHz
2000 MHz
Memory
Memory Size
16GB
8GB
Memory Type
GDDR6
GDDR6
Memory Bus
256bit
128bit
Bandwidth
576.0GB/s
256.0GB/s
Render Config
Compute Units
80
32
Shading Units
5120
2048
TMUs
320
128
ROPs
128
64
RT Cores
80
32
L1 Cache
128 KB per Array
128 KB per Array
L2 Cache
4 MB
2 MB
L3 Cache
128 MB
32 MB
Theoretical Performance
Pixel Rate
311.7 GPixel/s
165.7 GPixel/s
Texture Rate
779.2 GTexel/s
331.4 GTexel/s
FP16 (half)
49.87 TFLOPS
21.21 TFLOPS
FP32 (float)
24.93 TFLOPS
10.60 TFLOPS
FP64 (double)
1.558 TFLOPS
662.8 GFLOPS
Graphics Processor
GPU Name
Navi 21
Navi 23
GPU Variant
Navi 21 XTXH(215-121000247)
Navi 23 XT(215-130000006)
Architecture
RDNA 2.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
7 nm
7 nm
Transistors
26.8 billion
11.06 billion
Die Size
520 mm²
237 mm²
Board Design
TDP
330W
160W
Suggested PSU
700 W
450 W
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
2x 8-pin
1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.3
1.3
Shader Model
6.5
6.7
Benchmark
3DMark Time Spy
—
9,656
3DMark Time Spy Extreme
—
4,399
3DMark Speed Way
—
1,675
Battlefield 5 1080p
—
144
Shadow of the Tomb Raider 2160p
—
38
Cyberpunk 2077 2160p
—
29
Shadow of the Tomb Raider 1440p
—
72
Cyberpunk 2077 1440p
—
36
Shadow of the Tomb Raider 1080p
—
119
Battlefield 5 2160p
—
58
Blender
—
1,213
Cyberpunk 2077 1080p
—
58
Battlefield 5 1440p
—
111
GTA 5 2160p
—
61
GTA 5 1440p
—
82
GTA 5 1080p
—
149
▲ Specs Compare
Data sourced from official specifications and benchmark tests.