GPU Comparison
RADEON
AMD Radeon RX 6600S
CORE STATE
Navi 23
VRAM
4 GB
CLOCK SPEED
2000 MHz
TDP
80 W
BUS WIDTH
128 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2022
VS
RADEON
Radeon RX 7900 XT
CORE STATE
Navi 31
VRAM
20 GB
CLOCK SPEED
2394 MHz
TDP
300 W
BUS WIDTH
320 bit
ARCHITECTURE
RDNA 3.0
PROCESS
5 nm
LAUNCH DATE
2022
PERFORMANCE BENCHMARKS
geekbench_opencl
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
3dmark_3dmark_steel_nomad_dx12
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
RX 6600S
RX 7900 XT
Core Specs
Shading Units
1,792
5,376
+200.0%
Shaders
1,792
5,376
+200.0%
TMUs
112
336
+200.0%
ROPs
64
192
+200.0%
Compute Units
28
84
+200.0%
Clocks
Base Clock
1700 MHz
1387 MHz
Boost Clock
2000 MHz
2394 MHz
Game Clock
1881 MHz
2025 MHz
Shader Clock
—
2025 MHz
Memory Clock
1750 MHz
14 Gbps effective
2500 MHz
20 Gbps effective
Memory
Memory Size
4 GB
20 GB
VRAM (MB)
4,096
20,480
+400.0%
Memory Type
GDDR6
GDDR6
Memory Bus
128 bit
320 bit
Bandwidth
224.0 GB/s
800.0 GB/s
Cache
L1 Cache
128 KB per Array
256 KB per Array
L2 Cache
2 MB
6 MB
L3 Cache
32 MB
80 MB
L0 Cache
32 KB per WGP
64 KB per WGP
Performance
Pixel Rate
128.0 GPixel/s
459.6 GPixel/s
Texture Rate
224.0 GTexel/s
804.4 GTexel/s
FP32 (TFLOPS)
7.168 TFLOPS
51.48 TFLOPS
FP64 (TFLOPS)
448.0 GFLOPS (1:16)
1.609 TFLOPS (1:32)
FP16 (TFLOPS)
14.34 TFLOPS (2:1)
103.0 TFLOPS (2:1)
AI/RT
RT Cores
28
84
+200.0%
Matrix Cores
—
168
Power
TDP
80 W
300 W
TDP (W)
80
300
+275.0%
Suggested PSU
—
700 W
Power Connectors
None
2x 8-pin
Architecture
Architecture
RDNA 2.0
RDNA 3.0
GPU Name
Navi 23
Navi 31
Codename
—
Plum Bonito
Generation
Navi Mobile
(RX 6000M)
Navi III
(RX 7000)
Process Size
7 nm
5 nm
Transistors
11,060 million
57,700 million
Die Size
237 mm²
529 mm²
Foundry
TSMC
TSMC
Density
46.7M / mm²
109.1M / mm²
AMD MCM
GCD Transistors
—
45,400 million
GCD Die Size
—
304.35 mm²
MCD Transistors
—
2,050 million x6
API Support
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
2.1
2.2
Shader Model
6.8
6.8
Physical
Slot Width
IGP
Dual-slot
Length
—
276 mm
10.9 inches
Height
—
110 mm
4.3 inches
Outputs
Portable Device Dependent
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x16
Other
Launch Price
—
899 USD
Production
End-of-life
End-of-life
Predecessor
Polaris Mobile
Navi II
Successor
—
Navi IV