GPU Comparison
RADEON
AMD Radeon RX 6600 LE
CORE STATE
Navi 23
VRAM
8 GB
CLOCK SPEED
2495 MHz
TDP
132 W
BUS WIDTH
128 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2023
VS
GEFORCE
B300
CORE STATE
GB110
VRAM
144 GB
CLOCK SPEED
2032 MHz
TDP
1400 W
BUS WIDTH
4096 bit
ARCHITECTURE
Blackwell Ultra
PROCESS
5 nm
LAUNCH DATE
2025
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
RX 6600 LE
B300
Core Specs
Shading Units
1,792
18,944
+957.1%
Shaders
1,792
18,944
+957.1%
TMUs
112
592
+428.6%
ROPs
64
24
-62.5%
Compute Units
28
—
SM Count
—
148
Clocks
Base Clock
1626 MHz
1665 MHz
Boost Clock
2495 MHz
2032 MHz
Game Clock
2045 MHz
—
Memory Clock
1750 MHz
14 Gbps effective
2000 MHz
8 Gbps effective
Memory
Memory Size
8 GB
144 GB
VRAM (MB)
8,192
147,456
+1700.0%
Memory Type
GDDR6
HBM3e
Memory Bus
128 bit
4096 bit
Bandwidth
224.0 GB/s
4.10 TB/s
Cache
L1 Cache
128 KB per Array
256 KB (per SM)
L2 Cache
2 MB
50 MB
L3 Cache
32 MB
—
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
159.7 GPixel/s
48.77 GPixel/s
Texture Rate
279.4 GTexel/s
1,202.9 GTexel/s
FP32 (TFLOPS)
8.942 TFLOPS
76.99 TFLOPS
FP64 (TFLOPS)
558.9 GFLOPS (1:16)
1,202.9 GFLOPS (1:64)
FP16 (TFLOPS)
17.88 TFLOPS (2:1)
1,231.8 TFLOPS (16:1)
AI/RT
RT Cores
28
—
Tensor Cores
—
592
Power
TDP
132 W
1400 W
TDP (W)
132
1,400
+960.6%
Suggested PSU
300 W
1800 W
Power Connectors
1x 8-pin
—
Architecture
Architecture
RDNA 2.0
Blackwell Ultra
GPU Name
Navi 23
GB110
Generation
Navi II
(RX 6000)
Server Blackwell
(Bxx)
Process Size
7 nm
5 nm
Transistors
11,060 million
104,000 million
Die Size
237 mm²
—
Foundry
TSMC
TSMC
Density
46.7M / mm²
—
API Support
DirectX
12 Ultimate (12_2)
—
OpenGL
4.6
—
Vulkan
1.4
—
OpenCL
2.1
3.0
CUDA
—
10.3
Shader Model
6.8
—
Physical
Slot Width
Dual-slot
SXM Module
Length
190 mm
7.5 inches
—
Height
110 mm
4.3 inches
—
Outputs
1x HDMI 2.13x DisplayPort 1.4a
No outputs
Bus Interface
PCIe 4.0 x8
PCIe 5.0 x16
Other
Production
Active
Active
Predecessor
Navi
Server Hopper
Successor
Navi III
Server Rubin