AMD Radeon RX 6600 LE vs NVIDIA RTX A400
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 LE and 4GB VRAM RTX A400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6600 LE 's Advantages
Boost Clock has increased by 42% (2495MHz vs 1762MHz)
More VRAM (8GB vs 4GB)
Larger VRAM bandwidth (224.0GB/s vs 96.00GB/s)
1024 additional rendering cores
NVIDIA RTX A400 's Advantages
Lower TDP (50W vs 132W)
Score
Benchmark
FP32 (float)
Radeon RX 6600 LE
+230%
8.942 TFLOPS
RTX A400
2.706 TFLOPS
3DMark Time Spy
Radeon RX 6600 LE
+269%
7720
RTX A400
2091
Graphics Card
Dec 2023
Release Date
Apr 2024
Navi II
Generation
Quadro Ampere(Ax000)
Desktop
Type
Desktop
PCIe 4.0 x8
Bus Interface
PCIe 4.0 x8
Clock Speeds
1626 MHz
Base Clock
1417 MHz
2495 MHz
Boost Clock
1762 MHz
1750 MHz
Memory Clock
1500 MHz
Memory
8GB
Memory Size
4GB
GDDR6
Memory Type
GDDR6
128bit
Memory Bus
64bit
224.0GB/s
Bandwidth
96.00GB/s
Render Config
28
Compute Units
-
-
SM Count
6
1792
Shading Units
768
112
TMUs
24
64
ROPs
16
-
Tensor Cores
24
28
RT Cores
6
128 KB per Array
L1 Cache
128 KB (per SM)
2 MB
L2 Cache
2 MB
32 MB
L3 Cache
-
Theoretical Performance
159.7 GPixel/s
Pixel Rate
28.19 GPixel/s
279.4 GTexel/s
Texture Rate
42.29 GTexel/s
17.88 TFLOPS
FP16 (half)
2.706 TFLOPS
8.942 TFLOPS
FP32 (float)
2.706 TFLOPS
558.9 GFLOPS
FP64 (double)
42.29 GFLOPS
Board Design
132W
TDP
50W
300 W
Suggested PSU
250 W
1x HDMI 2.1
3x DisplayPort 1.4a
Outputs
4x mini-DisplayPort 1.4a
1x 8-pin
Power Connectors
None
Graphics Processor
Navi 23
GPU Name
GA107
Navi 23 XL
(215-130000016)
GPU Variant
-
RDNA 2.0
Architecture
Ampere
TSMC
Foundry
Samsung
7 nm
Process Size
8 nm
11.06 billion
Transistors
8.7 billion
237 mm²
Die Size
200 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.3
Vulkan
1.3
-
CUDA
8.6
6.7
Shader Model
6.8
