AMD Radeon RX 6600 LE vs NVIDIA GeForce RTX 4090
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 LE and 24GB VRAM GeForce RTX 4090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6600 LE 's Advantages
Released 1 years and 3 months late
Lower TDP (132W vs 450W)
NVIDIA GeForce RTX 4090 's Advantages
Boost Clock has increased by 1% (2520MHz vs 2495MHz)
More VRAM (24GB vs 8GB)
Larger VRAM bandwidth (1.01TB/s vs 224.0GB/s)
14592 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon RX 6600 LE
8.942 TFLOPS
GeForce RTX 4090
+823%
82.58 TFLOPS
3DMark Time Spy
Radeon RX 6600 LE
7720
GeForce RTX 4090
+370%
36328
3DMark Time Spy Extreme
Radeon RX 6600 LE
3428
GeForce RTX 4090
+467%
19460
Graphics Card
Dec 2023
Release Date
Sep 2022
Navi II
Generation
GeForce 40
Desktop
Type
Desktop
PCIe 4.0 x8
Bus Interface
PCIe 4.0 x16
Clock Speeds
1626 MHz
Base Clock
2235 MHz
2495 MHz
Boost Clock
2520 MHz
1750 MHz
Memory Clock
1313 MHz
Memory
8GB
Memory Size
24GB
GDDR6
Memory Type
GDDR6X
128bit
Memory Bus
384bit
224.0GB/s
Bandwidth
1.01TB/s
Render Config
28
Compute Units
-
-
SM Count
128
1792
Shading Units
16384
112
TMUs
512
64
ROPs
176
-
Tensor Cores
512
28
RT Cores
128
128 KB per Array
L1 Cache
128 KB (per SM)
2 MB
L2 Cache
72 MB
32 MB
L3 Cache
-
Theoretical Performance
159.7 GPixel/s
Pixel Rate
443.5 GPixel/s
279.4 GTexel/s
Texture Rate
1290 GTexel/s
17.88 TFLOPS
FP16 (half)
82.58 TFLOPS
8.942 TFLOPS
FP32 (float)
82.58 TFLOPS
558.9 GFLOPS
FP64 (double)
1290 GFLOPS
Board Design
132W
TDP
450W
300 W
Suggested PSU
850 W
1x HDMI 2.1
3x DisplayPort 1.4a
Outputs
1x HDMI 2.1
3x DisplayPort 1.4a
1x 8-pin
Power Connectors
1x 16-pin
Graphics Processor
Navi 23
GPU Name
AD102
Navi 23 XL
(215-130000016)
GPU Variant
AD102-300-A1
RDNA 2.0
Architecture
Ada Lovelace
TSMC
Foundry
TSMC
7 nm
Process Size
5 nm
11.06 billion
Transistors
76.3 billion
237 mm²
Die Size
609 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
8.9
6.7
Shader Model
6.8
