Home GPU Comparison AMD Radeon RX 6600 XT vs NVIDIA GeForce RTX 4090 D

AMD Radeon RX 6600 XT vs NVIDIA GeForce RTX 4090 D

AMD Radeon RX 6600 XT
VS
NVIDIA GeForce RTX 4090 D
AMD Radeon RX 6600 XT NVIDIA GeForce RTX 4090 D
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 XT and 24GB VRAM GeForce RTX 4090 D to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 XT 's Advantages
Boost Clock has increased by 3% (2589MHz vs 2520MHz)
Lower TDP (160W vs 425W)
NVIDIA GeForce RTX 4090 D 's Advantages
Released 2 years and 5 months late
More VRAM (24GB vs 8GB)
Larger VRAM bandwidth (1008GB/s vs 256.0GB/s)
12544 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon RX 6600 XT
10.6 TFLOPS
GeForce RTX 4090 D +593%
73.54 TFLOPS
3DMark Time Spy
Radeon RX 6600 XT
9578
GeForce RTX 4090 D +257%
34288
Radeon RX 6600 XT
VS
GeForce RTX 4090 D

Graphics Card

Jul 2021
Release Date
Dec 2023
Navi II
Generation
GeForce 40
Desktop
Type
Desktop
PCIe 4.0 x8
Bus Interface
PCIe 4.0 x16

Clock Speeds

1968 MHz
Base Clock
2280 MHz
2589 MHz
Boost Clock
2520 MHz
2000 MHz
Memory Clock
1313 MHz

Memory

8GB
Memory Size
24GB
GDDR6
Memory Type
GDDR6X
128bit
Memory Bus
384bit
256.0GB/s
Bandwidth
1008GB/s

Render Config

-
SM Count
114
32
Compute Units
-
2048
Shading Units
14592
128
TMUs
456
64
ROPs
176
-
Tensor Cores
456
32
RT Cores
114
128 KB per Array
L1 Cache
128 KB (per SM)
2 MB
L2 Cache
72 MB

Theoretical Performance

165.7 GPixel/s
Pixel Rate
443.5 GPixel/s
331.4 GTexel/s
Texture Rate
1149 GTexel/s
21.21 TFLOPS
FP16 (half)
73.54 TFLOPS
10.60 TFLOPS
FP32 (float)
73.54 TFLOPS
662.8 GFLOPS
FP64 (double)
1149 GFLOPS

Graphics Processor

Navi 23
GPU Name
AD102
Navi 23 XT (215-130000006)
GPU Variant
AD102-250-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

Board Design

160W
TDP
425W
450 W
Suggested PSU
800 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 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
6.7

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