GeForce RTX 4090 D vs Radeon RX 6800
We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 D and 16GB VRAM Radeon RX 6800 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 4090 D Advantages
Released 3 years and 2 months late
Boost Clock has increased by 20% (2520MHz vs 2105MHz)
More VRAM (24GB vs 16GB)
Larger VRAM bandwidth (1008GB/s vs 512.0GB/s)
10752 additional rendering cores
Radeon RX 6800 Advantages
Lower TDP (250W vs 425W)
Score
Benchmark
FP32 (float)
GeForce RTX 4090 D
+354%
73540
Radeon RX 6800
16170
3DMark Time Spy
GeForce RTX 4090 D
+111%
34258
Radeon RX 6800
16182
3DMark Time Spy Extreme
GeForce RTX 4090 D
+130%
17914
Radeon RX 6800
7771
3DMark Speed Way
GeForce RTX 4090 D
+217%
9719
Radeon RX 6800
3062
Graphics Card
Dec 2023
Release Date
Oct 2020
GeForce 40
Generation
Navi II
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
2280 MHz
Base Clock
1700 MHz
2520 MHz
Boost Clock
2105 MHz
1313 MHz
Memory Clock
2000 MHz
Memory
24GB
Memory Size
16GB
GDDR6X
Memory Type
GDDR6
384bit
Memory Bus
256bit
1008GB/s
Bandwidth
512.0GB/s
Render Config
-
Compute Units
60
114
SM Count
-
14592
Shading Units
3840
456
TMUs
240
176
ROPs
96
456
Tensor Cores
-
114
RT Cores
60
128 KB (per SM)
L1 Cache
128 KB per Array
72 MB
L2 Cache
4 MB
-
L3 Cache
128 MB
Theoretical Performance
443.5 GPixel/s
Pixel Rate
202.1 GPixel/s
1149 GTexel/s
Texture Rate
505.2 GTexel/s
73.54 TFLOPS
FP16 (half)
32.33 TFLOPS
73.54 TFLOPS
FP32 (float)
16.17 TFLOPS
1149 GFLOPS
FP64 (double)
1010 GFLOPS
Board Design
425W
TDP
250W
800 W
Suggested PSU
600 W
1x HDMI 2.1
3x DisplayPort 1.4a
3x DisplayPort 1.4a
Outputs
1x HDMI 2.1
2x DisplayPort 1.4a
1x USB Type-C
2x DisplayPort 1.4a
1x USB Type-C
1x 16-pin
Power Connectors
2x 8-pin
Graphics Processor
AD102
GPU Name
Navi 21
AD102-250-A1
GPU Variant
Navi 21 XL
(215-121000187)
(215-121000187)
Ada Lovelace
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
5 nm
Process Size
7 nm
76.3 billion
Transistors
26.8 billion
609 mm²
Die Size
520 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
2.1
1.3
Vulkan
1.3
8.9
CUDA
-
6.7
Shader Model
6.5
