Home GPU Comparison AMD Radeon RX 6800 XT vs NVIDIA GeForce RTX 4090

AMD Radeon RX 6800 XT vs NVIDIA GeForce RTX 4090

AMD Radeon RX 6800 XT
VS
NVIDIA GeForce RTX 4090
AMD Radeon RX 6800 XT
NVIDIA GeForce RTX 4090
We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT 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 6800 XT 's Advantages
Lower TDP (300W vs 450W)
NVIDIA GeForce RTX 4090 's Advantages
Released 1 years and 11 months late
Boost Clock has increased by 12% (2520MHz vs 2250MHz)
More VRAM (24GB vs 16GB)
Larger VRAM bandwidth (1.01TB/s vs 512.0GB/s)
11776 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon RX 6800 XT
20.74 TFLOPS
GeForce RTX 4090 +298%
82.58 TFLOPS
3DMark Time Spy
Radeon RX 6800 XT
19441
GeForce RTX 4090 +87%
36499
Blender
Radeon RX 6800 XT
2650
GeForce RTX 4090 +367%
12393
Shadow of the Tomb Raider 2160p
Radeon RX 6800 XT
72
GeForce RTX 4090 +156%
185
Shadow of the Tomb Raider 1440p
Radeon RX 6800 XT
134
GeForce RTX 4090 +108%
280
Shadow of the Tomb Raider 1080p
Radeon RX 6800 XT
188
GeForce RTX 4090 +61%
304
Cyberpunk 2077 2160p
Radeon RX 6800 XT
60
GeForce RTX 4090 +56%
94
Cyberpunk 2077 1440p
Radeon RX 6800 XT
69
GeForce RTX 4090 +168%
185
Cyberpunk 2077 1080p
Radeon RX 6800 XT
102
GeForce RTX 4090 +91%
195
Battlefield 5 2160p
Radeon RX 6800 XT
104
GeForce RTX 4090 +78%
186
Battlefield 5 1440p
Radeon RX 6800 XT
179
GeForce RTX 4090 +13%
203
Battlefield 5 1080p
Radeon RX 6800 XT
199
GeForce RTX 4090 +7%
213
GTA 5 2160p
Radeon RX 6800 XT
111
GeForce RTX 4090 +48%
165
GTA 5 1440p
Radeon RX 6800 XT
138
GeForce RTX 4090 +34%
185
GTA 5 1080p
Radeon RX 6800 XT
178
GeForce RTX 4090 +4%
186
Horizon Forbidden West 1080p
Radeon RX 6800 XT
107
GeForce RTX 4090 +48%
159
Horizon Forbidden West 1440p
Radeon RX 6800 XT
52
GeForce RTX 4090 +159%
135
Radeon RX 6800 XT
VS
GeForce RTX 4090

Graphics Card

Oct 2020
Release Date
Sep 2022
Navi II
Generation
GeForce 40
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16

Clock Speeds

1825 MHz
Base Clock
2235 MHz
2250 MHz
Boost Clock
2520 MHz
2000 MHz
Memory Clock
1313 MHz

Memory

16GB
Memory Size
24GB
GDDR6
Memory Type
GDDR6X
256bit
Memory Bus
384bit
512.0GB/s
Bandwidth
1.01TB/s

Render Config

72
Compute Units
-
-
SM Count
128
4608
Shading Units
16384
288
TMUs
512
128
ROPs
176
-
Tensor Cores
512
72
RT Cores
128
128 KB per Array
L1 Cache
128 KB (per SM)
4 MB
L2 Cache
72 MB
128 MB
L3 Cache
-

Theoretical Performance

288.0 GPixel/s
Pixel Rate
443.5 GPixel/s
648.0 GTexel/s
Texture Rate
1290 GTexel/s
41.47 TFLOPS
FP16 (half)
82.58 TFLOPS
20.74 TFLOPS
FP32 (float)
82.58 TFLOPS
1296 GFLOPS
FP64 (double)
1290 GFLOPS

Board Design

300W
TDP
450W
700 W
Suggested PSU
850 W
1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C
Outputs
1x HDMI 2.13x DisplayPort 1.4a
2x 8-pin
Power Connectors
1x 16-pin

Graphics Processor

Navi 21
GPU Name
AD102
Navi 21 XT (215-121000177)
GPU Variant
AD102-300-A1
RDNA 2.0
Architecture
Ada Lovelace
TSMC
Foundry
TSMC
7 nm
Process Size
5 nm
26.8 billion
Transistors
76.3 billion
520 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
6.5
Shader Model
6.8

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