Radeon RX 6400 vs Radeon RX 7800 XT
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 16GB VRAM Radeon RX 7800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6400 's Advantages
Lower TDP (53W vs 263W)
Radeon RX 7800 XT 's Advantages
Released 1 years and 7 months late
Boost Clock has increased by 5% (2430MHz vs 2321MHz)
More VRAM (16GB vs 4GB)
Larger VRAM bandwidth (624.1GB/s vs 128.0GB/s)
3072 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon RX 6400
3565
Radeon RX 7800 XT
+946%
37320
3DMark Time Spy
Radeon RX 6400
3585
Radeon RX 7800 XT
+460%
20086
3DMark Time Spy Extreme
Radeon RX 6400
1662
Radeon RX 7800 XT
+468%
9448
3DMark Speed Way
Radeon RX 6400
103
Radeon RX 7800 XT
+3762%
3978
Blender
Radeon RX 6400
334
Radeon RX 7800 XT
+694%
2652
Shadow of the Tomb Raider 2160p
Radeon RX 6400
8
Radeon RX 7800 XT
+925%
82
Shadow of the Tomb Raider 1440p
Radeon RX 6400
20
Radeon RX 7800 XT
+690%
158
Shadow of the Tomb Raider 1080p
Radeon RX 6400
35
Radeon RX 7800 XT
+568%
234
Cyberpunk 2077 2160p
Radeon RX 6400
8
Radeon RX 7800 XT
+375%
38
Cyberpunk 2077 1440p
Radeon RX 6400
11
Radeon RX 7800 XT
+645%
82
Cyberpunk 2077 1080p
Radeon RX 6400
21
Radeon RX 7800 XT
+500%
126
Graphics Card
Jan 2022
Release Date
Aug 2023
Navi II
Generation
Navi III
Desktop
Type
Desktop
PCIe 4.0 x4
Bus Interface
PCIe 4.0 x16
Clock Speeds
1923 MHz
Base Clock
1295 MHz
2321 MHz
Boost Clock
2430 MHz
2000 MHz
Memory Clock
2438 MHz
Memory
4GB
Memory Size
16GB
GDDR6
Memory Type
GDDR6
64bit
Memory Bus
256bit
128.0GB/s
Bandwidth
624.1GB/s
Render Config
12
Compute Units
60
768
Shading Units
3840
48
TMUs
240
32
ROPs
96
12
RT Cores
60
128 KB per Array
L1 Cache
128 KB per Array
1024 KB
L2 Cache
4 MB
16 MB
L3 Cache
64 MB
Theoretical Performance
74.27 GPixel/s
Pixel Rate
233.3 GPixel/s
111.4 GTexel/s
Texture Rate
583.2 GTexel/s
7.130 TFLOPS
FP16 (half)
74.65 TFLOPS
3.565 TFLOPS
FP32 (float)
37.32 TFLOPS
222.8 GFLOPS
FP64 (double)
1166 GFLOPS
Board Design
53W
TDP
263W
250 W
Suggested PSU
600 W
1x HDMI 2.1
1x DisplayPort 1.4a
Outputs
1x HDMI 2.1a
3x DisplayPort 2.1
None
Power Connectors
2x 8-pin
Graphics Processor
Navi 24
GPU Name
Navi 32
Navi 24 XL
(215-135000046)
GPU Variant
Navi 32 XT
(215-180000006)
RDNA 2.0
Architecture
RDNA 3.0
TSMC
Foundry
TSMC
6 nm
Process Size
5 nm
5.4 billion
Transistors
28.1 billion
107 mm²
Die Size
346 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.2
OpenCL
2.2
1.3
Vulkan
1.3
6.7
Shader Model
6.7
