AMD Radeon RX 7800M vs AMD Radeon RX 6800 XT
GPU Specs Compare
Graphics Card
Release Date
Sep 2024
Oct 2020
Generation
Navi Mobile
Navi II
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1295 MHz
1825 MHz
Boost Clock
2335 MHz
2250 MHz
Memory Clock
2250 MHz
2000 MHz
Memory
Memory Size
12GB
16GB
Memory Type
GDDR6
GDDR6
Memory Bus
192bit
256bit
Bandwidth
432.0GB/s
512.0GB/s
Render Config
Compute Units
60
72
Shading Units
3840
4608
TMUs
240
288
ROPs
96
128
RT Cores
60
72
L1 Cache
128 KB per Array
128 KB per Array
L2 Cache
4 MB
4 MB
L3 Cache
48 MB
128 MB
Theoretical Performance
Pixel Rate
224.2 GPixel/s
288.0 GPixel/s
Texture Rate
560.4 GTexel/s
648.0 GTexel/s
FP16 (half)
71.73 TFLOPS
41.47 TFLOPS
FP32 (float)
35.87 TFLOPS
20.74 TFLOPS
FP64 (double)
1121 GFLOPS
1296 GFLOPS
Graphics Processor
GPU Name
Navi 32
Navi 21
GPU Variant
Navi 32 XT(215-180000006)
Navi 21 XT(215-121000177)
Architecture
RDNA 3.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
7 nm
Transistors
28.1 billion
26.8 billion
Die Size
346 mm²
520 mm²
Board Design
TDP
180W
300W
Outputs
Portable Device Dependent
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
None
2x 8-pin
Suggested PSU
-
700 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.2
2.1
Vulkan
1.3
1.3
Shader Model
6.8
6.5
📊 Benchmark
3DMark Time Spy
-
19,329