AMD Radeon R9 M485X vs AMD Radeon RX 7800M
GPU · Specs Compare
Graphics Card
Release Date
May 2016
Sep 2024
Generation
Crystal System
Navi Mobile
Type
Mobile
Mobile
Bus Interface
MXM-B (3.0)
PCIe 4.0 x16
Clock Speeds
Memory Clock
1250 MHz
2250 MHz
Base Clock
—
1295 MHz
Boost Clock
—
2335 MHz
Memory
Memory Size
8GB
12GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
192bit
Bandwidth
160.0GB/s
432.0GB/s
Render Config
Compute Units
32
60
Shading Units
2048
3840
TMUs
128
240
ROPs
32
96
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
4 MB
RT Cores
—
60
L3 Cache
—
48 MB
Theoretical Performance
Pixel Rate
23.14 GPixel/s
224.2 GPixel/s
Texture Rate
92.54 GTexel/s
560.4 GTexel/s
FP16 (half)
2.961 TFLOPS
71.73 TFLOPS
FP32 (float)
2.961 TFLOPS
35.87 TFLOPS
FP64 (double)
185.1 GFLOPS
1121 GFLOPS
Graphics Processor
GPU Name
Amethyst
Navi 32
GPU Variant
Amethyst XT
Navi 32 XT(215-180000006)
Architecture
GCN 3.0
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
5 billion
28.1 billion
Die Size
366 mm²
346 mm²
Board Design
TDP
250W
180W
Outputs
No outputs
Portable Device Dependent
Power Connectors
None
None
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.0
2.2
Vulkan
1.2
1.3
Shader Model
6.3
6.8
▲ Specs Compare
Data sourced from official specifications and benchmark tests.