AMD Radeon R9 M485X vs AMD Radeon RX 7900 XT
GPU · Specs Compare
Graphics Card
Release Date
May 2016
Nov 2022
Generation
Crystal System
Navi III
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 4.0 x16
Clock Speeds
Memory Clock
1250 MHz
2500 MHz
Base Clock
—
1387 MHz
Boost Clock
—
2394 MHz
Memory
Memory Size
8GB
20GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
320bit
Bandwidth
160.0GB/s
800.0GB/s
Render Config
Compute Units
32
84
Shading Units
2048
5376
TMUs
128
336
ROPs
32
192
L1 Cache
16 KB (per CU)
256 KB per Array
L2 Cache
512 KB
6 MB
RT Cores
—
84
L3 Cache
—
80 MB
Theoretical Performance
Pixel Rate
23.14 GPixel/s
459.6 GPixel/s
Texture Rate
92.54 GTexel/s
804.4 GTexel/s
FP16 (half)
2.961 TFLOPS
103.0 TFLOPS
FP32 (float)
2.961 TFLOPS
51.48 TFLOPS
FP64 (double)
185.1 GFLOPS
1.609 TFLOPS
Graphics Processor
GPU Name
Amethyst
Navi 31
GPU Variant
Amethyst XT
Navi 31 XT(215-145000156)
Architecture
GCN 3.0
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
5 billion
57.7 billion
Die Size
366 mm²
529 mm²
Board Design
TDP
250W
300W
Outputs
No outputs
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
Power Connectors
None
2x 8-pin
Suggested PSU
—
700 W
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
Benchmark
3DMark Time Spy
—
26,829
3DMark Time Spy Extreme
—
13,130
3DMark Speed Way
—
5,364
▲ Specs Compare
Data sourced from official specifications and benchmark tests.