AMD Radeon RX 7900M vs AMD Radeon R9 285X
GPU Specs Compare
Graphics Card
Release Date
Oct 2023
Unknown
Generation
Navi Mobile
Volcanic Islands
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1825 MHz
-
Boost Clock
2090 MHz
-
Memory Clock
2250 MHz
1375 MHz
Memory
Memory Size
16GB
3GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
384bit
Bandwidth
576.0GB/s
264.0GB/s
Render Config
Compute Units
72
32
Shading Units
4608
2048
TMUs
288
128
ROPs
192
32
RT Cores
72
-
L1 Cache
256 KB per Array
16 KB (per CU)
L2 Cache
6 MB
768 KB
L3 Cache
64 MB
-
Theoretical Performance
Pixel Rate
401.3 GPixel/s
32.06 GPixel/s
Texture Rate
601.9 GTexel/s
128.3 GTexel/s
FP16 (half)
77.05 TFLOPS
-
FP32 (float)
38.52 TFLOPS
4.104 TFLOPS
FP64 (double)
1204 GFLOPS
-
Graphics Processor
GPU Name
Navi 31
Tonga
GPU Variant
Navi 31
Tonga XT(215-0851313)
Architecture
RDNA 3.0
GCN 3.0
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
57.7 billion
5 billion
Die Size
529 mm²
366 mm²
Board Design
TDP
180W
200W
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin + 1x 8-pin
Suggested PSU
-
550 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.2
2.0
Vulkan
1.3
1.2
Shader Model
6.8
6.3
📊 Benchmark
3DMark Time Spy
18,218
-
3DMark Time Spy Extreme
8,440
-
3DMark Speed Way
3,943
-
Blender
2,583
-