GPU Comparison
RADEON
AMD Radeon Pro 555X
CORE STATE
Polaris 21
VRAM
4 GB
CLOCK SPEED
—
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2018
VS
GEFORCE
GeForce 940MX
CORE STATE
GM107
VRAM
2 GB
CLOCK SPEED
861 MHz
TDP
23 W
BUS WIDTH
64 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro 555X
940MX
Core Specs
Shading Units
768
512
-33.3%
Shaders
768
512
-33.3%
TMUs
48
32
-33.3%
ROPs
16
8
-50.0%
Compute Units
12
—
Clocks
Base Clock
—
795 MHz
Boost Clock
—
861 MHz
GPU Clock
907 MHz
—
Memory Clock
1470 MHz
5.9 Gbps effective
1253 MHz
5 Gbps effective
Memory
Memory Size
4 GB
2 GB
VRAM (MB)
4,096
2,048
-50.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
64 bit
Bandwidth
94.08 GB/s
40.10 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SMM)
L2 Cache
1024 KB
1024 KB
Performance
Pixel Rate
14.51 GPixel/s
6.888 GPixel/s
Texture Rate
43.54 GTexel/s
27.55 GTexel/s
FP32 (TFLOPS)
1,393.2 GFLOPS
881.7 GFLOPS
FP64 (TFLOPS)
87.07 GFLOPS (1:16)
27.55 GFLOPS (1:32)
FP16 (TFLOPS)
1,393.2 GFLOPS (1:1)
—
Power
TDP
75 W
23 W
TDP (W)
75
23
-69.3%
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Maxwell
GPU Name
Polaris 21
GM107
Generation
Radeon Pro Mac
(500X Series)
GeForce 900M
Process Size
14 nm
28 nm
Transistors
3,000 million
1,870 million
Die Size
123 mm²
148 mm²
Foundry
GlobalFoundries
TSMC
Density
24.4M / mm²
12.6M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
3.0
CUDA
—
5.0
Shader Model
6.7
6.7 (5.1)
Physical
Slot Width
IGP
MXM Module
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
—
GeForce 800M
Successor
—
GeForce 10 Mobile