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 GTX 870M
CORE STATE
GK104
VRAM
3 GB
CLOCK SPEED
967 MHz
TDP
100 W
BUS WIDTH
192 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro 555X
GTX 870M
Core Specs
Shading Units
768
1,344
+75.0%
Shaders
768
1,344
+75.0%
TMUs
48
112
+133.3%
ROPs
16
24
+50.0%
Compute Units
12
—
Clocks
Base Clock
—
941 MHz
Boost Clock
—
967 MHz
GPU Clock
907 MHz
—
Memory Clock
1470 MHz
5.9 Gbps effective
1250 MHz
5 Gbps effective
Memory
Memory Size
4 GB
3 GB
VRAM (MB)
4,096
3,072
-25.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
192 bit
Bandwidth
94.08 GB/s
120.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
1024 KB
384 KB
Performance
Pixel Rate
14.51 GPixel/s
27.08 GPixel/s
Texture Rate
43.54 GTexel/s
108.3 GTexel/s
FP32 (TFLOPS)
1,393.2 GFLOPS
2.599 TFLOPS
FP64 (TFLOPS)
87.07 GFLOPS (1:16)
108.3 GFLOPS (1:24)
FP16 (TFLOPS)
1,393.2 GFLOPS (1:1)
—
Power
TDP
75 W
100 W
TDP (W)
75
100
+33.3%
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Kepler
GPU Name
Polaris 21
GK104
Generation
Radeon Pro Mac
(500X Series)
GeForce 800M
Process Size
14 nm
28 nm
Transistors
3,000 million
3,540 million
Die Size
123 mm²
294 mm²
Foundry
GlobalFoundries
TSMC
Density
24.4M / mm²
12.0M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.175
OpenCL
2.1
3.0
CUDA
—
3.0
Shader Model
6.7
6.5 (5.1)
Physical
Slot Width
IGP
MXM Module
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
MXM-B (3.0)
Other
Production
End-of-life
End-of-life
Predecessor
—
GeForce 700M
Successor
—
GeForce 900M