GPU Comparison
GPU
Intel Iris Pro Graphics P580
CORE STATE
Skylake GT4e
VRAM
System Shared
CLOCK SPEED
1000 MHz
TDP
15 W
BUS WIDTH
System Shared
ARCHITECTURE
Generation 9.0
PROCESS
14 nm+
LAUNCH DATE
2015
VS
GEFORCE
GeForce GT 745M
CORE STATE
GK107
VRAM
2 GB
CLOCK SPEED
—
TDP
45 W
BUS WIDTH
128 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Iris Pro Graphics P580
GT 745M
Core Specs
Shading Units
576
384
-33.3%
Shaders
576
384
-33.3%
TMUs
72
32
-55.6%
ROPs
9
16
+77.8%
Execution Units
72
—
Clocks
Base Clock
350 MHz
—
Boost Clock
1000 MHz
—
GPU Clock
—
549 MHz
Memory Clock
System Shared
1000 MHz
4 Gbps effective
Memory
Memory Size
System Shared
2 GB
VRAM (MB)
—
2,048
Memory Type
System Shared
GDDR5
Memory Bus
System Shared
128 bit
Bandwidth
System Dependent
64.00 GB/s
Cache
L1 Cache
—
16 KB (per SMX)
L2 Cache
—
256 KB
Performance
Pixel Rate
9.000 GPixel/s
4.392 GPixel/s
Texture Rate
72.00 GTexel/s
17.57 GTexel/s
FP32 (TFLOPS)
1,152.0 GFLOPS
421.6 GFLOPS
FP64 (TFLOPS)
288.0 GFLOPS (1:4)
17.57 GFLOPS (1:24)
FP16 (TFLOPS)
2.304 TFLOPS (2:1)
—
Power
TDP
15 W
45 W
TDP (W)
15
45
+200.0%
Architecture
Architecture
Generation 9.0
Kepler
GPU Name
Skylake GT4e
GK107
Generation
HD Graphics-W
(Skylake)
GeForce 700M
Process Size
14 nm+
28 nm
Transistors
—
1,270 million
Die Size
—
118 mm²
Foundry
Intel
TSMC
Density
—
10.8M / mm²
API Support
DirectX
12 (12_1)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.175
OpenCL
3.0
3.0
CUDA
—
3.0
Shader Model
6.4
6.5 (5.1)
Physical
Slot Width
IGP
IGP
Outputs
Motherboard Dependent
Portable Device Dependent
Bus Interface
Ring Bus
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
—
GeForce 600M
Successor
—
GeForce 800M