GPU Comparison
GEFORCE
NVIDIA 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
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_opencl
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
GT 745M
GTX 870M
Core Specs
Shading Units
384
1,344
+250.0%
Shaders
384
1,344
+250.0%
TMUs
32
112
+250.0%
ROPs
16
24
+50.0%
Clocks
Base Clock
—
941 MHz
Boost Clock
—
967 MHz
GPU Clock
549 MHz
—
Memory Clock
1000 MHz
4 Gbps effective
1250 MHz
5 Gbps effective
Memory
Memory Size
2 GB
3 GB
VRAM (MB)
2,048
3,072
+50.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
192 bit
Bandwidth
64.00 GB/s
120.0 GB/s
Cache
L1 Cache
16 KB (per SMX)
16 KB (per SMX)
L2 Cache
256 KB
384 KB
Performance
Pixel Rate
4.392 GPixel/s
27.08 GPixel/s
Texture Rate
17.57 GTexel/s
108.3 GTexel/s
FP32 (TFLOPS)
421.6 GFLOPS
2.599 TFLOPS
FP64 (TFLOPS)
17.57 GFLOPS (1:24)
108.3 GFLOPS (1:24)
Power
TDP
45 W
100 W
TDP (W)
45
100
+122.2%
Power Connectors
—
None
Architecture
Architecture
Kepler
Kepler
GPU Name
GK107
GK104
Generation
GeForce 700M
GeForce 800M
Process Size
28 nm
28 nm
Transistors
1,270 million
3,540 million
Die Size
118 mm²
294 mm²
Foundry
TSMC
TSMC
Density
10.8M / mm²
12.0M / mm²
API Support
DirectX
12 (11_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.175
1.2.175
OpenCL
3.0
3.0
CUDA
3.0
3.0
Shader Model
6.5 (5.1)
6.5 (5.1)
Physical
Slot Width
IGP
MXM Module
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Other
Production
End-of-life
End-of-life
Predecessor
GeForce 600M
GeForce 700M
Successor
GeForce 800M
GeForce 900M