GPU Comparison
GEFORCE
NVIDIA 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
VS
GEFORCE
Tesla K20m
CORE STATE
GK110
VRAM
5 GB
CLOCK SPEED
—
TDP
225 W
BUS WIDTH
320 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
GTX 870M
Tesla K20m
Core Specs
Shading Units
1,344
2,496
+85.7%
Shaders
1,344
2,496
+85.7%
TMUs
112
208
+85.7%
ROPs
24
40
+66.7%
Clocks
Base Clock
941 MHz
—
Boost Clock
967 MHz
—
GPU Clock
—
706 MHz
Memory Clock
1250 MHz
5 Gbps effective
1300 MHz
5.2 Gbps effective
Memory
Memory Size
3 GB
5 GB
VRAM (MB)
3,072
5,120
+66.7%
Memory Type
GDDR5
GDDR5
Memory Bus
192 bit
320 bit
Bandwidth
120.0 GB/s
208.0 GB/s
Cache
L1 Cache
16 KB (per SMX)
16 KB (per SMX)
L2 Cache
384 KB
1280 KB
Performance
Pixel Rate
27.08 GPixel/s
36.71 GPixel/s
Texture Rate
108.3 GTexel/s
146.8 GTexel/s
FP32 (TFLOPS)
2.599 TFLOPS
3.524 TFLOPS
FP64 (TFLOPS)
108.3 GFLOPS (1:24)
1,174.8 GFLOPS (1:3)
Power
TDP
100 W
225 W
TDP (W)
100
225
+125.0%
Suggested PSU
—
550 W
Power Connectors
None
1x 6-pin + 1x 8-pin
Architecture
Architecture
Kepler
Kepler
GPU Name
GK104
GK110
Generation
GeForce 800M
Tesla Kepler
(Kxx)
Process Size
28 nm
28 nm
Transistors
3,540 million
7,080 million
Die Size
294 mm²
561 mm²
Foundry
TSMC
TSMC
Density
12.0M / mm²
12.6M / 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
3.5
Shader Model
6.5 (5.1)
6.5 (5.1)
Physical
Slot Width
MXM Module
Dual-slot
Length
—
267 mm
10.5 inches
Outputs
Portable Device Dependent
No outputs
Bus Interface
MXM-B (3.0)
PCIe 2.0 x16
Other
Launch Price
—
3,199 USD
Production
End-of-life
End-of-life
Predecessor
GeForce 700M
Tesla Fermi
Successor
GeForce 900M
Tesla Maxwell