GPU Comparison
GEFORCE
NVIDIA GeForce GTX 680
CORE STATE
GK104
VRAM
2 GB
CLOCK SPEED
1058 MHz
TDP
195 W
BUS WIDTH
256 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
VS
GEFORCE
GeForce GTX 850M
CORE STATE
GM107
VRAM
2 GB
CLOCK SPEED
—
TDP
45 W
BUS WIDTH
128 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
GTX 680
GTX 850M
Core Specs
Shading Units
1,536
640
-58.3%
Shaders
1,536
640
-58.3%
TMUs
128
40
-68.8%
ROPs
32
16
-50.0%
Clocks
Base Clock
1006 MHz
—
Boost Clock
1058 MHz
—
GPU Clock
—
902 MHz
Memory Clock
1502 MHz
6 Gbps effective
1001 MHz
2 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
GDDR5
DDR3
Memory Bus
256 bit
128 bit
Bandwidth
192.3 GB/s
32.03 GB/s
Cache
L1 Cache
16 KB (per SMX)
64 KB (per SMM)
L2 Cache
512 KB
2 MB
Performance
Pixel Rate
33.86 GPixel/s
14.43 GPixel/s
Texture Rate
135.4 GTexel/s
36.08 GTexel/s
FP32 (TFLOPS)
3.250 TFLOPS
1,154.6 GFLOPS
FP64 (TFLOPS)
135.4 GFLOPS (1:24)
36.08 GFLOPS (1:32)
Power
TDP
195 W
45 W
TDP (W)
195
45
-76.9%
Suggested PSU
450 W
—
Power Connectors
2x 6-pin
None
Architecture
Architecture
Kepler
Maxwell
GPU Name
GK104
GM107
Generation
GeForce 600
GeForce 800M
Process Size
28 nm
28 nm
Transistors
3,540 million
1,870 million
Die Size
294 mm²
148 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
1.4
OpenCL
3.0
3.0
CUDA
3.0
5.0
Shader Model
6.5 (5.1)
6.7 (5.1)
Physical
Slot Width
Dual-slot
IGP
Length
256 mm
10.1 inches
—
Height
111 mm
4.4 inches
—
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Portable Device Dependent
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Launch Price
499 USD
—
Production
End-of-life
End-of-life
Predecessor
GeForce 500
GeForce 700M
Successor
GeForce 700
GeForce 900M