GPU Comparison
GEFORCE
NVIDIA GeForce GTX 660
CORE STATE
GK106
VRAM
2 GB
CLOCK SPEED
1032 MHz
TDP
140 W
BUS WIDTH
192 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
VS
GEFORCE
Quadro 4000
CORE STATE
GF100
VRAM
2 GB
CLOCK SPEED
—
TDP
142 W
BUS WIDTH
256 bit
ARCHITECTURE
Fermi
PROCESS
40 nm
LAUNCH DATE
2010
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
GTX 660
Quadro 4000
Core Specs
Shading Units
960
256
-73.3%
Shaders
960
256
-73.3%
TMUs
80
32
-60.0%
ROPs
24
32
+33.3%
SM Count
—
8
Clocks
Base Clock
980 MHz
—
Boost Clock
1032 MHz
—
GPU Clock
—
475 MHz
Shader Clock
—
950 MHz
Memory Clock
1502 MHz
6 Gbps effective
702 MHz
2.8 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
GDDR5
GDDR5
Memory Bus
192 bit
256 bit
Bandwidth
144.2 GB/s
89.86 GB/s
Cache
L1 Cache
16 KB (per SMX)
64 KB (per SM)
L2 Cache
384 KB
512 KB
Performance
Pixel Rate
20.64 GPixel/s
7.600 GPixel/s
Texture Rate
82.56 GTexel/s
15.20 GTexel/s
FP32 (TFLOPS)
1.981 TFLOPS
486.4 GFLOPS
FP64 (TFLOPS)
82.56 GFLOPS (1:24)
243.2 GFLOPS (1:2)
Power
TDP
140 W
142 W
TDP (W)
140
142
+1.4%
Suggested PSU
300 W
300 W
Power Connectors
1x 6-pin
1x 6-pin
Architecture
Architecture
Kepler
Fermi
GPU Name
GK106
GF100
Generation
GeForce 600
Quadro Fermi
(x000)
Process Size
28 nm
40 nm
Transistors
2,540 million
3,100 million
Die Size
221 mm²
529 mm²
Foundry
TSMC
TSMC
Density
11.5M / mm²
5.9M / mm²
API Support
DirectX
12 (11_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.175
—
OpenCL
3.0
1.1
CUDA
3.0
2.0
Shader Model
6.5 (5.1)
5.1
Physical
Slot Width
Dual-slot
Single-slot
Length
241 mm
9.5 inches
241 mm
9.5 inches
Height
—
111 mm
4.4 inches
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x DVI2x DisplayPort
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Other
Launch Price
229 USD
1,199 USD
Production
End-of-life
End-of-life
Predecessor
GeForce 500
Quadro FX Tesla
Successor
GeForce 700
Quadro Kepler