GPU Comparison
RADEON
AMD Radeon Pro Duo
CORE STATE
Capsaicin
VRAM
4 GB
CLOCK SPEED
—
TDP
350 W
BUS WIDTH
4096 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2016
VS
GEFORCE
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
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro Duo
GTX 660
Core Specs
Shading Units
4,096
960
-76.6%
Shaders
4,096
960
-76.6%
TMUs
256
80
-68.8%
ROPs
64
24
-62.5%
Compute Units
64
—
Clocks
Base Clock
—
980 MHz
Boost Clock
—
1032 MHz
GPU Clock
1000 MHz
—
Memory Clock
500 MHz
1000 Mbps effective
1502 MHz
6 Gbps effective
Memory
Memory Size
4 GB
2 GB
VRAM (MB)
4,096
2,048
-50.0%
Memory Type
HBM
GDDR5
Memory Bus
4096 bit
192 bit
Bandwidth
512.0 GB/s
144.2 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
2 MB
384 KB
Performance
Pixel Rate
64.00 GPixel/s
20.64 GPixel/s
Texture Rate
256.0 GTexel/s
82.56 GTexel/s
FP32 (TFLOPS)
8.192 TFLOPS
1.981 TFLOPS
FP64 (TFLOPS)
512.0 GFLOPS (1:16)
82.56 GFLOPS (1:24)
FP16 (TFLOPS)
8.192 TFLOPS (1:1)
—
Power
TDP
350 W
140 W
TDP (W)
350
140
-60.0%
Suggested PSU
750 W
300 W
Power Connectors
3x 8-pin
1x 6-pin
Architecture
Architecture
GCN 3.0
Kepler
GPU Name
Capsaicin
GK106
Generation
Radeon Pro GCN
GeForce 600
Process Size
28 nm
28 nm
Transistors
8,900 million
2,540 million
Die Size
596 mm²
221 mm²
Foundry
TSMC
TSMC
Density
14.9M / mm²
11.5M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.175
OpenCL
2.1
3.0
CUDA
—
3.0
Shader Model
6.5
6.5 (5.1)
Physical
Slot Width
Dual-slot
Dual-slot
Length
277 mm
10.9 inches
241 mm
9.5 inches
Height
111 mm
4.4 inches
—
Outputs
1x HDMI 1.4a3x DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Launch Price
1,499 USD
229 USD
Production
End-of-life
End-of-life
Predecessor
FirePro GCN
GeForce 500
Successor
Radeon Pro Polaris
GeForce 700