GPU Comparison
RADEON
AMD Radeon R9 390 X2
CORE STATE
Grenada
VRAM
8 GB
CLOCK SPEED
—
TDP
580 W
BUS WIDTH
512 bit
ARCHITECTURE
GCN 2.0
PROCESS
28 nm
LAUNCH DATE
2015
VS
GEFORCE
GeForce GTX 1660
CORE STATE
TU116
VRAM
6 GB
CLOCK SPEED
1785 MHz
TDP
120 W
BUS WIDTH
192 bit
ARCHITECTURE
Turing
PROCESS
12 nm
LAUNCH DATE
2019
PERFORMANCE BENCHMARKS
3dmark_3dmark_steel_nomad_dx12
geekbench_opencl
geekbench_vulkan
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
R9 390 X2
GTX 1660
Core Specs
Shading Units
2,560
1,408
-45.0%
Shaders
2,560
1,408
-45.0%
TMUs
160
88
-45.0%
ROPs
64
48
-25.0%
Compute Units
40
—
SM Count
—
22
Clocks
Base Clock
—
1530 MHz
Boost Clock
—
1785 MHz
GPU Clock
1000 MHz
—
Memory Clock
1350 MHz
5.4 Gbps effective
2001 MHz
8 Gbps effective
Memory
Memory Size
8 GB
6 GB
VRAM (MB)
8,192
6,144
-25.0%
Memory Type
GDDR5
GDDR5
Memory Bus
512 bit
192 bit
Bandwidth
345.6 GB/s
192.1 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
1024 KB
1536 KB
Performance
Pixel Rate
64.00 GPixel/s
85.68 GPixel/s
Texture Rate
160.0 GTexel/s
157.1 GTexel/s
FP32 (TFLOPS)
5.120 TFLOPS
5.027 TFLOPS
FP64 (TFLOPS)
640.0 GFLOPS (1:8)
157.1 GFLOPS (1:32)
FP16 (TFLOPS)
—
10.05 TFLOPS (2:1)
Power
TDP
580 W
120 W
TDP (W)
580
120
-79.3%
Suggested PSU
950 W
300 W
Power Connectors
4x 8-pin
1x 8-pin
Architecture
Architecture
GCN 2.0
Turing
GPU Name
Grenada
TU116
Generation
Pirate Islands
(R9 300)
GeForce 16
Process Size
28 nm
12 nm
Transistors
6,200 million
6,600 million
Die Size
438 mm²
284 mm²
Foundry
TSMC
TSMC
Density
14.2M / mm²
23.2M / mm²
API Support
DirectX
12 (12_0)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.4
OpenCL
2.1
3.0
CUDA
—
7.5
Shader Model
6.5
6.8
Physical
Slot Width
Triple-slot
Dual-slot
Length
—
229 mm
9 inches
Height
—
111 mm
4.4 inches
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x DVI1x HDMI 2.01x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Launch Price
1,399 USD
219 USD
Production
End-of-life
End-of-life
Predecessor
Volcanic Islands
GeForce 10
Successor
Arctic Islands
GeForce 20