Radeon RX Vega 56 vs GeForce GTX 660
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX Vega 56 and 2GB VRAM GeForce GTX 660 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX Vega 56 's Advantages
Released 4 years and 11 months late
Boost Clock has increased by 43% (1471MHz vs 1032MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (409.6GB/s vs 144.2GB/s)
2624 additional rendering cores
GeForce GTX 660 's Advantages
Lower TDP (140W vs 210W)
Score
Benchmark
FP32 (float)
Radeon RX Vega 56
+432%
10540
GeForce GTX 660
1981
3DMark Time Spy
Radeon RX Vega 56
+468%
6783
GeForce GTX 660
1194
3DMark Time Spy Extreme
Radeon RX Vega 56
+1173%
3310
GeForce GTX 660
260
Graphics Card
Aug 2017
Release Date
Sep 2012
Vega
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1156 MHz
Base Clock
980 MHz
1471 MHz
Boost Clock
1032 MHz
800 MHz
Memory Clock
1502 MHz
Memory
8GB
Memory Size
2GB
HBM2
Memory Type
GDDR5
2048bit
Memory Bus
192bit
409.6GB/s
Bandwidth
144.2GB/s
Render Config
56
Compute Units
-
3584
Shading Units
960
224
TMUs
80
64
ROPs
24
16 KB (per CU)
L1 Cache
16 KB (per SMX)
4 MB
L2 Cache
384 KB
Theoretical Performance
94.14 GPixel/s
Pixel Rate
20.64 GPixel/s
329.5 GTexel/s
Texture Rate
82.56 GTexel/s
21.09 TFLOPS
FP16 (half)
-
10.54 TFLOPS
FP32 (float)
1.981 TFLOPS
659.0 GFLOPS
FP64 (double)
82.56 GFLOPS
Board Design
210W
TDP
140W
550 W
Suggested PSU
300 W
1x HDMI 2.0b
3x DisplayPort 1.4a
Outputs
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
2x 8-pin
Power Connectors
1x 6-pin
Graphics Processor
Vega 10
GPU Name
GK106
Vega 10 XL
(215-0894216)
GPU Variant
GK106-400-A1
GCN 5.0
Architecture
Kepler
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
28 nm
12.5 billion
Transistors
2.54 billion
495 mm²
Die Size
221 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.2
Vulkan
1.1
-
CUDA
3.0
6.4
Shader Model
5.1