Radeon R9 380 vs GeForce GTX 660 OEM
We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 380 and 1536MB VRAM GeForce GTX 660 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon R9 380 Advantages
Released 2 years and 10 months late
More VRAM (2GB vs 1536GB)
Larger VRAM bandwidth (176.0GB/s vs 134.4GB/s)
640 additional rendering cores
GeForce GTX 660 OEM Advantages
Boost Clock888MHz
Lower TDP (130W vs 190W)
Score
Benchmark
FP32 (float)
Radeon R9 380
+69%
3476
GeForce GTX 660 OEM
2046
3DMark Time Spy
Radeon R9 380
+130%
2757
GeForce GTX 660 OEM
1194
3DMark Time Spy Extreme
Radeon R9 380
+376%
1239
GeForce GTX 660 OEM
260
Graphics Card
Jun 2015
Release Date
Aug 2012
Pirate Islands
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
823 MHz
-
Boost Clock
888 MHz
1375 MHz
Memory Clock
1400 MHz
Memory
2GB
Memory Size
1536MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
192bit
176.0GB/s
Bandwidth
134.4GB/s
Render Config
28
Compute Units
-
1792
Shading Units
1152
112
TMUs
96
32
ROPs
24
16 KB (per CU)
L1 Cache
16 KB (per SMX)
512 KB
L2 Cache
384 KB
Theoretical Performance
31.04 GPixel/s
Pixel Rate
21.31 GPixel/s
108.6 GTexel/s
Texture Rate
85.25 GTexel/s
3.476 TFLOPS
FP16 (half)
-
3.476 TFLOPS
FP32 (float)
2.046 TFLOPS
217.3 GFLOPS
FP64 (double)
85.25 GFLOPS
Board Design
190W
TDP
130W
450 W
Suggested PSU
300 W
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x HDMI 1.4a
1x DisplayPort 1.2
Outputs
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x HDMI 1.4a
1x DisplayPort 1.2
2x 6-pin
Power Connectors
1x 6-pin
Graphics Processor
Antigua
GPU Name
GK104
Antigua PRO
(215-0877000)
(215-0877000)
GPU Variant
GK104-200-KD-A2
GCN 3.0
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
3.54 billion
366 mm²
Die Size
294 mm²
Graphics Features
12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.0
OpenCL
3.0
1.2
Vulkan
1.1
-
CUDA
3.0
6.3
Shader Model
5.1
