AMD Radeon R9 390 vs NVIDIA GeForce GTX 680 Mac Edition
GPU · Specs Compare
Graphics Card
Release Date
Jun 2015
Apr 2013
Generation
Pirate Islands
GeForce 600
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Memory Clock
1500 MHz
1502 MHz
Base Clock
—
1006 MHz
Boost Clock
—
1058 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
512bit
256bit
Bandwidth
384.0GB/s
192.3GB/s
Render Config
Compute Units
40
—
Shading Units
2560
1536
TMUs
160
128
ROPs
64
32
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
1024 KB
512 KB
Theoretical Performance
Pixel Rate
64.00 GPixel/s
33.86 GPixel/s
Texture Rate
160.0 GTexel/s
135.4 GTexel/s
FP32 (float)
5.120 TFLOPS
3.250 TFLOPS
FP64 (double)
640.0 GFLOPS
135.4 GFLOPS
Graphics Processor
GPU Name
Grenada
GK104
GPU Variant
Grenada PRO(215-0880030)
GK104-400-A2
Architecture
GCN 2.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
6.2 billion
3.54 billion
Die Size
438 mm²
294 mm²
Board Design
TDP
275W
195W
Suggested PSU
600 W
450 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 6-pin + 1x 8-pin
2x 6-pin
Graphics Features
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
2.0
3.0
Vulkan
1.2
1.1
Shader Model
6.3
5.1
CUDA
—
3.0
Benchmark
3DMark Time Spy
3,964
—
3DMark Time Spy Extreme
1,931
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.