AMD Radeon HD 6930 vs NVIDIA GeForce GTX 680 Mac Edition
GPU · Specs Compare
Graphics Card
Release Date
Dec 2011
Apr 2013
Generation
Northern Islands
GeForce 600
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
Clock Speeds
Memory Clock
1200 MHz
1502 MHz
Base Clock
—
1006 MHz
Boost Clock
—
1058 MHz
Memory
Memory Size
1024MB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
153.6GB/s
192.3GB/s
Render Config
Compute Units
20
—
Shading Units
1280
1536
TMUs
80
128
ROPs
32
32
L1 Cache
8 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
24.00 GPixel/s
33.86 GPixel/s
Texture Rate
60.00 GTexel/s
135.4 GTexel/s
FP32 (float)
1.920 TFLOPS
3.250 TFLOPS
FP64 (double)
480.0 GFLOPS
135.4 GFLOPS
Graphics Processor
GPU Name
Cayman
GK104
GPU Variant
Cayman CE(215-0807105)
GK104-400-A2
Architecture
TeraScale 3
Kepler
Foundry
TSMC
TSMC
Process Size
40 nm
28 nm
Transistors
2.64 billion
3.54 billion
Die Size
389 mm²
294 mm²
Board Design
TDP
186W
195W
Suggested PSU
450 W
450 W
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 6-pin
2x 6-pin
Graphics Features
DirectX
11.2 (11_0)
12 (11_0)
OpenGL
4.4
4.6
OpenCL
1.2
3.0
Vulkan
N/A
1.1
Shader Model
5.0
5.1
CUDA
—
3.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.