AMD Radeon HD 6850 1440SP Edition vs NVIDIA GeForce GTX 680 Mac Edition
GPU Specs Compare
Graphics Card
Release Date
Aug 2012
Apr 2013
Generation
Northern Islands
GeForce 600
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
Clock Speeds
Memory Clock
1000 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
128.0GB/s
192.3GB/s
Render Config
Compute Units
18
-
Shading Units
1440
1536
TMUs
72
128
ROPs
32
32
L1 Cache
8 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
23.20 GPixel/s
33.86 GPixel/s
Texture Rate
52.20 GTexel/s
135.4 GTexel/s
FP32 (float)
2.088 TFLOPS
3.250 TFLOPS
FP64 (double)
417.6 GFLOPS
135.4 GFLOPS
Graphics Processor
GPU Name
Cypress
GK104
GPU Variant
Cypress PRO(215-0735043)
GK104-400-A2
Architecture
TeraScale 2
Kepler
Foundry
TSMC
TSMC
Process Size
40 nm
28 nm
Transistors
2.154 billion
3.54 billion
Die Size
334 mm²
294 mm²
Board Design
TDP
151W
195W
Suggested PSU
450 W
450 W
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
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