NVIDIA GeForce GTX 680 vs AMD Radeon HD 6850 1440SP Edition
GPU Specs Compare
Graphics Card
Release Date
Mar 2012
Aug 2012
Generation
GeForce 600
Northern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
1006 MHz
-
Boost Clock
1058 MHz
-
Memory Clock
1502 MHz
1000 MHz
Memory
Memory Size
2GB
1024MB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
192.3GB/s
128.0GB/s
Render Config
Shading Units
1536
1440
TMUs
128
72
ROPs
32
32
L1 Cache
16 KB (per SMX)
8 KB (per CU)
L2 Cache
512 KB
512 KB
Compute Units
-
18
Theoretical Performance
Pixel Rate
33.86 GPixel/s
23.20 GPixel/s
Texture Rate
135.4 GTexel/s
52.20 GTexel/s
FP32 (float)
3.250 TFLOPS
2.088 TFLOPS
FP64 (double)
135.4 GFLOPS
417.6 GFLOPS
Graphics Processor
GPU Name
GK104
Cypress
GPU Variant
GK104-400-A2
Cypress PRO(215-0735043)
Architecture
Kepler
TeraScale 2
Foundry
TSMC
TSMC
Process Size
28 nm
40 nm
Transistors
3.54 billion
2.154 billion
Die Size
294 mm²
334 mm²
Board Design
TDP
195W
151W
Suggested PSU
450 W
450 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Power Connectors
2x 6-pin
2x 6-pin
Graphics Features
DirectX
12 (11_0)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
3.0
1.2
Vulkan
1.2.175
N/A
CUDA
3.0
-
Shader Model
6.5 (5.1)
5.0