GeForce GTX 770M and Radeon HD 6990M - video card comparison
GeForce GTX 770M
Radeon HD 6990M
Architecture
Kepler (2012−2018)
Terascale 2 (2009−2015)
GPU code name
N14E-GS
Blackcomb XTX
Market segment
Laptop
Laptop
Release date
May 2013
July 2011
Bus support
PCI Express 3.0, PCI Express 2.0
-
Interface
MXM-B (3.0)
MXM-B (3.0)
Supplementary power connectors
None
None
SLI options
+
-
Boost clock speed
797 MHz
-
Core clock speed
811 MHz
715 MHz
CUDA cores
960
-
Floating-point performance
1,530 gflops
1,601.6 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,540 million
1,700 million
Pipelines / CUDA cores
960
1120
Power consumption (TDP)
75 Watt
100 Watt
Texture fill rate
63.76
40.04
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
2 GB
Memory bus width
192 Bit
256 Bit
Memory clock speed
2000 MHz
900 MHz
Memory bandwidth
96.0 GB/s
115.2 GB/s
Shared memory
-
-
Standard memory configuration
GDDR5
-
Display Connectors
No outputs
No outputs
eDP 1.2 signal support
Up to 3840x2160
-
LVDS signal support
Up to 1920x1200
-
VGA аnalog display support
Up to 2048x1536
-
DisplayPort Multimode (DP++) support
Up to 3840x2160
-
HDCP content protection
+
-
HDMI
+
-
7.1 channel HD audio on HDMI
+
-
DirectX
12 API
11.2 (11_0)
CUDA
+
-
OpenCL
1.1
1.2
OpenGL
4.5
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
N/A
3D Vision / 3DTV Play
+
-
Blu-Ray 3D Support
+
-
H.264, VC1, MPEG2 1080p video decoder
+
-
Optimus
+
-
TrueHD and DTS-HD audio bitstreaming
+
-