Radeon HD 7870M and GeForce GTX 675M - video card comparison
Passmark - benchmark score Radeon HD 7870M vs GeForce GTX 675M
Radeon HD 7870M
1552
GeForce GTX 675M
1987
Radeon HD 7870M
GeForce GTX 675M
Architecture
GCN (2011−2017)
Fermi (2010−2014)
GPU code name
Heathrow XT
N13E-GS1
Market segment
Laptop
Laptop
Release date
April 2012
March 2012
Bus support
-
PCI Express 2.0
Interface
PCIe 3.0 x16
MXM-B (3.0)
SLI options
-
+
Core clock speed
800 MHz
620 MHz
CUDA cores
-
384
Floating-point performance
1,024 gflops
952.3 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,500 million
1,950 million
Pipelines / CUDA cores
640
384
Power consumption (TDP)
45 Watt
100 Watt
Texture fill rate
32.00
39.7 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
256bit
Memory clock speed
4000 MHz
1500 MHz
Memory bandwidth
64 GB/s
96.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DirectX
12 (11_1)
12 API
CUDA
-
+
OpenCL
1.2
1.1
OpenGL
4.6
4.5
Shader Model
5.1
5.1
Vulkan
1.2.131
N/A
Optimus
-
+