Radeon R7 Graphics and GeForce 8800 GTS 640 - video card comparison
Radeon R7 Graphics
GeForce 8800 GTS 640
Architecture
GCN 2.0 (2013−2017)
Tesla (2006−2010)
GPU code name
Spectre
G80
Market segment
Desktop
Desktop
Release date
January 2014
November 2006
Interface
IGP
PCIe 1.0 x16
Supplementary power connectors
-
1x 6-pin
Boost clock speed
980 MHz
-
Core clock speed
686 MHz
513 MHz
Floating-point performance
526.8 gflops
228.1 gflops
Manufacturing process technology
28 nm
90 nm
Number of transistors
2,410 million
681 million
Pipelines / CUDA cores
512
96
Power consumption (TDP)
15 Watt
143 Watt
Texture fill rate
31.36
24.62
Memory type
System Shared
GDDR3
Maximum RAM amount
System Shared
640 MB
Memory bus width
System Shared
320 Bit
Memory clock speed
System Shared
1584 MHz
Memory bandwidth
-
63.36 GB/s
Display Connectors
No outputs
2x DVI, 1x S-Video
DirectX
12 (12_0)
11.1 (10_0)
CUDA
-
+
OpenCL
2.0
1.1
OpenGL
4.6
3.3
Shader Model
6.0
4.0
Vulkan
1.2.131
N/A