GPU Comparison
RADEON
AMD Radeon R7 Graphics
CORE STATE
Spectre Lite
VRAM
System Shared
CLOCK SPEED
—
TDP
25 W
BUS WIDTH
System Shared
ARCHITECTURE
GCN 2.0
PROCESS
28 nm
LAUNCH DATE
2014
VS
GEFORCE
GeForce GTX 660
CORE STATE
GK106
VRAM
2 GB
CLOCK SPEED
1032 MHz
TDP
140 W
BUS WIDTH
192 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
R7 Graphics
GTX 660
Core Specs
Shading Units
384
960
+150.0%
Shaders
384
960
+150.0%
TMUs
24
80
+233.3%
ROPs
8
24
+200.0%
Compute Units
6
—
Clocks
Base Clock
—
980 MHz
Boost Clock
—
1032 MHz
GPU Clock
720 MHz
—
Memory Clock
System Shared
1502 MHz
6 Gbps effective
Memory
Memory Size
System Shared
2 GB
VRAM (MB)
—
2,048
Memory Type
System Shared
GDDR5
Memory Bus
System Shared
192 bit
Bandwidth
System Dependent
144.2 GB/s
Cache
L1 Cache
—
16 KB (per SMX)
L2 Cache
—
384 KB
Performance
Pixel Rate
5.760 GPixel/s
20.64 GPixel/s
Texture Rate
17.28 GTexel/s
82.56 GTexel/s
FP32 (TFLOPS)
553.0 GFLOPS
1.981 TFLOPS
FP64 (TFLOPS)
34.56 GFLOPS (1:16)
82.56 GFLOPS (1:24)
Power
TDP
25 W
140 W
TDP (W)
25
140
+460.0%
Suggested PSU
—
300 W
Power Connectors
—
1x 6-pin
Architecture
Architecture
GCN 2.0
Kepler
GPU Name
Spectre Lite
GK106
Generation
GCN 2.0 IGP
(Kaveri)
GeForce 600
Process Size
28 nm
28 nm
Transistors
2,410 million
2,540 million
Die Size
245 mm²
221 mm²
Foundry
GlobalFoundries
TSMC
Density
9.8M / mm²
11.5M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.175
OpenCL
2.1
3.0
CUDA
—
3.0
Shader Model
6.5
6.5 (5.1)
Physical
Slot Width
IGP
Dual-slot
Length
—
241 mm
9.5 inches
Outputs
Motherboard Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
IGP
PCIe 3.0 x16
Other
Launch Price
—
229 USD
Production
End-of-life
End-of-life
Predecessor
TeraScale 3 IGP
GeForce 500
Successor
GCN 3.0 IGP
GeForce 700