GPU Comparison
RADEON
AMD Radeon 680M
CORE STATE
Rembrandt+
VRAM
System Shared
CLOCK SPEED
2200 MHz
TDP
50 W
BUS WIDTH
System Shared
ARCHITECTURE
RDNA 2.0
PROCESS
6 nm
LAUNCH DATE
2023
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
3dmark_3dmark_steel_nomad_dx12
geekbench_opencl
geekbench_vulkan
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
680M
GTX 660
Core Specs
Shading Units
768
960
+25.0%
Shaders
768
960
+25.0%
TMUs
48
80
+66.7%
ROPs
32
24
-25.0%
Compute Units
12
—
Clocks
Base Clock
2000 MHz
980 MHz
Boost Clock
2200 MHz
1032 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
128 KB per Array
16 KB (per SMX)
L2 Cache
2 MB
384 KB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
70.40 GPixel/s
20.64 GPixel/s
Texture Rate
105.6 GTexel/s
82.56 GTexel/s
FP32 (TFLOPS)
3.379 TFLOPS
1.981 TFLOPS
FP64 (TFLOPS)
211.2 GFLOPS (1:16)
82.56 GFLOPS (1:24)
FP16 (TFLOPS)
6.758 TFLOPS (2:1)
—
AI/RT
RT Cores
12
—
Power
TDP
50 W
140 W
TDP (W)
50
140
+180.0%
Suggested PSU
—
300 W
Power Connectors
None
1x 6-pin
Architecture
Architecture
RDNA 2.0
Kepler
GPU Name
Rembrandt+
GK106
Generation
Navi II IGP
(Rembrandt Mobile)
GeForce 600
Process Size
6 nm
28 nm
Transistors
13,100 million
2,540 million
Die Size
208 mm²
221 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
11.5M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.4
1.2.175
OpenCL
2.0
3.0
CUDA
—
3.0
Shader Model
6.8
6.5 (5.1)
Physical
Slot Width
IGP
Dual-slot
Length
—
241 mm
9.5 inches
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Other
Launch Price
—
229 USD
Production
Active
End-of-life
Predecessor
Vega II IGP
GeForce 500
Successor
Navi III IGP
GeForce 700