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
RADEON
Radeon R5 M255
CORE STATE
Topaz
VRAM
2 GB
CLOCK SPEED
940 MHz
TDP
—
BUS WIDTH
128 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
3dmark_3dmark_steel_nomad_dx12
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
680M
R5 M255
Core Specs
Shading Units
768
384
-50.0%
Shaders
768
384
-50.0%
TMUs
48
24
-50.0%
ROPs
32
8
-75.0%
Compute Units
12
6
-50.0%
Clocks
Base Clock
2000 MHz
925 MHz
Boost Clock
2200 MHz
940 MHz
Memory Clock
System Shared
1000 MHz
2 Gbps effective
Memory
Memory Size
System Shared
2 GB
VRAM (MB)
—
2,048
Memory Type
System Shared
DDR3
Memory Bus
System Shared
128 bit
Bandwidth
System Dependent
32.00 GB/s
Cache
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
256 KB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
70.40 GPixel/s
7.520 GPixel/s
Texture Rate
105.6 GTexel/s
22.56 GTexel/s
FP32 (TFLOPS)
3.379 TFLOPS
721.9 GFLOPS
FP64 (TFLOPS)
211.2 GFLOPS (1:16)
45.12 GFLOPS (1:16)
FP16 (TFLOPS)
6.758 TFLOPS (2:1)
721.9 GFLOPS (1:1)
AI/RT
RT Cores
12
—
Power
TDP
50 W
—
TDP (W)
50
—
Power Connectors
None
—
Architecture
Architecture
RDNA 2.0
GCN 3.0
GPU Name
Rembrandt+
Topaz
Generation
Navi II IGP
(Rembrandt Mobile)
Gem System
(R5 M200)
Process Size
6 nm
28 nm
Transistors
13,100 million
1,550 million
Die Size
208 mm²
125 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
12.4M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.4
1.2.170
OpenCL
2.0
2.1
Shader Model
6.8
6.5
Physical
Slot Width
IGP
—
Outputs
Portable Device Dependent
—
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x8
Other
Production
Active
End-of-life
Predecessor
Vega II IGP
Solar System
Successor
Navi III IGP
Polaris Mobile