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 R6 M255DX
CORE STATE
Jet
VRAM
System Shared
CLOCK SPEED
855 MHz
TDP
—
BUS WIDTH
System Shared
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
3dmark_3dmark_steel_nomad_dx12
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
680M
R6 M255DX
Core Specs
Shading Units
768
320
-58.3%
Shaders
768
320
-58.3%
TMUs
48
20
-58.3%
ROPs
32
8
-75.0%
Compute Units
12
5
-58.3%
Clocks
Base Clock
2000 MHz
780 MHz
Boost Clock
2200 MHz
855 MHz
Memory Clock
System Shared
System Shared
Memory
Memory Size
System Shared
System Shared
Memory Type
System Shared
System Shared
Memory Bus
System Shared
System Shared
Bandwidth
System Dependent
System Dependent
Cache
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
128 KB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
70.40 GPixel/s
6.840 GPixel/s
Texture Rate
105.6 GTexel/s
17.10 GTexel/s
FP32 (TFLOPS)
3.379 TFLOPS
547.2 GFLOPS
FP64 (TFLOPS)
211.2 GFLOPS (1:16)
34.20 GFLOPS (1:16)
FP16 (TFLOPS)
6.758 TFLOPS (2:1)
—
AI/RT
RT Cores
12
—
Power
TDP
50 W
—
TDP (W)
50
—
Power Connectors
None
—
Architecture
Architecture
RDNA 2.0
GCN 1.0
GPU Name
Rembrandt+
Jet
Generation
Navi II IGP
(Rembrandt Mobile)
Gem System Hybrid
(Rx M200)
Process Size
6 nm
28 nm
Transistors
13,100 million
690 million
Die Size
208 mm²
56 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
12.3M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.4
1.2.170
OpenCL
2.0
2.1 (1.2)
Shader Model
6.8
6.5 (5.1)
Physical
Slot Width
IGP
IGP
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 4.0 x8
IGP
Other
Production
Active
End-of-life
Predecessor
Vega II IGP
—
Successor
Navi III IGP
—