Home GPU Comparison AMD Radeon 660M vs AMD Radeon R9 280X2

AMD Radeon 660M vs AMD Radeon R9 280X2

We compared a Integrated graphics card GPU: 0System Shared VRAM Radeon 660M and a Desktop platform GPU: 3GB VRAM Radeon R9 280X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 660M 's Advantages
Boost Clock has increased by 90% (1900MHz vs 1000MHz)
Lower TDP (15W vs 375W)
AMD Radeon R9 280X2 's Advantages
1664 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon 660M
1.459 TFLOPS
Radeon R9 280X2 +180%
4.096 TFLOPS
VS

Graphics Card

Jan 2022
Release Date
Unknown
Rembrandt
Generation
Volcanic Islands
Integrated
Type
Desktop
PCIe 4.0 x8
Bus Interface
PCIe 3.0 x16

Clock Speeds

1500 MHz
Base Clock
950 MHz
1900 MHz
Boost Clock
1000 MHz
System Shared
Memory Clock
1500 MHz

Memory

System Shared
Memory Size
3GB
System Shared
Memory Type
GDDR5
System Shared
Memory Bus
384bit
System Dependent
Bandwidth
288.0GB/s

Render Config

-
SM Count
-
6
Compute Units
32
384
Shading Units
2048
24
TMUs
128
16
ROPs
32
-
Tensor Cores
-
6
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
768 KB

Theoretical Performance

30.40 GPixel/s
Pixel Rate
32.00 GPixel/s
45.60 GTexel/s
Texture Rate
128.0 GTexel/s
2.918 TFLOPS
FP16 (half)
-
1459 GFLOPS
FP32 (float)
4.096 TFLOPS
91.20 GFLOPS
FP64 (double)
1024 GFLOPS

Graphics Processor

Rembrandt
GPU Name
Tahiti
-
GPU Variant
Tahiti XTL (215-0821065)
RDNA 2.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
6 nm
Process Size
28 nm
13.1 billion
Transistors
4.313 billion
210 mm²
Die Size
352 mm²

Board Design

15W
TDP
375W
-
Suggested PSU
750 W
No outputs
Outputs
6x mini-DisplayPort 1.2
None
Power Connectors
3x 8-pin

Graphics Features

12 Ultimate (12_2)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.0
OpenCL
1.2
1.2
Vulkan
1.2
-
CUDA
-
6.5
Shader Model
5.1

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