AMD Radeon 660M vs ATI Radeon HD 5870 Eyefinity 6
GPU · Specs Compare
Graphics Card
Release Date
Jan 2022
Mar 2010
Generation
Rembrandt
Evergreen
Type
Integrated
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 2.0 x16
Clock Speeds
Base Clock
1500 MHz
—
Boost Clock
1900 MHz
—
Memory Clock
System Shared
1200 MHz
Memory
Memory Size
System Shared
2GB
Memory Type
System Shared
GDDR5
Memory Bus
System Shared
256bit
Bandwidth
System Dependent
153.6GB/s
Render Config
Compute Units
6
20
Shading Units
384
1600
TMUs
24
80
ROPs
16
32
RT Cores
6
—
L1 Cache
128 KB per Array
8 KB (per CU)
L2 Cache
2 MB
512 KB
Theoretical Performance
Pixel Rate
30.40 GPixel/s
27.20 GPixel/s
Texture Rate
45.60 GTexel/s
68.00 GTexel/s
FP16 (half)
2.918 TFLOPS
—
FP32 (float)
1459 GFLOPS
2.720 TFLOPS
FP64 (double)
91.20 GFLOPS
544.0 GFLOPS
Graphics Processor
GPU Name
Rembrandt
Cypress
Architecture
RDNA 2.0
TeraScale 2
Foundry
TSMC
TSMC
Process Size
6 nm
40 nm
Transistors
13.1 billion
2.154 billion
Die Size
210 mm²
334 mm²
GPU Variant
—
Cypress XT(215-0735033)
Board Design
TDP
15W
228W
Outputs
No outputs
6x mini-DisplayPort 1.1
Power Connectors
None
1x 6-pin + 1x 8-pin
Suggested PSU
—
550 W
Graphics Features
DirectX
12 Ultimate (12_2)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
2.0
1.2
Vulkan
1.2
N/A
Shader Model
6.5
5.0
Benchmark
3DMark Time Spy
1,537
—
3DMark Time Spy Extreme
701
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.