AMD Radeon HD 6870 vs NVIDIA GeForce GTX 1660 Ti Mobile
GPU · Specs Compare
Graphics Card
Release Date
Oct 2010
Apr 2019
Generation
Northern Islands
GeForce 16 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1050 MHz
1500 MHz
Base Clock
—
1455 MHz
Boost Clock
—
1590 MHz
Memory
Memory Size
1024MB
6GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
192bit
Bandwidth
134.4GB/s
288.0GB/s
Render Config
Compute Units
14
—
Shading Units
1120
1536
TMUs
56
96
ROPs
32
48
L1 Cache
8 KB (per CU)
64 KB (per SM)
L2 Cache
512 KB
1536 KB
SM Count
—
24
Theoretical Performance
Pixel Rate
28.80 GPixel/s
76.32 GPixel/s
Texture Rate
50.40 GTexel/s
152.6 GTexel/s
FP32 (float)
2.016 TFLOPS
4.884 TFLOPS
FP16 (half)
—
9.769 TFLOPS
FP64 (double)
—
152.6 GFLOPS
Graphics Processor
GPU Name
Barts
TU116
GPU Variant
Barts XT(215-0798000)
—
Architecture
TeraScale 2
Turing
Foundry
TSMC
TSMC
Process Size
40 nm
12 nm
Transistors
1.7 billion
6.6 billion
Die Size
255 mm²
284 mm²
Board Design
TDP
151W
Unknown
Suggested PSU
450 W
—
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Portable Device Dependent
Power Connectors
2x 6-pin
None
Graphics Features
DirectX
11.2 (11_0)
12 (12_1)
OpenGL
4.4
4.6
OpenCL
1.2
3.0
Vulkan
N/A
1.3
Shader Model
5.0
6.7
CUDA
—
7.5
Benchmark
3DMark Time Spy
—
5,597
3DMark Time Spy Extreme
—
2,574
▲ Specs Compare
Data sourced from official specifications and benchmark tests.