GPU Comparison
RADEON
AMD Radeon HD 6850 X2
CORE STATE
Barts
VRAM
2 GB
CLOCK SPEED
—
TDP
254 W
BUS WIDTH
256 bit
ARCHITECTURE
TeraScale 2
PROCESS
40 nm
LAUNCH DATE
2011
VS
GEFORCE
GeForce GTX 1660 Ti Mobile
CORE STATE
TU116
VRAM
6 GB
CLOCK SPEED
1590 MHz
TDP
—
BUS WIDTH
192 bit
ARCHITECTURE
Turing
PROCESS
12 nm
LAUNCH DATE
2019
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
GTX 1660 Ti Mobile
Core Specs
Shading Units
960
1,536
+60.0%
Shaders
960
1,536
+60.0%
TMUs
48
96
+100.0%
ROPs
32
48
+50.0%
Compute Units
12
—
SM Count
—
24
Clocks
Base Clock
—
1455 MHz
Boost Clock
—
1590 MHz
GPU Clock
800 MHz
—
Memory Clock
1050 MHz
4.2 Gbps effective
1500 MHz
12 Gbps effective
Memory
Memory Size
2 GB
6 GB
VRAM (MB)
2,048
6,144
+200.0%
Memory Type
GDDR5
GDDR6
Memory Bus
256 bit
192 bit
Bandwidth
134.4 GB/s
288.0 GB/s
Cache
L1 Cache
8 KB (per CU)
64 KB (per SM)
L2 Cache
512 KB
1536 KB
Performance
Pixel Rate
25.60 GPixel/s
76.32 GPixel/s
Texture Rate
38.40 GTexel/s
152.6 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
4.884 TFLOPS
FP64 (TFLOPS)
—
152.6 GFLOPS (1:32)
FP16 (TFLOPS)
—
9.769 TFLOPS (2:1)
Power
TDP
254 W
—
TDP (W)
254
—
Suggested PSU
600 W
—
Power Connectors
2x 8-pin
None
Architecture
Architecture
TeraScale 2
Turing
GPU Name
Barts
TU116
Generation
Northern Islands
(HD 6800)
GeForce 16 Mobile
Process Size
40 nm
12 nm
Transistors
1,700 million
6,600 million
Die Size
255 mm²
284 mm²
Foundry
TSMC
TSMC
Density
6.7M / mm²
23.2M / mm²
API Support
DirectX
11.2 (11_0)
12 (12_1)
OpenGL
4.4
4.6
Vulkan
—
1.4
OpenCL
1.2
3.0
CUDA
—
7.5
Shader Model
5.0
6.8
Physical
Slot Width
Dual-slot
MXM Module
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Portable Device Dependent
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Evergreen
GeForce 10 Mobile
Successor
Southern Islands
GeForce 20 Mobile