NVIDIA GeForce GTX 660 vs Intel Arc B770
GPU · Specs Compare
Graphics Card
Release Date
Sep 2012
Jan 2026
Generation
GeForce 600
Battlemage
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
980 MHz
2100 MHz
Boost Clock
1032 MHz
2400 MHz
Memory Clock
1502 MHz
2000 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
192bit
256bit
Bandwidth
144.2GB/s
512.0GB/s
Render Config
Shading Units
960
4096
TMUs
80
256
ROPs
24
128
L1 Cache
16 KB (per SMX)
—
L2 Cache
384 KB
16 MB
RT Cores
—
32
Theoretical Performance
Pixel Rate
20.64 GPixel/s
307.2 GPixel/s
Texture Rate
82.56 GTexel/s
614.4 GTexel/s
FP32 (float)
1.981 TFLOPS
19.66 TFLOPS
FP64 (double)
82.56 GFLOPS
2.458 TFLOPS
FP16 (half)
—
39.32 TFLOPS
Graphics Processor
GPU Name
GK106
BMG-G31
GPU Variant
GK106-400-A1
—
Architecture
Kepler
Xe2-HPG
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
2.54 billion
Unknown
Die Size
221 mm²
Unknown
Board Design
TDP
140W
225W
Suggested PSU
300 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.1a3x DisplayPort 2.1
Power Connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (11_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.4
CUDA
3.0
—
Shader Model
5.1
6.6
Benchmark
3DMark Time Spy
1,194
—
3DMark Time Spy Extreme
260
—
OctaneBench
27
—
Blender
111
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.