NVIDIA GeForce GTX 660 Ti vs AMD Radeon Pro W6900X
GPU Specs Compare
Graphics Card
Release Date
Aug 2012
Aug 2021
Generation
GeForce 600
Radeon Pro Mac
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
915 MHz
1825 MHz
Boost Clock
980 MHz
2150 MHz
Memory Clock
1502 MHz
2000 MHz
Memory
Memory Size
2GB
32GB
Memory Type
GDDR5
GDDR6
Memory Bus
192bit
256bit
Bandwidth
144.2GB/s
512.0GB/s
Render Config
Shading Units
1344
5120
TMUs
112
320
ROPs
24
128
L1 Cache
16 KB (per SMX)
128 KB per Array
L2 Cache
384 KB
4 MB
Compute Units
-
80
RT Cores
-
80
L3 Cache
-
128 MB
Theoretical Performance
Pixel Rate
27.44 GPixel/s
275.2 GPixel/s
Texture Rate
109.8 GTexel/s
688.0 GTexel/s
FP32 (float)
2.634 TFLOPS
22.02 TFLOPS
FP64 (double)
109.8 GFLOPS
1376 GFLOPS
FP16 (half)
-
44.03 TFLOPS
Graphics Processor
GPU Name
GK104
Navi 21
GPU Variant
GK104-300-KD-A2
Navi 21 Pro-XTA
Architecture
Kepler
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
3.54 billion
26.8 billion
Die Size
294 mm²
520 mm²
Board Design
TDP
150W
300W
Suggested PSU
450 W
700 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.14x Thunderbolt
Power Connectors
2x 6-pin
None
Graphics Features
DirectX
12 (11_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
2.1
Vulkan
1.1
1.3
CUDA
3.0
-
Shader Model
5.1
6.5