NVIDIA GeForce GTX 660 Rev. 2 vs AMD Radeon RX 7900 XT
GPU Specs Compare
Graphics Card
Release Date
Sep 2014
Nov 2022
Generation
GeForce 600
Navi III
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
980 MHz
1387 MHz
Boost Clock
1032 MHz
2394 MHz
Memory Clock
1502 MHz
2500 MHz
Memory
Memory Size
2GB
20GB
Memory Type
GDDR5
GDDR6
Memory Bus
192bit
320bit
Bandwidth
144.2GB/s
800.0GB/s
Render Config
Shading Units
960
5376
TMUs
80
336
ROPs
24
192
L1 Cache
16 KB (per SMX)
256 KB per Array
L2 Cache
384 KB
6 MB
Compute Units
-
84
RT Cores
-
84
L3 Cache
-
80 MB
Theoretical Performance
Pixel Rate
20.64 GPixel/s
459.6 GPixel/s
Texture Rate
82.56 GTexel/s
804.4 GTexel/s
FP32 (float)
1.981 TFLOPS
51.48 TFLOPS
FP64 (double)
82.56 GFLOPS
1.609 TFLOPS
FP16 (half)
-
103.0 TFLOPS
Graphics Processor
GPU Name
GK104
Navi 31
Architecture
Kepler
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
3.54 billion
57.7 billion
Die Size
294 mm²
529 mm²
GPU Variant
-
Navi 31 XT(215-145000156)
Board Design
TDP
140W
300W
Suggested PSU
300 W
700 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
Power Connectors
1x 6-pin
2x 8-pin
Graphics Features
DirectX
12 (11_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
2.2
Vulkan
1.1
1.3
CUDA
3.0
-
Shader Model
5.1
6.8
📊 Benchmark
3DMark Time Spy
-
26,829
3DMark Time Spy Extreme
-
13,130
3DMark Speed Way
-
5,364