NVIDIA GeForce GTX 660 vs AMD Radeon RX 7800 XT
GPU Specs Compare
Graphics Card
Release Date
Sep 2012
Aug 2023
Generation
GeForce 600
Navi III
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
980 MHz
1295 MHz
Boost Clock
1032 MHz
2430 MHz
Memory Clock
1502 MHz
2438 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
192bit
256bit
Bandwidth
144.2GB/s
624.1GB/s
Render Config
Shading Units
960
3840
TMUs
80
240
ROPs
24
96
L1 Cache
16 KB (per SMX)
128 KB per Array
L2 Cache
384 KB
4 MB
Compute Units
-
60
RT Cores
-
60
L3 Cache
-
64 MB
Theoretical Performance
Pixel Rate
20.64 GPixel/s
233.3 GPixel/s
Texture Rate
82.56 GTexel/s
583.2 GTexel/s
FP32 (float)
1.981 TFLOPS
37.32 TFLOPS
FP64 (double)
82.56 GFLOPS
1166.4 GFLOPS
FP16 (half)
-
74.65 TFLOPS
Graphics Processor
GPU Name
GK106
Navi 32
GPU Variant
GK106-400-A1
Navi 32 XT(215-180000006)
Architecture
Kepler
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
2.54 billion
28.1 billion
Die Size
221 mm²
346 mm²
Board Design
TDP
140W
263W
Suggested PSU
300 W
600 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.1a3x DisplayPort 2.1
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
1,194
20,086
3DMark Time Spy Extreme
260
9,448
OctaneBench
27
-
Blender
111
-
3DMark Speed Way
-
3,978
Shadow of the Tomb Raider 2160p
-
82
Cyberpunk 2077 2160p
-
38
Shadow of the Tomb Raider 1440p
-
158
Cyberpunk 2077 1440p
-
82
Shadow of the Tomb Raider 1080p
-
234
Cyberpunk 2077 1080p
-
126
GTA 5 2160p
-
140
GTA 5 1440p
-
140
GTA 5 1080p
-
190
Horizon Forbidden West 1080p
-
98
Horizon Forbidden West 1440p
-
81
Horizon Forbidden West 2160p
-
52