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GPU Comparison
NVIDIA GeForce GTX 660 Rev. 2 vs AMD Radeon HD 6970 X2
NVIDIA GeForce GTX 660 Rev. 2 vs AMD Radeon HD 6970 X2
VS
NVIDIA GeForce GTX 660 Rev. 2
AMD Radeon HD 6970 X2
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 2GB VRAM Radeon HD 6970 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 660 Rev. 2 's Advantages
Boost Clock1032MHz
Lower TDP (140W vs 375W)
AMD Radeon HD 6970 X2 's Advantages
Larger VRAM bandwidth (176.0GB/s vs 144.2GB/s)
576 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GTX 660 Rev. 2
1.981 TFLOPS
Radeon HD 6970 X2
+36%
2.703 TFLOPS
GeForce GTX 660 Rev. 2
VS
Radeon HD 6970 X2
Graphics Card
Sep 2014
Release Date
Unknown
GeForce 600
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
980 MHz
Base Clock
-
1032 MHz
Boost Clock
-
1502 MHz
Memory Clock
1375 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
192bit
Memory Bus
256bit
144.2GB/s
Bandwidth
176.0GB/s
Render Config
-
SM Count
-
-
Compute Units
24
960
Shading Units
1536
80
TMUs
96
24
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
8 KB (per CU)
384 KB
L2 Cache
512 KB
Theoretical Performance
20.64 GPixel/s
Pixel Rate
28.16 GPixel/s
82.56 GTexel/s
Texture Rate
84.48 GTexel/s
-
FP16 (half)
-
1.981 TFLOPS
FP32 (float)
2.703 TFLOPS
82.56 GFLOPS
FP64 (double)
-
Graphics Processor
GK104
GPU Name
Antilles
-
GPU Variant
Antilles XT (215-0807027)
Kepler
Architecture
TeraScale 3
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
3.54 billion
Transistors
2.64 billion
294 mm²
Die Size
389 mm²
Board Design
140W
TDP
375W
300 W
Suggested PSU
750 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
1x 6-pin
Power Connectors
3x 8-pin
Graphics Features
12 (11_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
3.0
OpenCL
1.2
1.1
Vulkan
N/A
3.0
CUDA
-
5.1
Shader Model
5.0
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