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GPU Comparison
NVIDIA GeForce GTX 660 vs ATI Radeon X1950 XTX Uber Edition
NVIDIA GeForce GTX 660 vs ATI Radeon X1950 XTX Uber Edition
VS
NVIDIA GeForce GTX 660
ATI Radeon X1950 XTX Uber Edition
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 512MB VRAM Radeon X1950 XTX Uber Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 660 's Advantages
Released 5 years and 8 months late
Boost Clock1032MHz
Larger VRAM bandwidth (144.2GB/s vs 67.20GB/s)
960 additional rendering cores
ATI Radeon X1950 XTX Uber Edition 's Advantages
Lower TDP (125W vs 140W)
Score
GeForce GTX 660
VS
Radeon X1950 XTX Uber Edition
Graphics Card
Sep 2012
Release Date
Jan 2007
GeForce 600
Generation
Radeon R500 PCIe
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
980 MHz
Base Clock
-
1032 MHz
Boost Clock
-
1502 MHz
Memory Clock
1050 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR4
192bit
Memory Bus
256bit
144.2GB/s
Bandwidth
67.20GB/s
Render Config
-
SM Count
-
-
Compute Units
-
960
Shading Units
-
80
TMUs
16
24
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
-
384 KB
L2 Cache
-
Theoretical Performance
20.64 GPixel/s
Pixel Rate
10.72 GPixel/s
82.56 GTexel/s
Texture Rate
10.72 GTexel/s
-
FP16 (half)
-
1.981 TFLOPS
FP32 (float)
-
82.56 GFLOPS
FP64 (double)
-
Graphics Processor
GK106
GPU Name
R580+
GK106-400-A1
GPU Variant
R580+ XT (215BAABKA31FG)
Kepler
Architecture
R500
TSMC
Foundry
TSMC
28 nm
Process Size
90 nm
2.54 billion
Transistors
0.384 billion
221 mm²
Die Size
352 mm²
Board Design
140W
TDP
125W
300 W
Suggested PSU
300 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x VHDCI
1x 6-pin
Power Connectors
1x 6-pin
Graphics Features
12 (11_0)
DirectX
9.0c (9_3)
4.6
OpenGL
2.1 (full) 3.0 (partial)
3.0
OpenCL
N/A
1.1
Vulkan
N/A
3.0
CUDA
-
5.1
Shader Model
3.0
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