Home GPU Comparison NVIDIA GeForce GTX 660 Ti vs ATI Radeon HD 3690

NVIDIA GeForce GTX 660 Ti vs ATI Radeon HD 3690

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 256MB VRAM Radeon HD 3690 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Ti 's Advantages
Released 4 years and 5 months late
Boost Clock980MHz
More VRAM (2GB vs 256GB)
Larger VRAM bandwidth (144.2GB/s vs 26.56GB/s)
1024 additional rendering cores
ATI Radeon HD 3690 's Advantages
Lower TDP (75W vs 150W)

Score

Benchmark

FP32 (float)
GeForce GTX 660 Ti +513%
2.634 TFLOPS
Radeon HD 3690
0.429 TFLOPS
VS

Graphics Card

Aug 2012
Release Date
Mar 2008
GeForce 600
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

915 MHz
Base Clock
-
980 MHz
Boost Clock
-
1502 MHz
Memory Clock
830 MHz

Memory

2GB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
192bit
Memory Bus
128bit
144.2GB/s
Bandwidth
26.56GB/s

Render Config

-
Compute Units
4
-
-
-
1344
Shading Units
320
112
TMUs
16
24
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
-
384 KB
L2 Cache
128 KB
-
-
-

Theoretical Performance

27.44 GPixel/s
Pixel Rate
10.72 GPixel/s
109.8 GTexel/s
Texture Rate
10.72 GTexel/s
-
-
-
2.634 TFLOPS
FP32 (float)
428.8 GFLOPS
109.8 GFLOPS
FP64 (double)
85.76 GFLOPS

Board Design

150W
TDP
75W
450 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x S-Video
2x 6-pin
Power Connectors
1x 6-pin

Graphics Processor

GK104
GPU Name
RV670
GK104-300-KD-A2
GPU Variant
RV670 PRO (215-0708003)
Kepler
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
3.54 billion
Transistors
0.666 billion
294 mm²
Die Size
192 mm²

Graphics Features

12 (11_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3 (full) 4.0 (partial)
3.0
OpenCL
N/A
1.1
Vulkan
N/A
3.0
CUDA
-
5.1
Shader Model
4.1

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