GeForce GTX 660 Ti vs Radeon HD 8490 OEM
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 1024MB VRAM Radeon HD 8490 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GTX 660 Ti 's Advantages
Boost Clock980MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (144.2GB/s vs 14.40GB/s)
1184 additional rendering cores
Radeon HD 8490 OEM 's Advantages
Released 11 months late
Lower TDP (35W vs 150W)
Score
Benchmark
FP32 (float)
GeForce GTX 660 Ti
+840%
2634
Radeon HD 8490 OEM
280
Graphics Card
Aug 2012
Release Date
Jul 2013
GeForce 600
Generation
Sea Islands
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
900 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
192bit
Memory Bus
64bit
144.2GB/s
Bandwidth
14.40GB/s
Render Config
-
Compute Units
2
1344
Shading Units
160
112
TMUs
8
24
ROPs
4
16 KB (per SMX)
L1 Cache
8 KB (per CU)
384 KB
L2 Cache
128 KB
Theoretical Performance
27.44 GPixel/s
Pixel Rate
3.500 GPixel/s
109.8 GTexel/s
Texture Rate
7.000 GTexel/s
2.634 TFLOPS
FP32 (float)
280.0 GFLOPS
109.8 GFLOPS
FP64 (double)
-
Board Design
150W
TDP
35W
450 W
Suggested PSU
200 W
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
Outputs
1x DVI
1x DisplayPort 1.1
2x 6-pin
Power Connectors
None
Graphics Processor
GK104
GPU Name
Caicos
GK104-300-KD-A2
GPU Variant
Caicos XTX
Kepler
Architecture
TeraScale 2
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
3.54 billion
Transistors
0.37 billion
294 mm²
Die Size
67 mm²
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