Radeon HD 5870 Eyefinity 6 vs GeForce GTX 660 Rev. 2
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 5870 Eyefinity 6 and 2GB VRAM GeForce GTX 660 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 5870 Eyefinity 6 's Advantages
Larger VRAM bandwidth (153.6GB/s vs 144.2GB/s)
640 additional rendering cores
GeForce GTX 660 Rev. 2 's Advantages
Released 4 years and 6 months late
Boost Clock1032MHz
Lower TDP (140W vs 228W)
Score
Benchmark
FP32 (float)
Radeon HD 5870 Eyefinity 6
+37%
2720
GeForce GTX 660 Rev. 2
1981
Graphics Card
Mar 2010
Release Date
Sep 2014
Evergreen
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
980 MHz
-
Boost Clock
1032 MHz
1200 MHz
Memory Clock
1502 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
192bit
153.6GB/s
Bandwidth
144.2GB/s
Render Config
20
Compute Units
-
1600
Shading Units
960
80
TMUs
80
32
ROPs
24
8 KB (per CU)
L1 Cache
16 KB (per SMX)
512 KB
L2 Cache
384 KB
Theoretical Performance
27.20 GPixel/s
Pixel Rate
20.64 GPixel/s
68.00 GTexel/s
Texture Rate
82.56 GTexel/s
2.720 TFLOPS
FP32 (float)
1.981 TFLOPS
544.0 GFLOPS
FP64 (double)
82.56 GFLOPS
Board Design
228W
TDP
140W
550 W
Suggested PSU
300 W
6x mini-DisplayPort 1.1
Outputs
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
1x 6-pin
Graphics Processor
Cypress
GPU Name
GK104
Cypress XT
(215-0735033)
GPU Variant
-
TeraScale 2
Architecture
Kepler
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
2.154 billion
Transistors
3.54 billion
334 mm²
Die Size
294 mm²
Graphics Features
11.2 (11_0)
DirectX
12 (11_0)
4.4
OpenGL
4.6
1.2
OpenCL
3.0
N/A
Vulkan
1.1
-
CUDA
3.0
5.0
Shader Model
5.1