Home GPU Comparison NVIDIA GeForce GTX 660 vs AMD Radeon R7 250

NVIDIA GeForce GTX 660 vs AMD Radeon R7 250

NVIDIA GeForce GTX 660
VS
AMD Radeon R7 250
NVIDIA GeForce GTX 660
AMD Radeon R7 250
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 1024MB VRAM Radeon R7 250 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 's Advantages
Boost Clock1032MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (144.2GB/s vs 28.80GB/s)
448 additional rendering cores
AMD Radeon R7 250 's Advantages
Released 1 years and 1 months late
Lower TDP (55W vs 140W)

Score

Benchmark

FP32 (float)
GeForce GTX 660 +176%
1.981 TFLOPS
Radeon R7 250
0.717 TFLOPS
GeForce GTX 660
VS
Radeon R7 250

Graphics Card

Sep 2012
Release Date
Oct 2013
GeForce 600
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

980 MHz
Base Clock
-
1032 MHz
Boost Clock
-
1502 MHz
Memory Clock
900 MHz

Memory

2GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
192bit
Memory Bus
128bit
144.2GB/s
Bandwidth
28.80GB/s

Render Config

-
Compute Units
8
-
-
-
960
Shading Units
512
80
TMUs
32
24
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
384 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

20.64 GPixel/s
Pixel Rate
11.20 GPixel/s
82.56 GTexel/s
Texture Rate
22.40 GTexel/s
-
-
-
1.981 TFLOPS
FP32 (float)
716.8 GFLOPS
82.56 GFLOPS
FP64 (double)
44.80 GFLOPS

Board Design

140W
TDP
55W
300 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 6-pin
Power Connectors
None

Graphics Processor

GK106
GPU Name
Cape Verde
GK106-400-A1
GPU Variant
Cape Verde PRO
Kepler
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.54 billion
Transistors
1.5 billion
221 mm²
Die Size
123 mm²

Graphics Features

12 (11_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
1.2
1.1
Vulkan
1.2
3.0
CUDA
-
5.1
Shader Model
5.1

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