AMD Radeon R9 295X2 vs NVIDIA GeForce GTX 660 Rev. 2

GPU · Specs Compare

Products
GPU AMD Radeon R9 295X2 AMD · 2014-04
GPU NVIDIA GeForce GTX 660 Rev. 2 NVIDIA · 2014-09
Graphics Card
Release Date
Apr 2014
Sep 2014
Generation
Volcanic Islands
GeForce 600
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1250 MHz
1502 MHz
Base Clock
—
980 MHz
Boost Clock
—
1032 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
512bit
192bit
Bandwidth
320.0GB/s
144.2GB/s
Render Config
Compute Units
44
—
Shading Units
2816
960
TMUs
176
80
ROPs
64
24
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
1024 KB
384 KB
Theoretical Performance
Pixel Rate
65.15 GPixel/s
20.64 GPixel/s
Texture Rate
179.2 GTexel/s
82.56 GTexel/s
FP32 (float)
5.733 TFLOPS
1.981 TFLOPS
FP64 (double)
716.7 GFLOPS
82.56 GFLOPS
Graphics Processor
GPU Name
Vesuvius
GK104
GPU Variant
Vesuvius XT(215-0852022)
—
Architecture
GCN 2.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
6.2 billion
3.54 billion
Die Size
438 mm²
294 mm²
Board Design
TDP
500W
140W
Suggested PSU
900 W
300 W
Outputs
1x DVI4x mini-DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 8-pin
1x 6-pin
Graphics Features
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
2.0
3.0
Vulkan
1.2
1.1
Shader Model
6.3
5.1
CUDA
—
3.0
▲ Specs Compare Data sourced from official specifications and benchmark tests.