GPU Comparison
RADEON
AMD Radeon R9 M290X
CORE STATE
Neptune
VRAM
4 GB
CLOCK SPEED
900 MHz
TDP
100 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2014
VS
GEFORCE
GeForce GTX 660
CORE STATE
GK106
VRAM
2 GB
CLOCK SPEED
1032 MHz
TDP
140 W
BUS WIDTH
192 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
R9 M290X
GTX 660
Core Specs
Shading Units
1,280
960
-25.0%
Shaders
1,280
960
-25.0%
TMUs
80
80
0.0%
ROPs
32
24
-25.0%
Compute Units
20
—
Clocks
Base Clock
850 MHz
980 MHz
Boost Clock
900 MHz
1032 MHz
Memory Clock
1200 MHz
4.8 Gbps effective
1502 MHz
6 Gbps effective
Memory
Memory Size
4 GB
2 GB
VRAM (MB)
4,096
2,048
-50.0%
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
192 bit
Bandwidth
153.6 GB/s
144.2 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
384 KB
Performance
Pixel Rate
28.80 GPixel/s
20.64 GPixel/s
Texture Rate
72.00 GTexel/s
82.56 GTexel/s
FP32 (TFLOPS)
2.304 TFLOPS
1.981 TFLOPS
FP64 (TFLOPS)
144.0 GFLOPS (1:16)
82.56 GFLOPS (1:24)
Power
TDP
100 W
140 W
TDP (W)
100
140
+40.0%
Suggested PSU
—
300 W
Power Connectors
None
1x 6-pin
Architecture
Architecture
GCN 1.0
Kepler
GPU Name
Neptune
GK106
Generation
Gem System
(R9 M200)
GeForce 600
Process Size
28 nm
28 nm
Transistors
2,800 million
2,540 million
Die Size
212 mm²
221 mm²
Foundry
TSMC
TSMC
Density
13.2M / mm²
11.5M / mm²
API Support
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.175
OpenCL
2.1 (1.2)
3.0
CUDA
—
3.0
Shader Model
6.5 (5.1)
6.5 (5.1)
Physical
Slot Width
MXM Module
Dual-slot
Length
—
241 mm
9.5 inches
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Launch Price
—
229 USD
Production
End-of-life
End-of-life
Predecessor
Solar System
GeForce 500
Successor
Polaris Mobile
GeForce 700