GPU Comparison
RADEON
AMD Radeon VII
CORE STATE
Vega 20
VRAM
16 GB
CLOCK SPEED
1750 MHz
TDP
295 W
BUS WIDTH
4096 bit
ARCHITECTURE
GCN 5.1
PROCESS
7 nm
LAUNCH DATE
2019
VS
GEFORCE
GeForce GTX 660 Ti
CORE STATE
GK104
VRAM
2 GB
CLOCK SPEED
980 MHz
TDP
150 W
BUS WIDTH
192 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
3dmark_3dmark_steel_nomad_dx12
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
VII
GTX 660 Ti
Core Specs
Shading Units
3,840
1,344
-65.0%
Shaders
3,840
1,344
-65.0%
TMUs
240
112
-53.3%
ROPs
64
24
-62.5%
Compute Units
60
—
Clocks
Base Clock
1400 MHz
915 MHz
Boost Clock
1750 MHz
980 MHz
Memory Clock
1000 MHz
2 Gbps effective
1502 MHz
6 Gbps effective
Memory
Memory Size
16 GB
2 GB
VRAM (MB)
16,384
2,048
-87.5%
Memory Type
HBM2
GDDR5
Memory Bus
4096 bit
192 bit
Bandwidth
1.02 TB/s
144.2 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
4 MB
384 KB
Performance
Pixel Rate
112.0 GPixel/s
27.44 GPixel/s
Texture Rate
420.0 GTexel/s
109.8 GTexel/s
FP32 (TFLOPS)
13.44 TFLOPS
2.634 TFLOPS
FP64 (TFLOPS)
3.360 TFLOPS (1:4)
109.8 GFLOPS (1:24)
FP16 (TFLOPS)
26.88 TFLOPS (2:1)
—
Power
TDP
295 W
150 W
TDP (W)
295
150
-49.2%
Suggested PSU
600 W
450 W
Power Connectors
2x 8-pin
2x 6-pin
Architecture
Architecture
GCN 5.1
Kepler
GPU Name
Vega 20
GK104
Generation
Vega II
(Radeon VII)
GeForce 600
Process Size
7 nm
28 nm
Transistors
13,230 million
3,540 million
Die Size
331 mm²
294 mm²
Foundry
TSMC
TSMC
Density
40.0M / mm²
12.0M / mm²
API Support
DirectX
12 (12_1)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.175
OpenCL
2.1
3.0
CUDA
—
3.0
Shader Model
6.7
6.5 (5.1)
Physical
Slot Width
Dual-slot
Dual-slot
Length
280 mm
11 inches
241 mm
9.5 inches
Height
125 mm
4.9 inches
—
Outputs
1x HDMI 2.0b3x DisplayPort 1.4a
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Launch Price
699 USD
299 USD
Production
End-of-life
End-of-life
Predecessor
Vega
GeForce 500
Successor
Navi
GeForce 700