GPU Comparison
RADEON
AMD Radeon Pro W6900X
CORE STATE
Navi 21
VRAM
32 GB
CLOCK SPEED
2171 MHz
TDP
300 W
BUS WIDTH
256 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2021
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
Pro W6900X
GTX 660
Core Specs
Shading Units
5,120
960
-81.3%
Shaders
5,120
960
-81.3%
TMUs
320
80
-75.0%
ROPs
128
24
-81.3%
Compute Units
80
—
Clocks
Base Clock
1825 MHz
980 MHz
Boost Clock
2171 MHz
1032 MHz
Memory Clock
2000 MHz
16 Gbps effective
1502 MHz
6 Gbps effective
Memory
Memory Size
32 GB
2 GB
VRAM (MB)
32,768
2,048
-93.8%
Memory Type
GDDR6
GDDR5
Memory Bus
256 bit
192 bit
Bandwidth
512.0 GB/s
144.2 GB/s
Cache
L1 Cache
128 KB per Array
16 KB (per SMX)
L2 Cache
4 MB
384 KB
L3 Cache
128 MB
—
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
277.9 GPixel/s
20.64 GPixel/s
Texture Rate
694.7 GTexel/s
82.56 GTexel/s
FP32 (TFLOPS)
22.23 TFLOPS
1.981 TFLOPS
FP64 (TFLOPS)
1,389.4 GFLOPS (1:16)
82.56 GFLOPS (1:24)
FP16 (TFLOPS)
44.46 TFLOPS (2:1)
—
AI/RT
RT Cores
80
—
Power
TDP
300 W
140 W
TDP (W)
300
140
-53.3%
Suggested PSU
700 W
300 W
Power Connectors
—
1x 6-pin
Architecture
Architecture
RDNA 2.0
Kepler
GPU Name
Navi 21
GK106
Generation
Radeon Pro Mac
(Navi II Series)
GeForce 600
Process Size
7 nm
28 nm
Transistors
26,800 million
2,540 million
Die Size
520 mm²
221 mm²
Foundry
TSMC
TSMC
Density
51.5M / mm²
11.5M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.4
1.2.175
OpenCL
2.1
3.0
CUDA
—
3.0
Shader Model
6.8
6.5 (5.1)
Physical
Slot Width
—
Dual-slot
Length
267 mm
10.5 inches
241 mm
9.5 inches
Height
120 mm
4.7 inches
—
Outputs
1x HDMI 2.14x Thunderbolt
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
Apple MPX
PCIe 3.0 x16
Other
Launch Price
5,999 USD
229 USD
Production
End-of-life
End-of-life
Predecessor
—
GeForce 500
Successor
—
GeForce 700