GPU Comparison
GPU
Intel Iris Xe MAX Graphics
CORE STATE
DG1
VRAM
4 GB
CLOCK SPEED
1650 MHz
TDP
25 W
BUS WIDTH
128 bit
ARCHITECTURE
Generation 12.1
PROCESS
10 nm
LAUNCH DATE
2020
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
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Iris Xe MAX Graphics
GTX 660 Ti
Core Specs
Shading Units
768
1,344
+75.0%
Shaders
768
1,344
+75.0%
TMUs
48
112
+133.3%
ROPs
24
24
0.0%
Execution Units
96
—
Clocks
Base Clock
300 MHz
915 MHz
Boost Clock
1650 MHz
980 MHz
Memory Clock
2133 MHz
4.3 Gbps effective
1502 MHz
6 Gbps effective
Memory
Memory Size
4 GB
2 GB
VRAM (MB)
4,096
2,048
-50.0%
Memory Type
LPDDR4X
GDDR5
Memory Bus
128 bit
192 bit
Bandwidth
68.26 GB/s
144.2 GB/s
Cache
L1 Cache
—
16 KB (per SMX)
L2 Cache
1024 KB
384 KB
L3 Cache
16 MB
—
Performance
Pixel Rate
39.60 GPixel/s
27.44 GPixel/s
Texture Rate
79.20 GTexel/s
109.8 GTexel/s
FP32 (TFLOPS)
2.534 TFLOPS
2.634 TFLOPS
FP64 (TFLOPS)
633.6 GFLOPS (1:4)
109.8 GFLOPS (1:24)
FP16 (TFLOPS)
5.069 TFLOPS (2:1)
—
Power
TDP
25 W
150 W
TDP (W)
25
150
+500.0%
Suggested PSU
200 W
450 W
Power Connectors
—
2x 6-pin
Architecture
Architecture
Generation 12.1
Kepler
GPU Name
DG1
GK104
Generation
Xe Graphics
GeForce 600
Process Size
10 nm
28 nm
Transistors
—
3,540 million
Die Size
95 mm²
294 mm²
Foundry
Intel
TSMC
Density
—
12.0M / mm²
API Support
DirectX
12 (12_1)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.4
1.2.175
OpenCL
3.0
3.0
CUDA
—
3.0
Shader Model
6.6
6.5 (5.1)
Physical
Slot Width
IGP
Dual-slot
Length
—
241 mm
9.5 inches
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Other
Launch Price
—
299 USD
Production
End-of-life
End-of-life
Predecessor
Graphics
GeForce 500
Successor
Alchemist
GeForce 700