GPU Comparison
RADEON
ATI Radeon X800 XT Mac Edition
CORE STATE
R423
VRAM
256 MB
CLOCK SPEED
—
TDP
54 W
BUS WIDTH
256 bit
ARCHITECTURE
R400
PROCESS
130 nm
LAUNCH DATE
2004
VS
GEFORCE
GeForce GTX 1660 Ti Mobile
CORE STATE
TU116
VRAM
6 GB
CLOCK SPEED
1590 MHz
TDP
—
BUS WIDTH
192 bit
ARCHITECTURE
Turing
PROCESS
12 nm
LAUNCH DATE
2019
DETAILED SPECIFICATIONS
SPECIFICATION
ATI Radeon X800 XT Mac Edition
GTX 1660 Ti Mobile
Core Specs
Shading Units
—
1,536
Shaders
—
1,536
TMUs
16
96
+500.0%
ROPs
16
48
+200.0%
SM Count
—
24
Clocks
Base Clock
—
1455 MHz
Boost Clock
—
1590 MHz
GPU Clock
475 MHz
—
Memory Clock
500 MHz
1000 Mbps effective
1500 MHz
12 Gbps effective
Memory
Memory Size
256 MB
6 GB
VRAM (MB)
256
6,144
+2300.0%
Memory Type
GDDR3
GDDR6
Memory Bus
256 bit
192 bit
Bandwidth
32.00 GB/s
288.0 GB/s
Cache
L1 Cache
—
64 KB (per SM)
L2 Cache
—
1536 KB
Performance
Pixel Rate
7.600 GPixel/s
76.32 GPixel/s
Texture Rate
7.600 GTexel/s
152.6 GTexel/s
FP32 (TFLOPS)
—
4.884 TFLOPS
FP64 (TFLOPS)
—
152.6 GFLOPS (1:32)
FP16 (TFLOPS)
—
9.769 TFLOPS (2:1)
Power
TDP
54 W
—
TDP (W)
54
—
Suggested PSU
250 W
—
Power Connectors
None
None
Architecture
Architecture
R400
Turing
GPU Name
R423
TU116
Generation
Radeon R400 AGP
(X800)
GeForce 16 Mobile
Process Size
130 nm
12 nm
Transistors
160 million
6,600 million
Die Size
289 mm²
284 mm²
Foundry
TSMC
TSMC
Density
553.6K / mm²
23.2M / mm²
API Support
DirectX
9.0b (9_2)
12 (12_1)
OpenGL
2.1
4.6
Vulkan
—
1.4
OpenCL
—
3.0
CUDA
—
7.5
Shader Model
—
6.8
Physical
Slot Width
Single-slot
MXM Module
Outputs
2x DVI
Portable Device Dependent
Bus Interface
AGP Pro 8x
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Radeon R300
GeForce 10 Mobile
Successor
Radeon R500 AGP
GeForce 20 Mobile