GPU Comparison
RADEON
AMD Radeon HD 7990
CORE STATE
Malta
VRAM
3 GB
CLOCK SPEED
1000 MHz
TDP
375 W
BUS WIDTH
384 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2013
VS
GEFORCE
GeForce GTX 1660 Ti Max-Q
CORE STATE
TU116
VRAM
6 GB
CLOCK SPEED
1335 MHz
TDP
—
BUS WIDTH
192 bit
ARCHITECTURE
Turing
PROCESS
12 nm
LAUNCH DATE
2019
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7990
GTX 1660 Ti Max-Q
Core Specs
Shading Units
2,048
1,536
-25.0%
Shaders
2,048
1,536
-25.0%
TMUs
128
96
-25.0%
ROPs
32
48
+50.0%
Compute Units
32
—
SM Count
—
24
Clocks
Base Clock
950 MHz
1140 MHz
Boost Clock
1000 MHz
1335 MHz
Memory Clock
1500 MHz
6 Gbps effective
1500 MHz
12 Gbps effective
Memory
Memory Size
3 GB
6 GB
VRAM (MB)
3,072
6,144
+100.0%
Memory Type
GDDR5
GDDR6
Memory Bus
384 bit
192 bit
Bandwidth
288.0 GB/s
288.0 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
768 KB
1536 KB
Performance
Pixel Rate
32.00 GPixel/s
64.08 GPixel/s
Texture Rate
128.0 GTexel/s
128.2 GTexel/s
FP32 (TFLOPS)
4.096 TFLOPS
4.101 TFLOPS
FP64 (TFLOPS)
1,024.0 GFLOPS (1:4)
128.2 GFLOPS (1:32)
FP16 (TFLOPS)
—
8.202 TFLOPS (2:1)
Power
TDP
375 W
—
TDP (W)
375
—
Suggested PSU
750 W
—
Power Connectors
2x 8-pin
None
Architecture
Architecture
GCN 1.0
Turing
GPU Name
Malta
TU116
Generation
Southern Islands
(HD 7900)
GeForce 16 Mobile
Process Size
28 nm
12 nm
Transistors
4,313 million
6,600 million
Die Size
365 mm²
284 mm²
Foundry
TSMC
TSMC
Density
11.8M / mm²
23.2M / mm²
API Support
DirectX
12 (11_1)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.2.175
1.4
OpenCL
2.1 (1.2)
3.0
CUDA
—
7.5
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
Dual-slot
MXM Module
Length
304 mm
12 inches
—
Height
106 mm
4.2 inches
—
Outputs
1x DVI4x mini-DisplayPort 1.2
Portable Device Dependent
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Launch Price
999 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
GeForce 10 Mobile
Successor
Sea Islands
GeForce 20 Mobile