GPU Comparison
RADEON
AMD Radeon HD 7770M
CORE STATE
Chelsea
VRAM
1024 MB
CLOCK SPEED
—
TDP
32 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2012
VS
GEFORCE
GeForce GTX 1660 Ti
CORE STATE
TU116
VRAM
6 GB
CLOCK SPEED
1770 MHz
TDP
120 W
BUS WIDTH
192 bit
ARCHITECTURE
Turing
PROCESS
12 nm
LAUNCH DATE
2019
PERFORMANCE BENCHMARKS
3dmark_3dmark_steel_nomad_dx12
geekbench_opencl
geekbench_vulkan
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7770M
GTX 1660 Ti
Core Specs
Shading Units
512
1,536
+200.0%
Shaders
512
1,536
+200.0%
TMUs
32
96
+200.0%
ROPs
16
48
+200.0%
Compute Units
8
—
SM Count
—
24
Clocks
Base Clock
—
1500 MHz
Boost Clock
—
1770 MHz
GPU Clock
675 MHz
—
Memory Clock
1000 MHz
4 Gbps effective
1500 MHz
12 Gbps effective
Memory
Memory Size
1024 MB
6 GB
VRAM (MB)
1,024
6,144
+500.0%
Memory Type
GDDR5
GDDR6
Memory Bus
128 bit
192 bit
Bandwidth
64.00 GB/s
288.0 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
256 KB
1536 KB
Performance
Pixel Rate
10.80 GPixel/s
84.96 GPixel/s
Texture Rate
21.60 GTexel/s
169.9 GTexel/s
FP32 (TFLOPS)
691.2 GFLOPS
5.437 TFLOPS
FP64 (TFLOPS)
43.20 GFLOPS (1:16)
169.9 GFLOPS (1:32)
FP16 (TFLOPS)
—
10.87 TFLOPS (2:1)
Power
TDP
32 W
120 W
TDP (W)
32
120
+275.0%
Suggested PSU
—
300 W
Power Connectors
—
1x 8-pin
Architecture
Architecture
GCN 1.0
Turing
GPU Name
Chelsea
TU116
Generation
London
(HD 7700M)
GeForce 16
Process Size
28 nm
12 nm
Transistors
1,500 million
6,600 million
Die Size
123 mm²
284 mm²
Foundry
TSMC
TSMC
Density
12.2M / mm²
23.2M / mm²
API Support
DirectX
12 (11_1)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.2.170
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
Length
—
229 mm
9 inches
Height
—
111 mm
4.4 inches
Outputs
Portable Device Dependent
1x DVI1x HDMI 2.01x DisplayPort 1.4a
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
—
279 USD
Production
End-of-life
End-of-life
Predecessor
Vancouver
GeForce 10
Successor
Solar System
GeForce 20