GPU Comparison
RADEON
AMD Radeon HD 6770
CORE STATE
Juniper
VRAM
1024 MB
CLOCK SPEED
—
TDP
108 W
BUS WIDTH
128 bit
ARCHITECTURE
TeraScale 2
PROCESS
40 nm
LAUNCH DATE
2011
VS
GEFORCE
GeForce GT 755M
CORE STATE
GK107
VRAM
2 GB
CLOCK SPEED
1020 MHz
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6770
GT 755M
Core Specs
Shading Units
800
384
-52.0%
Shaders
800
384
-52.0%
TMUs
40
32
-20.0%
ROPs
16
16
0.0%
Compute Units
10
—
Clocks
Base Clock
—
980 MHz
Boost Clock
—
1020 MHz
GPU Clock
850 MHz
—
Memory Clock
1200 MHz
4.8 Gbps effective
1350 MHz
5.4 Gbps effective
Memory
Memory Size
1024 MB
2 GB
VRAM (MB)
1,024
2,048
+100.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
128 bit
Bandwidth
76.80 GB/s
86.40 GB/s
Cache
L1 Cache
8 KB (per CU)
16 KB (per SMX)
L2 Cache
256 KB
256 KB
Performance
Pixel Rate
13.60 GPixel/s
8.160 GPixel/s
Texture Rate
34.00 GTexel/s
32.64 GTexel/s
FP32 (TFLOPS)
1,360.0 GFLOPS
783.4 GFLOPS
FP64 (TFLOPS)
—
32.64 GFLOPS (1:24)
Power
TDP
108 W
50 W
TDP (W)
108
50
-53.7%
Suggested PSU
300 W
—
Power Connectors
1x 6-pin
None
Architecture
Architecture
TeraScale 2
Kepler
GPU Name
Juniper
GK107
Generation
Northern Islands
(HD 6700)
GeForce 700M
Process Size
40 nm
28 nm
Transistors
1,040 million
1,270 million
Die Size
166 mm²
118 mm²
Foundry
TSMC
TSMC
Density
6.3M / mm²
10.8M / mm²
API Support
DirectX
11.2 (11_0)
12 (11_0)
OpenGL
4.4
4.6
Vulkan
—
1.2.175
OpenCL
1.2
3.0
CUDA
—
3.0
Shader Model
5.0
6.5 (5.1)
Physical
Slot Width
Dual-slot
MXM Module
Length
198 mm
7.8 inches
—
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Portable Device Dependent
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
129 USD
—
Production
End-of-life
End-of-life
Predecessor
Evergreen
GeForce 600M
Successor
Southern Islands
GeForce 800M