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 GTX 680
CORE STATE
GK104
VRAM
2 GB
CLOCK SPEED
1058 MHz
TDP
195 W
BUS WIDTH
256 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6770
GTX 680
Core Specs
Shading Units
800
1,536
+92.0%
Shaders
800
1,536
+92.0%
TMUs
40
128
+220.0%
ROPs
16
32
+100.0%
Compute Units
10
—
Clocks
Base Clock
—
1006 MHz
Boost Clock
—
1058 MHz
GPU Clock
850 MHz
—
Memory Clock
1200 MHz
4.8 Gbps effective
1502 MHz
6 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
256 bit
Bandwidth
76.80 GB/s
192.3 GB/s
Cache
L1 Cache
8 KB (per CU)
16 KB (per SMX)
L2 Cache
256 KB
512 KB
Performance
Pixel Rate
13.60 GPixel/s
33.86 GPixel/s
Texture Rate
34.00 GTexel/s
135.4 GTexel/s
FP32 (TFLOPS)
1,360.0 GFLOPS
3.250 TFLOPS
FP64 (TFLOPS)
—
135.4 GFLOPS (1:24)
Power
TDP
108 W
195 W
TDP (W)
108
195
+80.6%
Suggested PSU
300 W
450 W
Power Connectors
1x 6-pin
2x 6-pin
Architecture
Architecture
TeraScale 2
Kepler
GPU Name
Juniper
GK104
Generation
Northern Islands
(HD 6700)
GeForce 600
Process Size
40 nm
28 nm
Transistors
1,040 million
3,540 million
Die Size
166 mm²
294 mm²
Foundry
TSMC
TSMC
Density
6.3M / mm²
12.0M / 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
Dual-slot
Length
198 mm
7.8 inches
256 mm
10.1 inches
Height
—
111 mm
4.4 inches
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
129 USD
499 USD
Production
End-of-life
End-of-life
Predecessor
Evergreen
GeForce 500
Successor
Southern Islands
GeForce 700