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
RADEON
Radeon R9 M295X
CORE STATE
Amethyst
VRAM
4 GB
CLOCK SPEED
—
TDP
250 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6770
R9 M295X
Core Specs
Shading Units
800
2,048
+156.0%
Shaders
800
2,048
+156.0%
TMUs
40
128
+220.0%
ROPs
16
32
+100.0%
Compute Units
10
32
+220.0%
Clocks
GPU Clock
850 MHz
723 MHz
Memory Clock
1200 MHz
4.8 Gbps effective
1250 MHz
5 Gbps effective
Memory
Memory Size
1024 MB
4 GB
VRAM (MB)
1,024
4,096
+300.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
256 bit
Bandwidth
76.80 GB/s
160.0 GB/s
Cache
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
512 KB
Performance
Pixel Rate
13.60 GPixel/s
23.14 GPixel/s
Texture Rate
34.00 GTexel/s
92.54 GTexel/s
FP32 (TFLOPS)
1,360.0 GFLOPS
2.961 TFLOPS
FP64 (TFLOPS)
—
185.1 GFLOPS (1:16)
FP16 (TFLOPS)
—
2.961 TFLOPS (1:1)
Power
TDP
108 W
250 W
TDP (W)
108
250
+131.5%
Suggested PSU
300 W
—
Power Connectors
1x 6-pin
None
Architecture
Architecture
TeraScale 2
GCN 3.0
GPU Name
Juniper
Amethyst
Generation
Northern Islands
(HD 6700)
Gem System
(R9 M200)
Process Size
40 nm
28 nm
Transistors
1,040 million
5,000 million
Die Size
166 mm²
366 mm²
Foundry
TSMC
TSMC
Density
6.3M / mm²
13.7M / mm²
API Support
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
Vulkan
—
1.2.170
OpenCL
1.2
2.1
Shader Model
5.0
6.5
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
MXM-B (3.0)
Other
Launch Price
129 USD
—
Production
End-of-life
End-of-life
Predecessor
Evergreen
Solar System
Successor
Southern Islands
Polaris Mobile