GPU Comparison
RADEON
AMD Radeon HD 8670M
CORE STATE
Sun
VRAM
1024 MB
CLOCK SPEED
975 MHz
TDP
—
BUS WIDTH
64 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2013
VS
RADEON
Radeon HD 8790M
CORE STATE
Mars
VRAM
2 GB
CLOCK SPEED
900 MHz
TDP
—
BUS WIDTH
128 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 8670M
HD 8790M
Core Specs
Shading Units
320
384
+20.0%
Shaders
320
384
+20.0%
TMUs
20
24
+20.0%
ROPs
8
8
0.0%
Compute Units
5
6
+20.0%
Clocks
Base Clock
925 MHz
850 MHz
Boost Clock
975 MHz
900 MHz
Memory Clock
900 MHz
1800 Mbps effective
1000 MHz
4 Gbps effective
Memory
Memory Size
1024 MB
2 GB
VRAM (MB)
1,024
2,048
+100.0%
Memory Type
DDR3
GDDR5
Memory Bus
64 bit
128 bit
Bandwidth
14.40 GB/s
64.00 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
128 KB
256 KB
Performance
Pixel Rate
7.800 GPixel/s
7.200 GPixel/s
Texture Rate
19.50 GTexel/s
21.60 GTexel/s
FP32 (TFLOPS)
624.0 GFLOPS
691.2 GFLOPS
FP64 (TFLOPS)
39.00 GFLOPS (1:16)
43.20 GFLOPS (1:16)
Power
Power Connectors
—
None
Architecture
Architecture
GCN 1.0
GCN 1.0
GPU Name
Sun
Mars
Generation
Solar System
(HD 8600M)
Solar System
(HD 8700M)
Process Size
28 nm
28 nm
Transistors
690 million
950 million
Die Size
56 mm²
77 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
12.3M / mm²
API Support
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.170
OpenCL
2.1 (1.2)
2.1 (1.2)
Shader Model
6.5 (5.1)
6.5 (5.1)
Physical
Slot Width
—
MXM Module
Outputs
—
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
MXM-A (3.0)
Other
Production
End-of-life
End-of-life
Predecessor
London
London
Successor
Gem System
Gem System