GPU Comparison
RADEON
AMD 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
VS
RADEON
Radeon R7 M440
CORE STATE
Meso
VRAM
4 GB
CLOCK SPEED
—
TDP
—
BUS WIDTH
64 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 8790M
R7 M440
Core Specs
Shading Units
384
320
-16.7%
Shaders
384
320
-16.7%
TMUs
24
20
-16.7%
ROPs
8
8
0.0%
Compute Units
6
5
-16.7%
Clocks
Base Clock
850 MHz
—
Boost Clock
900 MHz
—
GPU Clock
—
891 MHz
Memory Clock
1000 MHz
4 Gbps effective
900 MHz
1800 Mbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
64 bit
Bandwidth
64.00 GB/s
14.40 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
128 KB
Performance
Pixel Rate
7.200 GPixel/s
7.128 GPixel/s
Texture Rate
21.60 GTexel/s
17.82 GTexel/s
FP32 (TFLOPS)
691.2 GFLOPS
570.2 GFLOPS
FP64 (TFLOPS)
43.20 GFLOPS (1:16)
35.64 GFLOPS (1:16)
FP16 (TFLOPS)
—
570.2 GFLOPS (1:1)
Power
Power Connectors
None
—
Architecture
Architecture
GCN 1.0
GCN 3.0
GPU Name
Mars
Meso
Generation
Solar System
(HD 8700M)
Gem System
(R7 M400)
Process Size
28 nm
28 nm
Transistors
950 million
1,550 million
Die Size
77 mm²
125 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
12.4M / mm²
API Support
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.170
OpenCL
2.1 (1.2)
2.1
Shader Model
6.5 (5.1)
6.5
Physical
Slot Width
MXM Module
IGP
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
MXM-A (3.0)
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
London
Solar System
Successor
Gem System
Polaris Mobile