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 HD 8850M
CORE STATE
Venus
VRAM
2 GB
CLOCK SPEED
625 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 8790M
HD 8850M
Core Specs
Shading Units
384
640
+66.7%
Shaders
384
640
+66.7%
TMUs
24
40
+66.7%
ROPs
8
16
+100.0%
Compute Units
6
10
+66.7%
Clocks
Base Clock
850 MHz
575 MHz
Boost Clock
900 MHz
625 MHz
Memory Clock
1000 MHz
4 Gbps effective
1000 MHz
4 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
128 bit
Bandwidth
64.00 GB/s
64.00 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
256 KB
Performance
Pixel Rate
7.200 GPixel/s
10.00 GPixel/s
Texture Rate
21.60 GTexel/s
25.00 GTexel/s
FP32 (TFLOPS)
691.2 GFLOPS
800.0 GFLOPS
FP64 (TFLOPS)
43.20 GFLOPS (1:16)
50.00 GFLOPS (1:16)
Power
Power Connectors
None
—
Architecture
Architecture
GCN 1.0
GCN 1.0
GPU Name
Mars
Venus
Generation
Solar System
(HD 8700M)
Solar System
(HD 8800M)
Process Size
28 nm
28 nm
Transistors
950 million
1,500 million
Die Size
77 mm²
123 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
12.2M / 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
MXM-A (3.0)
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
London
London
Successor
Gem System
Gem System