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 RX 6600S
CORE STATE
Navi 23
VRAM
4 GB
CLOCK SPEED
2000 MHz
TDP
80 W
BUS WIDTH
128 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2022
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
HD 8790M
RX 6600S
Core Specs
Shading Units
384
1,792
+366.7%
Shaders
384
1,792
+366.7%
TMUs
24
112
+366.7%
ROPs
8
64
+700.0%
Compute Units
6
28
+366.7%
Clocks
Base Clock
850 MHz
1700 MHz
Boost Clock
900 MHz
2000 MHz
Game Clock
—
1881 MHz
Memory Clock
1000 MHz
4 Gbps effective
1750 MHz
14 Gbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
GDDR5
GDDR6
Memory Bus
128 bit
128 bit
Bandwidth
64.00 GB/s
224.0 GB/s
Cache
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
256 KB
2 MB
L3 Cache
—
32 MB
L0 Cache
—
32 KB per WGP
Performance
Pixel Rate
7.200 GPixel/s
128.0 GPixel/s
Texture Rate
21.60 GTexel/s
224.0 GTexel/s
FP32 (TFLOPS)
691.2 GFLOPS
7.168 TFLOPS
FP64 (TFLOPS)
43.20 GFLOPS (1:16)
448.0 GFLOPS (1:16)
FP16 (TFLOPS)
—
14.34 TFLOPS (2:1)
AI/RT
RT Cores
—
28
Power
TDP
—
80 W
TDP (W)
—
80
Power Connectors
None
None
Architecture
Architecture
GCN 1.0
RDNA 2.0
GPU Name
Mars
Navi 23
Generation
Solar System
(HD 8700M)
Navi Mobile
(RX 6000M)
Process Size
28 nm
7 nm
Transistors
950 million
11,060 million
Die Size
77 mm²
237 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
46.7M / mm²
API Support
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.4
OpenCL
2.1 (1.2)
2.1
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
MXM Module
IGP
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
MXM-A (3.0)
PCIe 4.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
London
Polaris Mobile
Successor
Gem System
—