GPU Comparison
RADEON
AMD 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
VS
RADEON
Radeon Pro W6800X
CORE STATE
Navi 21
VRAM
32 GB
CLOCK SPEED
2087 MHz
TDP
200 W
BUS WIDTH
256 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
HD 8850M
Pro W6800X
Core Specs
Shading Units
640
3,840
+500.0%
Shaders
640
3,840
+500.0%
TMUs
40
240
+500.0%
ROPs
16
96
+500.0%
Compute Units
10
60
+500.0%
Clocks
Base Clock
575 MHz
1800 MHz
Boost Clock
625 MHz
2087 MHz
Memory Clock
1000 MHz
4 Gbps effective
2000 MHz
16 Gbps effective
Memory
Memory Size
2 GB
32 GB
VRAM (MB)
2,048
32,768
+1500.0%
Memory Type
GDDR5
GDDR6
Memory Bus
128 bit
256 bit
Bandwidth
64.00 GB/s
512.0 GB/s
Cache
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
256 KB
4 MB
L3 Cache
—
128 MB
L0 Cache
—
32 KB per WGP
Performance
Pixel Rate
10.00 GPixel/s
200.4 GPixel/s
Texture Rate
25.00 GTexel/s
500.9 GTexel/s
FP32 (TFLOPS)
800.0 GFLOPS
16.03 TFLOPS
FP64 (TFLOPS)
50.00 GFLOPS (1:16)
1,001.8 GFLOPS (1:16)
FP16 (TFLOPS)
—
32.06 TFLOPS (2:1)
AI/RT
RT Cores
—
60
Power
TDP
—
200 W
TDP (W)
—
200
Suggested PSU
—
550 W
Power Connectors
—
Apple MPX
Architecture
Architecture
GCN 1.0
RDNA 2.0
GPU Name
Venus
Navi 21
Generation
Solar System
(HD 8800M)
Radeon Pro Mac
(Navi II Series)
Process Size
28 nm
7 nm
Transistors
1,500 million
26,800 million
Die Size
123 mm²
520 mm²
Foundry
TSMC
TSMC
Density
12.2M / mm²
51.5M / 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
—
Quad-slot
Length
—
267 mm
10.5 inches
Height
—
120 mm
4.7 inches
Outputs
—
1x HDMI 2.14x Thunderbolt
Bus Interface
PCIe 3.0 x16
Apple MPX
Other
Launch Price
—
2,799 USD
Production
End-of-life
End-of-life
Predecessor
London
—
Successor
Gem System
—