GPU Comparison
RADEON
AMD Radeon HD 8870M
CORE STATE
Venus
VRAM
2 GB
CLOCK SPEED
775 MHz
TDP
—
BUS WIDTH
128 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2013
VS
RADEON
Radeon PRO W6800
CORE STATE
Navi 21
VRAM
32 GB
CLOCK SPEED
2322 MHz
TDP
250 W
BUS WIDTH
256 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 8870M
PRO W6800
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
725 MHz
1575 MHz
Boost Clock
775 MHz
2322 MHz
Memory Clock
1125 MHz
4.5 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
72.00 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
12.40 GPixel/s
222.9 GPixel/s
Texture Rate
31.00 GTexel/s
557.3 GTexel/s
FP32 (TFLOPS)
992.0 GFLOPS
17.83 TFLOPS
FP64 (TFLOPS)
62.00 GFLOPS (1:16)
1,114.6 GFLOPS (1:16)
FP16 (TFLOPS)
—
35.67 TFLOPS (2:1)
AI/RT
RT Cores
—
60
Power
TDP
—
250 W
TDP (W)
—
250
Suggested PSU
—
600 W
Power Connectors
—
1x 6-pin + 1x 8-pin
Architecture
Architecture
GCN 1.0
RDNA 2.0
GPU Name
Venus
Navi 21
Generation
Solar System
(HD 8800M)
Radeon Pro Navi
(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
—
Dual-slot
Length
—
267 mm
10.5 inches
Height
—
120 mm
4.7 inches
Outputs
—
6x mini-DisplayPort 1.4a
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Other
Launch Price
—
2,249 USD
Production
End-of-life
End-of-life
Predecessor
London
Radeon Pro Vega
Successor
Gem System
—