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 R7 250
CORE STATE
Cape Verde
VRAM
1024 MB
CLOCK SPEED
—
TDP
55 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 8870M
R7 250
Core Specs
Shading Units
640
512
-20.0%
Shaders
640
512
-20.0%
TMUs
40
32
-20.0%
ROPs
16
16
0.0%
Compute Units
10
8
-20.0%
Clocks
Base Clock
725 MHz
—
Boost Clock
775 MHz
—
GPU Clock
—
925 MHz
Memory Clock
1125 MHz
4.5 Gbps effective
900 MHz
1800 Mbps effective
Memory
Memory Size
2 GB
1024 MB
VRAM (MB)
2,048
1,024
-50.0%
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
128 bit
Bandwidth
72.00 GB/s
28.80 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
256 KB
Performance
Pixel Rate
12.40 GPixel/s
14.80 GPixel/s
Texture Rate
31.00 GTexel/s
29.60 GTexel/s
FP32 (TFLOPS)
992.0 GFLOPS
947.2 GFLOPS
FP64 (TFLOPS)
62.00 GFLOPS (1:16)
59.20 GFLOPS (1:16)
Power
TDP
—
55 W
TDP (W)
—
55
Suggested PSU
—
250 W
Power Connectors
—
None
Architecture
Architecture
GCN 1.0
GCN 1.0
GPU Name
Venus
Cape Verde
Generation
Solar System
(HD 8800M)
Volcanic Islands
(R7 200)
Process Size
28 nm
28 nm
Transistors
1,500 million
1,500 million
Die Size
123 mm²
123 mm²
Foundry
TSMC
TSMC
Density
12.2M / 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
—
Single-slot
Length
—
168 mm
6.6 inches
Outputs
—
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
London
Sea Islands
Successor
Gem System
Pirate Islands