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
GEFORCE
Tesla C2075
CORE STATE
GF110
VRAM
6 GB
CLOCK SPEED
—
TDP
247 W
BUS WIDTH
384 bit
ARCHITECTURE
Fermi 2.0
PROCESS
40 nm
LAUNCH DATE
2011
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 8870M
Tesla C2075
Core Specs
Shading Units
640
448
-30.0%
Shaders
640
448
-30.0%
TMUs
40
56
+40.0%
ROPs
16
48
+200.0%
Compute Units
10
—
SM Count
—
14
Clocks
Base Clock
725 MHz
—
Boost Clock
775 MHz
—
GPU Clock
—
574 MHz
Shader Clock
—
1147 MHz
Memory Clock
1125 MHz
4.5 Gbps effective
783 MHz
3.1 Gbps effective
Memory
Memory Size
2 GB
6 GB
VRAM (MB)
2,048
6,144
+200.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
384 bit
Bandwidth
72.00 GB/s
150.3 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
256 KB
768 KB
Performance
Pixel Rate
12.40 GPixel/s
16.07 GPixel/s
Texture Rate
31.00 GTexel/s
32.14 GTexel/s
FP32 (TFLOPS)
992.0 GFLOPS
1,027.7 GFLOPS
FP64 (TFLOPS)
62.00 GFLOPS (1:16)
513.9 GFLOPS (1:2)
Power
TDP
—
247 W
TDP (W)
—
247
Suggested PSU
—
550 W
Power Connectors
—
1x 6-pin + 1x 8-pin
Architecture
Architecture
GCN 1.0
Fermi 2.0
GPU Name
Venus
GF110
Generation
Solar System
(HD 8800M)
Tesla Fermi
(x20xx)
Process Size
28 nm
40 nm
Transistors
1,500 million
3,000 million
Die Size
123 mm²
520 mm²
Foundry
TSMC
TSMC
Density
12.2M / mm²
5.8M / mm²
API Support
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
—
OpenCL
2.1 (1.2)
1.1
CUDA
—
2.0
Shader Model
6.5 (5.1)
5.1
Physical
Slot Width
—
Dual-slot
Length
—
248 mm
9.8 inches
Outputs
—
1x DVI
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
London
Tesla
Successor
Gem System
Tesla Kepler