GPU Comparison
RADEON
AMD Radeon HD 7970
CORE STATE
Tahiti
VRAM
3 GB
CLOCK SPEED
—
TDP
250 W
BUS WIDTH
384 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2012
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 7970
Tesla C2075
Core Specs
Shading Units
2,048
448
-78.1%
Shaders
2,048
448
-78.1%
TMUs
128
56
-56.3%
ROPs
32
48
+50.0%
Compute Units
32
—
SM Count
—
14
Clocks
GPU Clock
925 MHz
574 MHz
Shader Clock
—
1147 MHz
Memory Clock
1375 MHz
5.5 Gbps effective
783 MHz
3.1 Gbps effective
Memory
Memory Size
3 GB
6 GB
VRAM (MB)
3,072
6,144
+100.0%
Memory Type
GDDR5
GDDR5
Memory Bus
384 bit
384 bit
Bandwidth
264.0 GB/s
150.3 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
768 KB
768 KB
Performance
Pixel Rate
29.60 GPixel/s
16.07 GPixel/s
Texture Rate
118.4 GTexel/s
32.14 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
1,027.7 GFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
513.9 GFLOPS (1:2)
Power
TDP
250 W
247 W
TDP (W)
250
247
-1.2%
Suggested PSU
600 W
550 W
Power Connectors
1x 6-pin + 1x 8-pin
1x 6-pin + 1x 8-pin
Architecture
Architecture
GCN 1.0
Fermi 2.0
GPU Name
Tahiti
GF110
Generation
Southern Islands
(HD 7900)
Tesla Fermi
(x20xx)
Process Size
28 nm
40 nm
Transistors
4,313 million
3,000 million
Die Size
352 mm²
520 mm²
Foundry
TSMC
TSMC
Density
12.3M / 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
Dual-slot
Length
275 mm
10.8 inches
248 mm
9.8 inches
Height
111 mm
4.4 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x DVI
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Other
Launch Price
549 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
Tesla
Successor
Sea Islands
Tesla Kepler