GPU Comparison
RADEON
AMD 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
VS
GEFORCE
Tesla K20Xm
CORE STATE
GK110
VRAM
6 GB
CLOCK SPEED
—
TDP
235 W
BUS WIDTH
384 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
R7 250
Tesla K20Xm
Core Specs
Shading Units
512
2,688
+425.0%
Shaders
512
2,688
+425.0%
TMUs
32
224
+600.0%
ROPs
16
48
+200.0%
Compute Units
8
—
Clocks
GPU Clock
925 MHz
732 MHz
Memory Clock
900 MHz
1800 Mbps effective
1300 MHz
5.2 Gbps effective
Memory
Memory Size
1024 MB
6 GB
VRAM (MB)
1,024
6,144
+500.0%
Memory Type
DDR3
GDDR5
Memory Bus
128 bit
384 bit
Bandwidth
28.80 GB/s
249.6 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
256 KB
1536 KB
Performance
Pixel Rate
14.80 GPixel/s
40.99 GPixel/s
Texture Rate
29.60 GTexel/s
164.0 GTexel/s
FP32 (TFLOPS)
947.2 GFLOPS
3.935 TFLOPS
FP64 (TFLOPS)
59.20 GFLOPS (1:16)
1,311.7 GFLOPS (1:3)
Power
TDP
55 W
235 W
TDP (W)
55
235
+327.3%
Suggested PSU
250 W
550 W
Power Connectors
None
—
Architecture
Architecture
GCN 1.0
Kepler
GPU Name
Cape Verde
GK110
Generation
Volcanic Islands
(R7 200)
Tesla Kepler
(Kxx)
Process Size
28 nm
28 nm
Transistors
1,500 million
7,080 million
Die Size
123 mm²
561 mm²
Foundry
TSMC
TSMC
Density
12.2M / mm²
12.6M / mm²
API Support
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.175
OpenCL
2.1 (1.2)
3.0
CUDA
—
3.5
Shader Model
6.5 (5.1)
6.5 (5.1)
Physical
Slot Width
Single-slot
Dual-slot
Length
168 mm
6.6 inches
267 mm
10.5 inches
Outputs
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Launch Price
—
7,699 USD
Production
End-of-life
End-of-life
Predecessor
Sea Islands
Tesla Fermi
Successor
Pirate Islands
Tesla Maxwell