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
GeForce GTX 660 Ti
CORE STATE
GK104
VRAM
2 GB
CLOCK SPEED
980 MHz
TDP
150 W
BUS WIDTH
192 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
R7 250
GTX 660 Ti
Core Specs
Shading Units
512
1,344
+162.5%
Shaders
512
1,344
+162.5%
TMUs
32
112
+250.0%
ROPs
16
24
+50.0%
Compute Units
8
—
Clocks
Base Clock
—
915 MHz
Boost Clock
—
980 MHz
GPU Clock
925 MHz
—
Memory Clock
900 MHz
1800 Mbps effective
1502 MHz
6 Gbps effective
Memory
Memory Size
1024 MB
2 GB
VRAM (MB)
1,024
2,048
+100.0%
Memory Type
DDR3
GDDR5
Memory Bus
128 bit
192 bit
Bandwidth
28.80 GB/s
144.2 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
256 KB
384 KB
Performance
Pixel Rate
14.80 GPixel/s
27.44 GPixel/s
Texture Rate
29.60 GTexel/s
109.8 GTexel/s
FP32 (TFLOPS)
947.2 GFLOPS
2.634 TFLOPS
FP64 (TFLOPS)
59.20 GFLOPS (1:16)
109.8 GFLOPS (1:24)
Power
TDP
55 W
150 W
TDP (W)
55
150
+172.7%
Suggested PSU
250 W
450 W
Power Connectors
None
2x 6-pin
Architecture
Architecture
GCN 1.0
Kepler
GPU Name
Cape Verde
GK104
Generation
Volcanic Islands
(R7 200)
GeForce 600
Process Size
28 nm
28 nm
Transistors
1,500 million
3,540 million
Die Size
123 mm²
294 mm²
Foundry
TSMC
TSMC
Density
12.2M / mm²
12.0M / 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
—
3.0
Shader Model
6.5 (5.1)
6.5 (5.1)
Physical
Slot Width
Single-slot
Dual-slot
Length
168 mm
6.6 inches
241 mm
9.5 inches
Outputs
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Launch Price
—
299 USD
Production
End-of-life
End-of-life
Predecessor
Sea Islands
GeForce 500
Successor
Pirate Islands
GeForce 700