GPU Comparison
RADEON
AMD Radeon RX 640 Mobile
CORE STATE
Polaris 23
VRAM
2 GB
CLOCK SPEED
1218 MHz
TDP
50 W
BUS WIDTH
64 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2019
VS
GEFORCE
Tesla C870
CORE STATE
G80
VRAM
1536 MB
CLOCK SPEED
—
TDP
171 W
BUS WIDTH
384 bit
ARCHITECTURE
Tesla
PROCESS
90 nm
LAUNCH DATE
2007
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 Mobile
Tesla C870
Core Specs
Shading Units
640
128
-80.0%
Shaders
640
128
-80.0%
TMUs
40
32
-20.0%
ROPs
16
24
+50.0%
Compute Units
10
—
SM Count
—
16
Clocks
Base Clock
1082 MHz
—
Boost Clock
1218 MHz
—
GPU Clock
—
600 MHz
Shader Clock
—
1350 MHz
Memory Clock
1500 MHz
6 Gbps effective
800 MHz
1600 Mbps effective
Memory
Memory Size
2 GB
1536 MB
VRAM (MB)
2,048
1,536
-25.0%
Memory Type
GDDR5
GDDR3
Memory Bus
64 bit
384 bit
Bandwidth
48.00 GB/s
76.80 GB/s
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
512 KB
96 KB
Performance
Pixel Rate
19.49 GPixel/s
14.40 GPixel/s
Texture Rate
48.72 GTexel/s
38.40 GTexel/s
FP32 (TFLOPS)
1.559 TFLOPS
345.6 GFLOPS
FP64 (TFLOPS)
97.44 GFLOPS (1:16)
—
FP16 (TFLOPS)
1.559 TFLOPS (1:1)
—
Power
TDP
50 W
171 W
TDP (W)
50
171
+242.0%
Suggested PSU
—
450 W
Power Connectors
None
2x 6-pin
Architecture
Architecture
GCN 4.0
Tesla
GPU Name
Polaris 23
G80
Generation
Polaris Mobile
(M600)
Tesla
(x8xx)
Process Size
14 nm
90 nm
Transistors
2,200 million
681 million
Die Size
103 mm²
484 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
1.4M / mm²
API Support
DirectX
12 (12_0)
11.1 (10_0)
OpenGL
4.6
3.3
Vulkan
1.3
—
OpenCL
2.1
1.1 (1.0)
CUDA
—
1.0
Shader Model
6.7
4.0
Physical
Slot Width
IGP
Dual-slot
Outputs
Portable Device Dependent
No outputs
Bus Interface
PCIe 3.0 x8
PCIe 1.0 x16
Other
Launch Price
—
1,499 USD
Production
End-of-life
End-of-life
Predecessor
Gem System
—
Successor
Navi Mobile
Tesla