GPU Comparison
RADEON
AMD Radeon RX 640 OEM
CORE STATE
Polaris 23
VRAM
4 GB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2020
VS
GEFORCE
GeForce GT 640M LE
CORE STATE
GF108
VRAM
2 GB
CLOCK SPEED
—
TDP
32 W
BUS WIDTH
128 bit
ARCHITECTURE
Fermi
PROCESS
40 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GT 640M LE
Core Specs
Shading Units
640
96
-85.0%
Shaders
640
96
-85.0%
TMUs
40
16
-60.0%
ROPs
16
4
-75.0%
Compute Units
10
—
SM Count
—
2
Clocks
GPU Clock
1295 MHz
753 MHz
Shader Clock
—
1505 MHz
Memory Clock
1500 MHz
6 Gbps effective
785 MHz
3.1 Gbps effective
Memory
Memory Size
4 GB
2 GB
VRAM (MB)
4,096
2,048
-50.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
128 bit
Bandwidth
96.00 GB/s
50.24 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
512 KB
256 KB
Performance
Pixel Rate
20.72 GPixel/s
3.012 GPixel/s
Texture Rate
51.80 GTexel/s
12.05 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
289.0 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
24.08 GFLOPS (1:12)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
32 W
TDP (W)
50
32
-36.0%
Suggested PSU
250 W
—
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
Fermi
GPU Name
Polaris 23
GF108
Generation
Polaris
(RX 600)
GeForce 600M
Process Size
14 nm
40 nm
Transistors
2,200 million
585 million
Die Size
103 mm²
116 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
5.0M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
—
OpenCL
2.1
1.1
CUDA
—
2.1
Shader Model
6.7
5.1
Physical
Slot Width
Single-slot
—
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 500M
Successor
Vega
GeForce 700M