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 340 OEM
CORE STATE
GT215
VRAM
1024 MB
CLOCK SPEED
—
TDP
69 W
BUS WIDTH
128 bit
ARCHITECTURE
Tesla 2.0
PROCESS
40 nm
LAUNCH DATE
2010
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GT 340 OEM
Core Specs
Shading Units
640
96
-85.0%
Shaders
640
96
-85.0%
TMUs
40
32
-20.0%
ROPs
16
8
-50.0%
Compute Units
10
—
SM Count
—
12
Clocks
GPU Clock
1295 MHz
550 MHz
Shader Clock
—
1340 MHz
Memory Clock
1500 MHz
6 Gbps effective
850 MHz
1700 Mbps effective
Memory
Memory Size
4 GB
1024 MB
VRAM (MB)
4,096
1,024
-75.0%
Memory Type
GDDR5
GDDR3
Memory Bus
128 bit
128 bit
Bandwidth
96.00 GB/s
27.20 GB/s
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
512 KB
64 KB
Performance
Pixel Rate
20.72 GPixel/s
4.400 GPixel/s
Texture Rate
51.80 GTexel/s
17.60 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
257.3 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
—
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
69 W
TDP (W)
50
69
+38.0%
Suggested PSU
250 W
250 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Tesla 2.0
GPU Name
Polaris 23
GT215
Generation
Polaris
(RX 600)
GeForce 300
Process Size
14 nm
40 nm
Transistors
2,200 million
727 million
Die Size
103 mm²
144 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
5.0M / mm²
API Support
DirectX
12 (12_0)
11.1 (10_1)
OpenGL
4.6
3.3
Vulkan
1.3
—
OpenCL
2.1
1.1
CUDA
—
1.2
Shader Model
6.7
4.1
Physical
Slot Width
Single-slot
Single-slot
Length
—
168 mm
6.6 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
1x DVI1x HDMI1x VGA
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 200
Successor
Vega
GeForce 400